0001193125-26-044918 | 10-K | XBRL Viewer

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Bank Credit Agreements and Other Short-Term and Long-Term Debt - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Line Of Credit Facility [Line Items]
Dividents payable Permitted	$ 75.0
Maximum
Line Of Credit Facility [Line Items]
Dividents payable Permitted	75.0
Short-Term Debt
Line Of Credit Facility [Line Items]
Lines of credit unused and available	119.6
Line of credit facility advanced under foreign credit line	30.3
Line of Credit Facility Credit Used For Guarantee	$ 0.4
Long-Term Debt
Line Of Credit Facility [Line Items]
Debt instrument, maturity date	May 31, 2028
Credit Agreement
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	$ 225.0
Credit Agreement \| Long-Term Debt
Line Of Credit Facility [Line Items]
Debt Instrument, Covenant Description	Furthermore, under the Credit Agreement, restricted payments, including dividends and share repurchases, are permitted in certain circumstances, including while the pro forma Consolidated Leverage Ratio is, both before and after giving effect to any such restricted payment, at least 0.25 to 1.00 less than the maximum permitted under the Credit Agreement.
Credit Agreement \| Long-Term Debt \| Minimum
Line Of Credit Facility [Line Items]
Consolidated leverage ratio	0.25%
Credit Agreement \| Long-Term Debt \| Maximum
Line Of Credit Facility [Line Items]
Consolidated leverage ratio	1.00%
Swing Line Facility \| Long-Term Debt
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	$ 50.0
Letter of Credit \| Long-Term Debt
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	100.0
Alternative Currency Sublimit Facility \| Long-Term Debt
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	40.0
Incremental Term Loan Facility \| Long-Term Debt
Line Of Credit Facility [Line Items]
Long-term debt, aggregate principal amount	350.0
Unsecured \| Short-Term Debt
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	$ 150.3

Derivative Financial Instruments

12 Months Ended

Dec. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Note 18 – Derivative Financial Instruments

We use derivative instruments to manage risks related to foreign currencies, interest rates and the net investment risk in our foreign subsidiaries. Our objectives for holding derivatives include reducing, eliminating, and efficiently managing the economic impact of these exposures as effectively as possible. Our derivative programs include strategies that both qualify and do not qualify for hedge accounting treatment.

Hedges of Foreign Currency Risk

We are exposed to fluctuations in various foreign currencies against our different functional currencies. We use foreign currency forward agreements to manage this exposure. At December 31, 2025 and December 31, 2024, we had $345.2 million and $380.9 million, respectively, of outstanding foreign currency forward agreements that are intended to preserve the economic value of foreign currency denominated monetary assets and liabilities; these instruments are not designated for hedge accounting treatment in accordance with Accounting Standards Codification (“ASC”) No. 815.

Hedges of Interest Rate and Net Investment Risk

The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps, including interest rate collars, as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company makes use of collard foreign-exchange forward contracts to decrease the foreign exchange risk inherent in the Company’s investment in some of its foreign subsidiaries.

The table below sets forth the number of instruments and the notional amounts of the Company’s cross currency swaps at December 31, 2025 and December 31, 2024:


	Number of Instruments		Notional Amount
	2025	2024	2025		2024
Collared forwards	4	6	$	534,310	$	1,084,432

The table below sets forth the fair value of the Company’s interest rate related derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of December 31, 2025 and December 31, 2024:


	Fair Value
	Other Current and Non-Current Assets				Other Current and Non-Current Liabilities
	2025		2024		2025		2024
Collared forwards	$	11,454	$	593	$	2,558	$	8,071

The tables below sets forth the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the twelve months ended December 31 2025, 2024, and 2023:


Derivative Instruments	Amount of Gain or (Loss) Recognized in OCI on Derivative							Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from	Amount of Gain Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Designated as	December 31,							Effectiveness	December 31,
Hedging Instruments	2025		2024		2023			Testing)	2025		2024		2023
Collared forwards		11,908		1,535		(10,202	)	Interest income		20,034		10,409		4,304
Cross currency swaps		-		8,450		(1,442	)	Interest income		-		1,219		1,653


	Amount of Loss Recognized in Net Income
	December 31,
Derivative Instruments Not Designated as Hedging Instruments	2025			2024			2023
Foreign-currency forward contracts		(4,870	)		(10,458	)		(5,364	)

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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+ Details

Summary of Operations and Significant Accounting Policies

12 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Operations and Significant Accounting Policies

Note 1 – Summary of Operations and Significant Accounting Policies

Nature of operations

GENERAL

Diodes Incorporated, together with its subsidiaries (collectively the “Company,” “we,” or “our” (Nasdaq: DIOD)), a Standard and Poor’s Smallcap 600 and Russell 3000 Index company, is a leading global manufacturer and supplier of high-quality application-specific standard products within the broad discrete, logic, analog, and mixed-signal semiconductor markets. The Company serves the industrial, automotive, computing, consumer, and communications markets.

The Company’s diverse product portfolio covers diodes; rectifiers; transistors; MOSFETs; SiC diodes and MOSFETs; protection devices; logic; voltage translators; amplifiers and comparators; sensors; and power management devices such as AC-DC converters, digital isolators and isolated gate drivers, DC-DC switching, photocoupler, linear voltage regulators, voltage references, LED drivers, power switches, and voltage supervisors. We also have timing and connectivity solutions including clock ICs, crystal oscillators, PCIe packet switches, multi-protocol switches, interface products, and signal integrity solutions for high-speed signals.

The Company operates form the following locations, with additional support offices throughout the world:

•

Corporate Headquarters
Plano, Texas, United States

•

Design, Engineering, and Marketing
Shanghai, Yangzhou, Shenzhen, and Hong Kong, China
Oldham, England
New Taipei City, Hsinchu, and Tainan, Taiwan
Milpitas, California, and Plano, Texas, United States

•

Wafer Fabrication
Shanghai and Wuxi, China
Oldham, England
Greenock, Scotland
Hsinchu, Taiwan
South Portland, Maine, United States

•

Assembly and Test
Shanghai, Chengdu, and Wuxi, China
Neuhaus am Rennweg, Germany
Chongli, Taiwan

•

Sales, Warehouse, and Logistics
Hong Kong, Shanghai, Beijing, Shenzhen, Wuhan, Guangzhou, Qingdao, and Xiamen, China
Oldham, England
Frankfurt and Munich, Germany
Milan, Italy
Tokyo, Japan
Singapore
Seongnam-si, South Korea
New Taipei City, Taiwan
Milpitas, California and Plano, Texas, United States

The Company’s manufacturing facilities have achieved certifications in the internationally recognized standards of ISO 9001:2015, ISO 14001:2015, and, for automotive products, IATF 16949:2016 and the Company is also C-TPAT certified. We believe these quality awards reflect the superior quality-control techniques established at the Company and further enhance our credibility as a vendor-of-choice to original equipment manufacturers (“OEMs”) increasingly concerned with quality and consistency.

Our market focus is on high-growth, end-user applications in the following areas:

•

Automotive: connected driving, comfort/style/safety, electrification/powertrain;

•

Industrial: embedded systems, industrial automation, medical, energy management, smart buildings;

•

Computing: Artificial Intelligence (“AI”) data center including AI server, storage, and edge AI;

•

Consumer: Internet of things (“IoT”): wearables, home automation, home appliances, and charging solutions, and

•

Communications: smart phones, telecom, enterprise networking, smart infrastructure including space-based connectivity.

Significant Accounting Policies

Principles of consolidation – The consolidated financial statements include the accounts of Diodes Incorporated, its wholly-owned subsidiaries and its controlled majority-owned subsidiaries. We account for equity investments in companies over which we have the ability to exercise significant influence, but do not hold a controlling interest, under the equity method, and we record our proportionate share of income or losses in Interest and other, net in the consolidated statements of income. All significant intercompany balances and transactions have been eliminated.

Use of estimates – The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America (“GAAP”) requires that management make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The level of uncertainty in estimates and assumptions increases with the length of time until the underlying transactions are completed. Actual results may differ from these estimates in amounts that may be material to the consolidated financial statements and accompanying notes.

Revenue recognition – The Company generates revenue from sales of its semiconductor products to direct customers and distributors and recognizes revenue when control is transferred. This transfer generally occurs at a point in time upon shipment or delivery to the customer or distributor, depending upon the terms of the sales order. The payment terms on our sales are based on negotiations with our customers. For sales to distributors, payment is not contingent upon resale of the products. The vast majority of our revenue from products and services is accounted for at a point in time.

Our customers can order different types of semiconductors in a single contract (purchase order), and each line on a purchase order represents a separate performance obligation. Depending on the terms of an arrangement, we may also be responsible for shipping and handling activities. We have elected to account for shipping and handling as activities to fulfill our promise to transfer the good(s). As such, shipping and handling activities do not represent a separate performance obligation, and are accrued as a fulfillment cost. Further, although we offer warranties on our products, our warranties are considered to be assurance-type in nature and do not cover anything beyond ensuring that the product is functioning as intended. Based on the guidance in ASC 606, assurance-type warranties do not represent separate performance obligations; therefore, the primary performance obligation in the majority of our contracts is the delivery of a specific good through the purchase order submitted by our customer.

We record allowances/reserves for a number of items. The following items are the largest dollar items for which we record allowances/reserves, with ship and debit making up the vast majority: (i) ship and debit, which arise when we issue credit to certain distributors upon their shipments to their end customers; (ii) stock rotation, which are contractual obligations that permit certain distributors, up to four times a year, to return a portion of their inventory based on historical shipments to them in exchange for an equal and offsetting order; and (iii) price protection, which arise when market conditions cause average selling prices to decrease and we issue credit to certain distributors on their inventory. Ship and debit reserves are recorded as a reduction to net sales with a corresponding reduction to accounts receivable. Stock rotation reserves and price protection reserves are recorded as a reduction to net sales with a corresponding increase in accrued liabilities.

We also assess our customer’s ability and intention to pay, which is based on a variety of factors including our customer’s historical payment experience, their financial condition and the condition of the global economy and financial markets. Payment terms and conditions typically vary depending on negotiations with the customer.

Net sales are reduced in the period of sale for estimates of product returns and other allowances including distributor adjustments, which were approximately $331.0 million, $346.8 million, and $262.8 million in 2025, 2024, and 2023, respectively.

Product warranty – We generally warrant our products for a period of one year from the date of sale. Historically, warranty expense has not been material.

Cash, cash equivalents, and short-term investments – We consider all highly liquid investments with maturity of three months or less at the date of purchase to be cash equivalents. We currently maintain substantially all of our day-to-day operating cash balances with major financial institutions. We hold short-term investments consisting of time deposits, which are highly liquid with maturity dates greater than three months at the date of purchase. Generally, we can access these investments in a relatively short amount of time but in doing so we generally forfeit a portion of interest income. See Note 3 below for additional information regarding fair value of financial instruments.

Allowance for doubtful accounts – We evaluate the collectability of our accounts receivable based upon a combination of factors, including the current business environment and historical experience. If we are aware of a customer’s inability to meet its financial obligations, we record an allowance to reduce the receivable to the amount we reasonably believe will be collected from the customer. For all other customers, we record an allowance based upon the amount of time the receivables are past due. If actual accounts receivable collections differ from these estimates, an adjustment to the allowance may be necessary with a resulting effect on operating expense. Accounts receivable are presented net of valuation allowance, which were approximately $4.1 million at December 31, 2025 and $7.8 million at December 31, 2024.

Inventories – Inventories are stated at the lower of cost or net realizable value. Cost is determined principally by the first-in, first-out method. Cost includes materials, labor, and manufacturing overhead related to the purchase and production of inventories. Any write-down of inventory to the lower of cost or net realizable value at the close of a fiscal period creates a new cost basis that subsequently would not be marked up based on changes in underlying facts and circumstances. On an on-going basis, we evaluate inventory for obsolescence and slow-moving items. This evaluation includes analysis of sales levels, sales projections, purchases by item, shelf life, and raw material usage related to our manufacturing facilities. If our review indicates a reduction in utility below carrying value, we reduce inventory to a new cost basis. If future demand or market conditions are different from our current estimates, an inventory adjustment to write down inventory may be required, and would be reflected in cost of goods sold in the period the revision is made.

Property, plant, and equipment – Purchased property, plant, and equipment is recorded at historical cost, and property, plant, and equipment acquired in a business combination is recorded at fair value on the date of acquisition. Property, plant and equipment is depreciated using straight-line methods over the estimated useful lives, which range from 20 to 55 years for buildings and 3 to 10 years for machinery and equipment. The estimated lives of leasehold improvements range from 3 to 5 years, and are amortized over the shorter of the remaining lease term or their estimated useful lives.

Leases – The Company determines if an arrangement is a lease at its inception. Operating and financing lease arrangements are comprised primarily of real estate and equipment agreements for which the right-of-use (“ROU”) assets are included in other assets and the corresponding lease liabilities, depending on their maturity, are included in Accrued liabilities and other current or Other long-term liabilities in the Consolidated Balance Sheet.

ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. The lease term includes options to extend the lease when it is reasonably certain that the option will be exercised. Leases with a term of 12 months or less are not recorded on the Consolidated Balance Sheet.

The Company uses its estimated incremental borrowing rate in determining the present value of lease payments considering the term of the lease, which is derived from information available at the lease commencement date, giving consideration to publicly available data for instruments with similar characteristics. The Company accounts for the lease and non-lease components as a single lease component.

Segment reporting – The Company’s operations are managed and reported on a consolidated basis to our President and CEO who is also our CODM. For financial reporting purposes, we operate in a single segment, standard semiconductor products, through our various design, manufacturing, and distribution facilities, which reflects the way in which our CODM executes operating decisions, allocates resources, and manages the growth and profitability of the Company. We sell product primarily through our operations in Asia, the Americas, and Europe. See Note 16 of “Notes to Consolidated Financial Statements” of this Annual Report for additional information.

Goodwill and other indefinite lived intangible assets – Goodwill and indefinite lived assets are tested for impairment on an annual basis or when an event or changes in circumstances indicate that its carrying value may not be recoverable. Goodwill impairment is tested at the reporting unit level, which is defined as an operating segment or one level below the operating segment. Diodes has one operating segment. No goodwill impairment occurred in 2025, 2024, or 2023. Goodwill is reviewed for impairment using either a qualitative assessment or a quantitative goodwill impairment test. If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary. When we perform the quantitative goodwill impairment test, we compare fair value to carrying value, which includes goodwill. If fair value exceeds carrying value, the goodwill is not considered impaired. If the carrying value is higher than the fair value, the difference would be recognized as an impairment loss.

Impairment of long-lived assets – Our long-lived assets are reviewed whenever events or changes in circumstances indicate that the carrying value may not be recoverable. We consider assets to be impaired if the carrying value exceeds the undiscounted projected cash flows from operations. If impairment exists, the assets are written down to fair value or to the projected discounted cash flows from related operations. As of December 31, 2025, we expect the remaining carrying value of assets to be recoverable.

Business combinations – We account for acquired businesses using the acquisition method of accounting, which requires that once control of a business is obtained, 100% of the assets acquired and liabilities assumed, including amounts attributed to noncontrolling interests, be recorded at the date of acquisition at their respective fair values. Any excess of the purchase price over the estimated fair values of the net assets acquired is recorded as goodwill.

For significant acquisitions we may use independent third-party valuation specialists to assist us in determining the fair value of assets acquired and liabilities assumed.

Significant judgment is often required in estimating the fair value of assets acquired and liabilities assumed. The Company makes estimates and assumptions about conditions of the assets, other costs not captured in the base costs, and consideration for entrepreneurial profit, depreciation, functional obsolescence, and economic obsolescence allocated to the various property, plant, and equipment categories considering the perspective of marketplace participants.

While management believes those expectations and assumptions are reasonable, they are inherently uncertain. Unanticipated market or macroeconomic events and circumstances may occur, which could affect the accuracy or validity of the estimates and assumptions, which could result in subsequent impairments.

During the normal course of business the Company pursues acquisitions. See Note 20 for additional information regarding business acquisitions.

Equity investments – We regularly invest in equity securities of public and private companies to promote business and strategic objectives. Equity investments are measured and recorded as follows:

Marketable equity securities are equity securities with readily determinable fair value (“RDFV”) that are measured and recorded at fair value on a recurring basis with changes in fair value, whether realized or unrealized, recorded through the income statement.

Non-marketable equity securities are equity securities without RDFV that are measured and recorded using a measurement alternative that measures the security at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes.

Equity-method investments are equity securities in investees we do not control but over which we have the ability to exercise significant influence. Equity method investments are measured at cost minus impairment, if any, plus or minus our share of equity method investee income or loss.

Variable interest entities – The Company determines at the inception of each arrangement whether an entity in which it has made an investment or in which the Company has other variable interests is considered a variable interest entity (“VIE”). The Company consolidates VIEs when it is the primary beneficiary. The Company is the primary beneficiary of a VIE when it has the power to direct activities that most significantly affect the economic performance of the VIE and has the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. If the Company is not the primary beneficiary of a VIE, the Company accounts for the investment or other variable interests in a VIE in accordance with applicable GAAP. The Company will reassess whether they are the primary beneficiary at each reporting date.

Income taxes – Income taxes are accounted for using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax bases of our assets and liabilities. If it is more likely than not that some portion of deferred tax assets will not be realized, a valuation allowance is recorded.

GAAP prescribes a comprehensive model for how companies should recognize, measure, present, and disclose in their financial statements uncertain tax positions taken or expected to be taken on a tax return. Tax positions shall initially be recognized in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions shall initially and subsequently be measured as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the tax authority assuming full knowledge of the position and all relevant facts. All deferred income taxes are classified as noncurrent assets or noncurrent liabilities on the consolidated balance sheet as of December 31, 2025 and 2024, respectively.

Research and development costs – Internally-developed research and development costs are expensed as incurred. Acquired in-process research and development (“IPR&D”) is capitalized as an indefinite-lived intangible asset and evaluated periodically for impairment. When the project is completed, an expected life is determined and the IPR&D is amortized as an expense over the expected life.

Shipping and handling costs – Shipping and handling costs for products shipped to customers, which are included in selling, general and administrative expenses, were approximately $20.3 million, $18.0 million, and $20.8 million for the twelve months ended December 31, 2025, 2024, and 2023, respectively.

Concentration of credit risk – Financial instruments, which potentially subject us to concentrations of credit risk, include trade accounts receivable. Credit risk is limited by the dispersion of our customers over various geographic areas, operating primarily in electronics manufacturing and distribution. We perform a credit evaluation of new customers and monitor the accounts receivable aging of our existing customers. Generally we require no collateral from our customers and historically credit losses have been insignificant.

We currently maintain substantially all of our day-to-day cash balances and short-term investments with major financial institutions. Cash balances are usually in excess of Federal and/or foreign deposit insurance limits.

Valuation of financial instruments – The carrying value of our financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable, credit line, and long-term debt approximate fair value due to their current market conditions, maturity dates, and other factors.

Share-based compensation – Restricted stock grants are measured based on the fair market value of the underlying stock on the date of grant and compensation expense is recognized on a straight-line basis over the requisite four-year service period. Performance stock units are measured based on the fair market value of the underlying stock on the date of grant and compensation expense is recognized over the three-year performance period, with adjustments made to the expense to recognize the probable payout percentage.

We use the Black-Scholes-Merton model to determine the fair value of stock options on the date of grant and recognize compensation expense for stock options on a straight-line basis. The amount of compensation expense recognized using the Black-Scholes-Merton model requires us to exercise judgment and make assumptions relating to the factors that determine the fair value of our stock option grants. The fair value calculated by this model is a function of several factors, including the grant price, the expected future volatility, the expected term of the option and the risk-free interest rate of the option. The expected term and expected future volatility of the options require judgment. In addition, we estimate the expected forfeiture rate and only recognize expense for those stock options expected to vest. We estimate the forfeiture rate based on historical experience, and to the extent our actual forfeiture rate is different from our estimate, share-based compensation expense is adjusted accordingly.

Treasury stock – In May 2025, the Company’s Board of Directors authorized the repurchase of up to an aggregate of $100 million of its outstanding common stock, $0.66 2/3 par value per share. The share repurchase program will expire on December 31, 2030, unless extended or shortened by the Board of Directors. As of December 31, 2025, the Company has repurchased approximately $33.8 million of its common stock. Shares that are reacquired are recorded as treasury stock, at cost, the measurement date of cost being date of purchase, as a reduction to stockholder’ equity.

Functional currencies and foreign currency translation – We translate the assets and liabilities of our non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates on the balance sheet date. Net sales and expense for these subsidiaries are translated at the weighted-average exchange rate during the period presented. Resulting translation adjustments are recorded as a separate component of accumulated other comprehensive income or loss within stockholders’ equity in the consolidated balance sheets.

Defined benefit plan – We maintain plans covering certain of our employees in the U.K. The overfunded or underfunded status of pension and postretirement benefit plans are recognized on the balance sheet. Actuarial gains and losses, and prior service costs or credits, are recognized in other comprehensive income (loss), net of tax effects, until they are amortized as a component of net periodic benefit cost. For financial reporting purposes, the net pension and supplemental retirement benefit obligations and the related periodic pension costs are calculated based upon, among other things, assumptions of the discount rate for plan obligations, estimated return on pension plan assets and mortality rates. These obligations and related periodic costs are measured using actuarial techniques and assumptions. The projected unit credit method is the actuarial cost method used to compute the pension liabilities and related expenses. The expected long-term return on plan assets was determined based on historical and expected future returns of the various asset classes. The plan’s investment policy includes a mandate to diversify assets and invest in a variety of asset classes to achieve its expected long-term return and is currently invested in a variety of funds representing most standard equity and debt security classes. Trustees of the plan may make changes at any time.

Noncontrolling interest – Noncontrolling interest primarily relates to the minority investors’ share of the earnings of certain China and Taiwan subsidiaries. Noncontrolling interests are a separate component of equity and not a liability. Increases or decreases in noncontrolling interest, due to changes in our ownership interest of the subsidiaries that leave control intact, are recorded as equity transactions. The noncontrolling interest in our subsidiaries and their equity balances are reported separately in the consolidated financial statements, and activities of these subsidiaries are included therein.

Contingencies – From time to time, we may be involved in a variety of legal matters that arise in the normal course of business. Based on information available, we evaluate the likelihood of potential outcomes. We record and disclose the appropriate liability when the amount is deemed probable and reasonably estimable. In addition, we do not accrue for estimated legal fees and other directly related costs as they are expensed as incurred.

Comprehensive income (loss) – GAAP generally requires that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities are reported as separate components of the equity section of the consolidated balance sheet, such items, along with net income, are components of comprehensive income or loss. The components of accumulated other comprehensive income or loss include foreign currency translation adjustments and unrealized gain or loss on defined benefit plan.

The components and balance of comprehensive income is as follows:


	2025			2024			2023
Unrealized foreign currency losses	$	(38,436	)	$	(75,044	)	$	(63,171	)
Unrealized loss on cross currency and interest rate swaps, net of tax		(42,146	)		(34,906	)		(37,294	)
Unrealized loss on defined benefit plan		(30,165	)		(36,774	)		(42,762	)
Balance at December 31,	$	(110,747	)	$	(146,724	)	$	(143,227	)

Change in Accounting Estimate – On an on-going basis, the Company evaluates inventory for a number of risk factors in the determination of net realizable value via the salability and obsolescence (“S&O”) reserve. Those risk factors include inventory aging, salability, excess inventory, shelf life, customer risk, and other risks. These factors are quantified separately via analysis of sales levels, sales projections, purchases by item, as well as raw material usage related to the Company’s manufacturing facilities, etc. and are aggregated into a single S&O reserve that is applied to the overall inventory balance to recognize that inventory at the lower of its cost or net realizable value.

In the fourth quarter of 2024, the Company completed a product obsolescence study related to its inventory. Based on the results of this study the Company increased the shelf life of certain of its products, resulting in a change in accounting estimate. This change was effective December 31, 2024 and resulted in a decrease of approximately $4.5 million in cost of goods sold and an increase in net income of approximately $3.8 million, or $0.08 per basic and diluted share, reflected in the Company’s Consolidated Statements of Income for the twelve months ended December, 31, 2024.

In the fourth quarter of 2024, after completing its total inventory reserve analysis, including all inventory risk factors, including but not limited to the product shelf life, the Company’s total inventory reserve increased approximately $5.6 million and is reflected in cost of goods sold in the Company’s Consolidated Statements of Income for the twelve months ended December 31, 2024.

Recently Issued Accounting Pronouncements

The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact to the Company’s financial statements:

In December 2025 the FASB issued ASU 2025-10, “Government Grants (Topic 832) Accounting for Government Grants Received by Business Entities (“ASU 2025-10”). ASU 2025-10 establishes authoritative guidance on the accounting for government grants received by business entities. The amendments in ASU 2025-10 require that a government grant received by a business entity should not be recognized until:

It is probable that (a) a business entity will comply with the conditions attached to the grant and (b) the grant will be received.

A business entity meets the recognition guidance for a grant related to an asset or a grant related to income.

The amendments in this Update require that a grant related to an asset be recognized on the balance sheet as a business entity incurs the related costs for which the grant is intended to compensate, either as:

Deferred income (the deferred income approach)

An adjustment to the cost basis in determining the carrying amount of the asset (the cost accumulation approach).

For public business entities, the amendments in this Update are effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods. The Company is currently evaluating the impact this amended guidance may have on its financial statements.

In July 2025, the FASB issued ASU 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets” (“ASU 2025-05”). ASU 2025-05 provides a practical expedient that all entities can use when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under ASC 606, Revenue from Contracts with Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain unchanged for the remaining life of those assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods in those years. Entities that elect the practical expedient and, if applicable, make the accounting policy election are required to apply the amendments prospectively. The Company does not expect this amended guidance will have a material impact on its financial statements.

In May 2025, the FASB issued ASU 2025-03, “Business Combination and Consolidation: Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity” (“ASU 2025-03”). ASU 2025-03 provides clarifying guidance on determining the

accounting acquirer in certain transactions involving VIEs. The update aims to improve consistency and comparability in financial reporting, especially when companies merge with a special-purpose acquisition company (“SPAC”). ASU 2025-03 requires entities to apply the same factors used for determining the accounting acquirer in other acquisition transactions. Essentially, it aims to make financial reporting more comparable and decision-useful for investors by ensuring that the accounting acquirer is appropriately identified in acquisitions of VIEs, particularly in SPAC transactions. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026 including interim periods within those annual periods, with early adoption permitted. The Company is currently evaluating the impact this amended guidance may have on its financial statements.

In November 2024, the Financial Accounting Standards Board issued Accounting Standards Update 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The amendments in this update require that at each interim and annual reporting period an entity disclose:

•

The amounts of purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. A relevant expense caption is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed above;

•

Companies are also required to include certain amounts that are already required to be disclosed under current generally accepted accounting principles in the same disclosure as the other disaggregation requirements;

•

Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and

•

Disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses.

The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact this amended guidance may have on its financial statements.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income or loss by the applicable statutory income tax rate). For public business entities, the amendments in this Update are effective for annual periods beginning after December 15, 2024. The Company adopted the new standard and the additional disclosure requirements with retrospective application are contained in Note 12 - Income Taxes- Effective Rate Reconciliation.

Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Depreciation	$ 121,520	$ 120,637	$ 122,048

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
Document and Entity Information - USD ($) $ in Billions	Dec. 31, 2025	Feb. 03, 2026	Jun. 30, 2025
Cover [Abstract]
Document type	10-K
Document period end date	Dec. 31, 2025
Amendment flag	false
Entity registrant name	DIODES INC /DEL/
Entity central index key	0000029002
Entity Current Reporting Status	Yes
Entity voluntary filers	No
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity well known seasoned issuer	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity common stock shares outstanding		45,877,458
Entity public float			$ 2.4
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Trading Symbol	DIOD
Entity File Number	002-25577
Entity Tax Identification Number	95-2039518
Entity Address, Address Line One	4949 Hedgcoxe Road
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Plano
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75024
City Area Code	972
Local Phone Number	987-3900
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, Par Value $0.66 2/3
Security Exchange Name	NASDAQ
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	true
Auditor Name	Baker Tilly US, LLP
Auditor Location	Irvine, California
Auditor Firm ID	23
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement to be filed with the United States Securities and Exchange Commission (“SEC”) pursuant to Regulation 14A in connection with the 2026 annual meeting of stockholders are incorporated by reference into Part III of this Annual Report. The proxy statement will be filed with the SEC not later than 120 days after the registrant’s fiscal year ended December 31, 2025.
Document Financial Statement Error Correction [Flag]	false
Auditor Opinion [Text Block]	We have audited the accompanying consolidated balance sheets of Diodes Incorporated (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, equity and cash flows for each of the three years in the period ended December 31 2025, and the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Jun. 30, 2025	May 31, 2025	Dec. 31, 2025
Keylink
Related Party Transaction [Line Items]
Related Party ownership of common stock			5.00%
Related Party Transaction, Description of Transaction			Keylink is a 5% joint venture partner in our Shanghai assembly and test facilities.
GAPT
Related Party Transaction [Line Items]
Percentage of ownership interest	43.00%	43.00%
Nuvoton
Related Party Transaction [Line Items]
Agreement to purchase with related party			$ 3.1

- Definition

A description of the related party transaction, including transactions to which no amounts or nominal amounts were ascribed and such other information deemed necessary to an understanding of the effects of the transactions on the financial statements. Examples of common related party transactions are, sales, purchases and transfers of realty and personal property, services received or furnished, loans and leases to and from top management and affiliates.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
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-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

Accrued Liabilities and Other Long-Term Liabilities (Tables)

12 Months Ended

Dec. 31, 2025

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities and other current liabilities at December 31 were:


	2025		2024
Accrued expenses	$	73,364	$	70,983
Compensation and payroll taxes		46,389		44,887
Equipment purchases		15,841		13,065
Operating lease		10,666		10,863
Finance lease		43		40
Accrued pricing adjustments		27,183		36,826
Accrued professional services		3,792		4,596
Tax payable - non-income tax related		3,379		3,158
Other		265		2,158
	$	180,922	$	186,576

Schedule of Other Long-Term Liabilities

Other long-term liabilities at December 31 were:


	2025		2024
Accrued defined benefit plan	$	3,382	$	9,635
Operating lease		28,890		28,648
Finance lease		80		63
Deferred grants and subsidy		8,289		8,986
Deferred compensation		20,344		18,136
Tax contingencies		9,218		9,218
Other		7,325		15,890
	$	77,528	$	90,576

Property, Plant and Equipment - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Buildings and leasehold improvements	$ 366,669	$ 352,670
Machinery and equipment	1,349,750	1,276,038
Property, plant and equipment, at cost	1,716,419	1,628,708
Less: Accumulated depreciation and amortization	(1,224,786)	(1,108,320)
Net	491,633	520,388
Construction in-progress	84,510	91,736
Land	73,462	72,135
Property, plant and equipment, net	$ 649,605	$ 684,259	$ 746,169

Employee Benefit Plans - Expected future benefit payments (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2026	$ 6,527
2027	6,230
2028	6,341
2029	6,327
2030	6,652
2031-2035	$ 33,962

Bank Credit Agreements and Other Short-Term and Long-Term Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total long-term debt	$ 25,666	$ 20,659
Less: Current portion of long-term debt	(1,442)	(1,096)
Long-term debt, net of current portion	24,224	19,563
Various during 2026
Debt Instrument [Line Items]
Short-term debt	$ 30,264	31,429
Short-term debt, Interest Rate	Various indices plus margin
Notes Payable to Bank \| Bank of Taiwan \| June 2033
Debt Instrument [Line Items]
Total long-term debt	$ 1,479	1,593
Long-term debt, Interest Rate	2-yr deposit rate floating plus 0.1148%
Notes Payable to Bank \| CTBC Bank \| October 2027
Debt Instrument [Line Items]
Total long-term debt	$ 4,770	3,052
Long-term debt, Interest Rate	2-yr deposit rate floating plus 0.082%
Notes Payable to Bank \| CTBC Bank \| March 2027
Debt Instrument [Line Items]
Total long-term debt	$ 3,180	3,052
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank \| CTBC Bank \| April 2027
Debt Instrument [Line Items]
Total long-term debt	$ 954	0
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank \| CTBC Bank \| April 2027
Debt Instrument [Line Items]
Total long-term debt	$ 2,226	0
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank \| E Sun Bank \| May 2028
Debt Instrument [Line Items]
Total long-term debt	$ 11,384	11,606
Long-term debt, Interest Rate	TAIBOR 3M plus 0.5%
Notes Payable to Bank \| E Sun Bank \| July 2027
Debt Instrument [Line Items]
Total long-term debt	$ 95	148
Long-term debt, Interest Rate	1-M deposit rate floating plus 0.08%
Notes Payable to Bank \| E Sun Bank \| July 2030
Debt Instrument [Line Items]
Total long-term debt	$ 918	1,064
Long-term debt, Interest Rate	1-M deposit rate floating plus 0.08%
Notes Payable to Bank \| HSBC \| December 2030
Debt Instrument [Line Items]
Total long-term debt	$ 223	0
Long-term debt, Interest Rate	2.22
Notes Payable to Bank \| Taishin International Bank \| October 2027
Debt Instrument [Line Items]
Total long-term debt	$ 99	144
Long-term debt, Interest Rate	1 M time deposit rate + 1.4%
Notes Payable to Bank \| Chang Hwa Bank \| January 2027
Debt Instrument [Line Items]
Total long-term debt	$ 258	0
Long-term debt, Interest Rate	3M deposit rate floating plus 0.25%
Notes Payable to Bank \| Chang Hwa Bank \| November 2030
Debt Instrument [Line Items]
Total long-term debt	$ 32	0
Long-term debt, Interest Rate	2.22
Notes Payable to Bank \| Chang Hwa Bank \| December 2030
Debt Instrument [Line Items]
Total long-term debt	$ 48	$ 0
Long-term debt, Interest Rate	2.22

Leases (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Components of Lease Expense

The table below sets forth the components of lease expense for the twelve months ended December 31:


	2025		2024		2023
Operating lease expense	$	14,508	$	14,407	$	13,066
Finance lease expense:
Amortization of assets		28		29		32
Interest on lease liabilities		4		4		3
Short-term lease expense		2,313		2,260		1,899
Variable lease expense		4,858		4,893		4,350
Total lease expense	$	21,711	$	21,593	$	19,350

Supplemental Balance Sheet Information Related to Leases

The table below sets forth supplemental balance sheet information related to leases as of December 31:


	2025			2024
Operating leases:
Operating lease ROU assets	$	52,033		$	53,749

Current operating lease liabilities		10,666			10,863
Noncurrent operating lease liabilities		28,890			28,648
Total operating lease liabilities	$	39,556		$	39,511

Finance leases:
Finance lease ROU assets	$	2,765		$	2,708
Accumulated amortization		(2,641	)		(2,606	)
Finance lease ROU assets, net	$	124		$	102

Current finance lease liabilities	$	43		$	40
Non-current finance lease liabilities		80			63
Total finance lease liabilities	$	123		$	103

Weighted average remaining lease term (in years):
Operating leases		7.2			6.6
Finance leases		2.8			3.3

Weighted average discount rate:
Operating leases		4.1	%		4.0	%
Finance leases		3.6	%		3.6	%

Supplemental Cash Flow and Other Information Related to Leases

The table below sets forth supplemental cash flow and other information related to leases for the twelve months ended December 31:


	2025		2024		2023
Cash paid for the amounts included in the measurements of lease liabilities:
Operating cash outflows from operating leases	$	19,577	$	21,220	$	18,609
Operating cash outflows from finance leases		4		4		3
Financing cash outflow from finance leases		85		64		115

ROU assets obtained in exchange for lease liabilities incurred:
Operating leases		11,189		12,864		14,251

Schedule of Operating and Finance Lease Liability Maturities

The table below sets forth information about lease liability maturities:


	December 31,
	Operating Leases			Finance Leases
2026	$	12,989		$	47
2027		9,705			44
2028		5,696			36
2029		2,620			3
2030		2,581			-
2031		2,525			-
2032 and thereafter		10,295			-
Total lease payments		46,411			130
Less: imputed interest		(6,855	)		(7	)
Total lease obligations		39,556			123
Less: current obligations		(10,666	)		(43	)
Long-term lease obligations	$	28,890		$	80

Acquisitions and Divestitures - Additional Information (Details) - USD ($) $ in Thousands			12 Months Ended
	Apr. 29, 2025	Oct. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Gain on disposal of subsidiary			$ 13,730	$ 0	$ 0
Total net consideration after adjusting for cash acquired			$ 5,310	56,661	3
Weighted amortization period for intangible assets			9 years 4 months 24 days
TF Semiconductor Solutions Inc
Business Acquisition [Line Items]
Equity ownership percentage	56.40%
Equity method investment common stock value	$ 17,600
Gain on disposal of subsidiary	$ 13,700
Fortemedia
Business Acquisition [Line Items]
Acquisition date		Oct. 31, 2024
Percentage of outstanding interest acquired		100.00%
Total consideration paid		$ 60,400
Total net consideration after adjusting for cash acquired		52,600
Business acquisition, proforma information, description			The unaudited pro forma consolidated results of operations do not purport to be indicative of the results that would have been obtained if the above acquisition occurred as of the dates indicated or of those results that may be obtained in the future. The unaudited pro forma consolidated results for the twelve months ended December 31, 2024, include adjustments that result in an increase to amortization and depreciation of $2.5 million, net of tax.The unaudited pro forma consolidated results for the twelve months ended December 31, 2023 include adjustments that result in an increase to amortization and depreciation of $7.7 million, net of tax. These unaudited pro forma consolidated results of operations were derived, in part, from the historical consolidated financial statements of Fortemedia and other available information and assumptions believed to be reasonable under the circumstances. Fortemedia has been conformed to the Company's reporting calendar.
Adjustments in increase to amortization included in unaudited proforma consolidated results				$ 2,500	$ 7,700
Fortemedia \| Developed Technologies
Business Acquisition [Line Items]
Fair value of intangibles		$ 13,000
Weighted amortization period for intangible assets		4 years
Fortemedia \| Customer Relationships
Business Acquisition [Line Items]
Fair value of intangibles		$ 6,000
Weighted amortization period for intangible assets		1 year
Fortemedia \| Selling, General and Administrative
Business Acquisition [Line Items]
Acquisition costs		$ 1,100

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease expense	$ 14,508	$ 14,407	$ 13,066
Finance lease expense:
Amortization of assets	28	29	32
Interest on lease liabilities	4	4	3
Short-term lease expense	2,313	2,260	1,899
Variable lease expense	4,858	4,893	4,350
Total lease expense	$ 21,711	$ 21,593	$ 19,350

Fair Value Measurements

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 3 – Fair Value Measurements

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

We use valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities. The income approach uses valuation techniques to convert future amounts, such as cash flows or earnings, to a single present amount on a discounted basis. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement costs). Valuation techniques should be consistently applied. Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability. Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. These two types of inputs create a three-tier fair value hierarchy that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level 1 Inputs - Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

Level 2 Inputs - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3 Inputs - Significant unobservable inputs that reflect an entity’s own assumptions that market participants would use in pricing the assets or liabilities.

As of December 31, 2025, we had short-term and long-term investments. Long-term investments are included with Other long-term assets on the consolidated balance sheet. Trading securities held at December 31, 2025, were purchased on the open market and unrealized gains and losses are included in Other income (expense). The trading securities are valued under the fair value hierarchy using Level 1 Inputs. Short-term investments consist of investments such as time deposits, which are highly liquid with maturity dates greater than three months at the date of purchase. Generally, we can access these short-term investments in a relatively short amount of time but in doing so we generally forfeit a portion of earned and future interest income. Long-term investments consist of certain equity securities acquired as part of the LSC acquisition. Deferred compensation investments consist primarily of life insurance policies, but may also include investments in the Company’s stock, mutual funds and cash. See Note 13 for additional information related to our deferred compensation program and Note 18 for additional information related to our interest rate swaps and foreign currency hedges. The short-term investments, long-term investments and deferred compensation investments are valued under the fair value hierarchy using Level 1 and Level 2 Inputs.

Financial assets and liabilities carried at fair value as of December 31, 2025, are classified in the following table:


Description	Fair Market Value			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Changes in Fair Values Included in Current Period Earnings
Short-term investments	$	9,817		$	9,817	$	-		$	-	$	-
Long-term investments		20,574			20,574		-			-		(4,754	)
Collard forward asset		11,454			-		11,454			-		-
Collard forward liability		(2,558	)		-		(2,558	)		-		-
Deferred compensation investments		19,959			1,196		18,763			-		2,244

Financial assets and liabilities carried at fair value as of December 31, 2024 are classified in the following table:


Description	Fair Market Value			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Changes in Fair Values Included in Current Period Earnings
Short-term investments	$	7,464		$	7,464	$	-		$	-	$	-
Long-term investments		23,933			23,933		-			-		(42	)
Collard forward asset		593			-		593			-		-
Collard forward liability		(8,071	)		-		(8,071	)		-		-
Deferred compensation investments		17,173			4,397		12,776			-		1,769

Certain financial assets and financial liabilities are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). We believe our long-term debt under our revolving credit facility approximates fair value and is valued under the fair value hierarchy using Level 2 Inputs. Financial assets and financial liabilities measured at fair value on a non-recurring basis were not significant at December 31, 2025 and 2024.

We also are responsible for a pension plan in the U.K. that holds investments carried at fair value. See Note 13 below for additional information related to these pension plan investments.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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-URI https://asc.fasb.org/1943274/2147482078/820-10-55-107

Reference 3: http://www.xbrl.org/2003/role/exampleRef
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-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 6A
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Name Accounting Standards Codification
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-Paragraph 6A
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Name Accounting Standards Codification
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-Subparagraph (e)
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 940
-SubTopic 820
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478119/940-820-50-1

+ Details

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
U.S.	$ 24,306	$ (46,195)	$ 172,781
Foreign	59,653	108,877	105,152
Income before income taxes and noncontrolling interest	83,959	62,682	277,933
Current tax provision (benefit)
Federal	2,751	1,684	27,028
Foreign	16,420	41,052	34,408
State	(17)	123	54
Current tax provision (benefit), Total	19,154	42,859	61,490
Deferred tax provision (benefit)
Federal	1,439	(7,862)	(8,273)
Foreign	(2,449)	(13,867)	(10,463)
State	(127)	0	(5)
Deferred Income Tax Expense (Benefit), Total	(1,137)	(21,729)	(18,741)
Tax (benefit) provision for unrecognized tax benefits	(3,228)	(9,290)	4,536
Total income tax provision	$ 14,789	$ 11,840	$ 47,285

Intangible Assets

12 Months Ended

Dec. 31, 2025

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

Note 6 – Intangible Assets

Intangible assets at December 31 were as follows:


December 31, 2025
Intangible Assets	Useful life	Gross Carrying Amount		Accumulated Amortization			Currency Exchange			Net
Amortized intangible assets
Patents	5-15 years	$	16,037	$	(16,211	)	$	418		$	244
Developed product technology	2-10 years		182,499		(147,422	)		(7,081	)		27,996
Customer relationships	7-12 years		69,718		(60,234	)		(1,641	)		7,843
Software license and other	3-4 years		2,743		(2,677	)		(66	)		-
Total amortized intangible assets			270,997		(226,544	)		(8,370	)		36,083
Intangible assets with indefinite lives
Trademarks and trade names	Indefinite		10,303		-			(931	)		9,372
Total Intangible assets with indefinite lives			10,303		-			(931	)		9,372
Total intangible assets		$	281,300	$	(226,544	)	$	(9,301	)	$	45,455

December 31, 2024
Intangible Assets	Useful life	Gross Carrying Amount		Accumulated Amortization			Currency Exchange			Net
Amortized intangible assets
Patents	5-15 years	$	16,040	$	(15,954	)	$	404		$	490
Developed product technology	2-10 years		182,499		(134,123	)		(7,146	)		41,230
Customer relationships	7-12 years		69,718		(51,563	)		(1,699	)		16,456
Software license and other	3-4 years		2,743		(2,677	)		(66	)		-
Total amortized intangible assets			271,000		(204,317	)		(8,507	)		58,176
Intangible assets with indefinite lives
Trademarks and trade names	Indefinite		10,303		-			(1,082	)		9,221
Total Intangible assets with indefinite lives			10,303		-			(1,082	)		9,221
Total intangible assets		$	281,303	$	(204,317	)	$	(9,589	)	$	67,397

Amortization expense related to intangible assets subject to amortization was $22.2 million, $16.5 million, and $15.3 million for the twelve months ended December 31, 2025, 2024, and 2023, respectively. In process research and development is transferred to amortized intangible assets at the time the product becomes viable.

The weighted amortization period for intangible assets subject to amortization is 9.4 years. The schedule below sets forth future amortization expense of our currently owned intangible assets:


2026	$	15,660
2027		14,671
2028		3,673
2029		642
2030		558
2031 and thereafter		879
Total	$	36,083

Cybersecurity Risk Management, Strategy and Governance	12 Months Ended
Cybersecurity Risk Management, Strategy and Governance	Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Item 1C. Cybersecurity Governance Cybersecurity risk oversight continues to remain a top priority for the Board of Directors. The Board of Directors is responsible for oversight of the Company’s information security program, including risks of cybersecurity threats. The Risk Oversight Committee and Audit Committee, which support the Board of Directors in the oversight of the Company’s information security program are focused on risks from cybersecurity threats, including incident response planning, timely identification and assessment of incidents, incident recovery, and business continuity considerations. The Risk Oversight Committee members have varied expertise and experience including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. The Risk Oversight Committee has delegated day-to-day oversight of our information security program to our executive officers, the Vice President of Information Technology (“VP of IT”), and our Global Cybersecurity Defense Office(the “CDO”) team. The VP of IT reports to our President and Chief Executive Officer and is a 40 year veteran of the information technology industry. The VP of IT regularly meets with our President and Chief Executive Officer to inform him of matters related to cybersecurity risks and incidents. These meetings are designed to ensure that the highest levels of management are kept abreast of the cybersecurity posture and potential risks facing the Company. Furthermore, significant known cybersecurity matters and strategic risk management decisions are escalated to the Board of Directors, ensuring that the Board of Directors has oversight and can provide guidance on critical cybersecurity issues. We believe our information security team is well positioned to identify risks from cybersecurity threats based on numerous job qualifications and on-going training. Our incident response team, headed by the VP of IT and CDO, reports material cybersecurity incidents to our executive officers and to our Board of Directors. The Company also has an information security advisory board comprised of senior leaders within the Company. These senior leaders include representation from functions including product line, sales and marketing, manufacturing, legal, finance, human resources, supply chain, information technology, and regional representation. Responsibilities of the advisory board include: • advise on creation and implementation of information security policy; • advise on information security strategic roadmap and investments; • review, advise, and promote security education, training, and awareness; • review and advise on ongoing legal, regulatory, compliance, threat landscape, risks, industry news, and trends concerning cyber security; and • review and advise on the mitigation of cybersecurity risks and potential incidents. The Company has internal disclosure committees made up of members of management to assist in fulfilling its obligations to maintain disclosure controls and procedures and to coordinate and oversee the process of preparing our periodic securities filings with the SEC. The disclosure committees are composed of members of management and is chaired by our Vice President and Corporate Controller. The disclosure committees meet on a quarterly basis and more often if necessary. The Company has policies and procedures in place to ensure that our disclosure committees are appropriately informed of any matters that should be considered in advance of applicable public filings, including cybersecurity and data privacy matters, and to address the proper handling and escalation of information to management and the Board of Directors, the Risk Oversight Committee, and/or the Audit Committee. Management provides cybersecurity-related legal, regulatory, compliance, risk, and relevant industry and internal threat updates to the Board of Directors on a quarterly basis, or more frequently as needed. The reports provide information regarding the state of the Company’s information security program, the nature, timing, and extent of cybersecurity incidents, if any, and the Company’s resolution to such matters. The VP of IT has a monthly meeting with the Company’s Chief Executive Officer to provide an update of cybersecurity incidents and risks, irrespective of materiality. The Company’s Board of Directors is provided a quarterly update on cybersecurity roadmaps and progress. Risk Management and Strategy The Company has a robust cybersecurity program that has direct involvement from the Board of Directors and senior management. Our business operations and relationships with customers and suppliers are heavily reliant on technology, and any failure or disruption in our technological systems could have significant negative impacts on our business. Protecting information, including information of our customers, is a top priority. To assess, identify, and manage the risks of cybersecurity threats to our information systems and the associated costs, we maintain a cybersecurity program that: • defines cybersecurity risks that threaten the security of customer and employee data or the function of our products and services; • identify security vulnerabilities across software and hardware environments; • determine threat likelihood and potential severity of each risk; • catalog information assets to include hardware, software, and types of data the Company collects, stores, and transmits, as well as the locations where the data is stored; • assess the risk to business operations and information protection; • analyze the risk and prioritize based on financial, operational, strategic, reputational impact, and probability of occurrence; • establish security controls to eliminate or mitigate identified risks; • monitor and periodically review security controls; and • collaborate with HR for employee awareness and training. Specifically, our information security program establishes and maintains our corporate-wide cybersecurity program and provides guidance and direction for information security activities and controls at Diodes. Through our cybersecurity program, we monitor the environment for incidents, classify the activity, and escalate incidents according to Company procedures. Incidents classified to a level that may significantly impact the Company are escalated to management for monitoring and action if necessary. The Company also maintains an appropriate system of hygiene for internal and external systems through accepted information technology practices such as patching, security monitoring, capacity management, availability monitoring, and third-party vulnerability scanning. Our VP of IT oversees and manages the Company’s cybersecurity risk monitoring and mitigation processes and regularly collaborates with other departments, including business units and the information technology department, as necessary, to facilitate the risk monitoring and mitigation processes and to ensure the policies and procedures for our information security program are integrated into our overall risk management assessment. The information security team performs a bi-annual third-party assessment using industry standard frameworks of our information security program. Results are shared with the Company's management and with the Board of Directors. We have defined policies and procedures for cybersecurity incident detection, containment, response, and remediation and have adopted physical, technological, and administrative cybersecurity and data privacy controls. In particular, the Company has established a cybersecurity incident response plan includes classification of cybersecurity incidents, to whom to escalate an incident, and when to escalate a cybersecurity incident, including direct communication to the VP of IT and our President and Chief Executive Officer. The Company regularly conducts vulnerability assessments and tracks remediation to completion. Critical systems are periodically audited against industry standards. To minimize our risk and exposure to material cybersecurity incidents, we also conduct company-wide annual and ongoing cybersecurity awareness training and education of our employees. This includes but not limited to topics such password hygiene, phishing, and other cybersecurity-related information. In addition to performing an annual risk assessment and developing a detection and mitigation plan, along with a comprehensive review and update of our cybersecurity and data privacy policies and procedures, we continuously evaluate new and emerging risks and ever-changing legal and compliance requirements. Our comprehensive information security program includes agreements with third-party cybersecurity partners for continuous monitoring, alerting, and response. To supplement our cybersecurity and data privacy risk assessment, identification, management, and mitigation efforts, we regularly consult with third-party experts, which include the following services: • conduct annual cybersecurity and data privacy risk assessments; • conduct external and internal penetration tests; • monitor critical infrastructure for abnormal behavior; and • provide validation of the Company’s cybersecurity and operations processes against the National Institute of Standards and Technology cybersecurity framework. Impact of cybersecurity risks on business strategy, results of operations or financial condition Cybersecurity threats, such as threats of attacks from computer hackers, cyber criminals, nation-State actors, and other malicious internet-based activity, continue to increase. Cybersecurity threats may also include threats of attacks involving social engineering and cyber extortion to induce customers, contractors, business partners, third-party service providers, employees, and other third parties to disclose information, transfer funds, or unwittingly provide access to systems or data. We believe that our current preventative actions and response activities provide adequate measures of protection against security breaches and generally reduce our cybersecurity risks. However, cybersecurity threats are constantly evolving, are becoming more frequent and more sophisticated, and are being made by groups of individuals with a wide range of expertise and motives, which increases the difficulty of detecting and successfully defending against them. While we have implemented measures to safeguard our operational and technology systems and have established a culture of continuous learning, monitoring, and improvement, the evolving nature of cybersecurity attacks and vulnerabilities means that these protections may not always be effective. However, to date, management has determined that none of the cybersecurity attacks the Company experienced have resulted in a material impact to its financial condition, results of operations, or business strategy. In the ordinary course of our business, we have experienced and expect to continue to experience cyber-based attacks and other attempts to compromise our information systems, although none, to our knowledge, has had a material adverse effect on our business, financial condition, or results of operations. While we do not believe cybersecurity threats are reasonably likely to affect us, our business strategy, our results of operations, or our financial conditions, like all technology companies, we face a risks of such threats, the consequences of which could be material. See Item 1A – Risk Factors – “System security risks, data protection breaches, cyber-attacks and other related cybersecurity issues could disrupt our internal operations, and any such disruption could reduce our expected net sales, increase our expenses, damage our reputation, and adversely affect our stock price,” above. In addition, given the constant and evolving threat of cyber-based attacks, we incur significant costs in an effort to detect and prevent security breaches and incidents, and these costs may increase in the future.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Our VP of IT oversees and manages the Company’s cybersecurity risk monitoring and mitigation processes and regularly collaborates with other departments, including business units and the information technology department, as necessary, to facilitate the risk monitoring and mitigation processes and to ensure the policies and procedures for our information security program are integrated into our overall risk management assessment. The information security team performs a bi-annual third-party assessment using industry standard frameworks of our information security program. Results are shared with the Company's management and with the Board of Directors.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Cybersecurity risk oversight continues to remain a top priority for the Board of Directors. The Board of Directors is responsible for oversight of the Company’s information security program, including risks of cybersecurity threats. The Risk Oversight Committee and Audit Committee, which support the Board of Directors in the oversight of the Company’s information security program are focused on risks from cybersecurity threats, including incident response planning, timely identification and assessment of incidents, incident recovery, and business continuity considerations. The Risk Oversight Committee members have varied expertise and experience including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. The Risk Oversight Committee has delegated day-to-day oversight of our information security program to our executive officers, the Vice President of Information Technology (“VP of IT”), and our Global Cybersecurity Defense Office(the “CDO”) team. The VP of IT reports to our President and Chief Executive Officer and is a 40 year veteran of the information technology industry. The VP of IT regularly meets with our President and Chief Executive Officer to inform him of matters related to cybersecurity risks and incidents. These meetings are designed to ensure that the highest levels of management are kept abreast of the cybersecurity posture and potential risks facing the Company. Furthermore, significant known cybersecurity matters and strategic risk management decisions are escalated to the Board of Directors, ensuring that the Board of Directors has oversight and can provide guidance on critical cybersecurity issues. We believe our information security team is well positioned to identify risks from cybersecurity threats based on numerous job qualifications and on-going training. Our incident response team, headed by the VP of IT and CDO, reports material cybersecurity incidents to our executive officers and to our Board of Directors. The Company also has an information security advisory board comprised of senior leaders within the Company. These senior leaders include representation from functions including product line, sales and marketing, manufacturing, legal, finance, human resources, supply chain, information technology, and regional representation. Responsibilities of the advisory board include: • advise on creation and implementation of information security policy; • advise on information security strategic roadmap and investments; • review, advise, and promote security education, training, and awareness; • review and advise on ongoing legal, regulatory, compliance, threat landscape, risks, industry news, and trends concerning cyber security; and • review and advise on the mitigation of cybersecurity risks and potential incidents. The Company has internal disclosure committees made up of members of management to assist in fulfilling its obligations to maintain disclosure controls and procedures and to coordinate and oversee the process of preparing our periodic securities filings with the SEC. The disclosure committees are composed of members of management and is chaired by our Vice President and Corporate Controller. The disclosure committees meet on a quarterly basis and more often if necessary. The Company has policies and procedures in place to ensure that our disclosure committees are appropriately informed of any matters that should be considered in advance of applicable public filings, including cybersecurity and data privacy matters, and to address the proper handling and escalation of information to management and the Board of Directors, the Risk Oversight Committee, and/or the Audit Committee. Management provides cybersecurity-related legal, regulatory, compliance, risk, and relevant industry and internal threat updates to the Board of Directors on a quarterly basis, or more frequently as needed. The reports provide information regarding the state of the Company’s information security program, the nature, timing, and extent of cybersecurity incidents, if any, and the Company’s resolution to such matters. The VP of IT has a monthly meeting with the Company’s Chief Executive Officer to provide an update of cybersecurity incidents and risks, irrespective of materiality. The Company’s Board of Directors is provided a quarterly update on cybersecurity roadmaps and progress.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Risk Oversight Committee and Audit Committee, which support the Board of Directors in the oversight of the Company’s information security program are focused on risks from cybersecurity threats, including incident response planning, timely identification and assessment of incidents, incident recovery, and business continuity considerations.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	Management provides cybersecurity-related legal, regulatory, compliance, risk, and relevant industry and internal threat updates to the Board of Directors on a quarterly basis, or more frequently as needed. The reports provide information regarding the state of the Company’s information security program, the nature, timing, and extent of cybersecurity incidents, if any, and the Company’s resolution to such matters. The VP of IT has a monthly meeting with the Company’s Chief Executive Officer to provide an update of cybersecurity incidents and risks, irrespective of materiality. The Company’s Board of Directors is provided a quarterly update on cybersecurity roadmaps and progress.
Cybersecurity Risk Role of Management [Text Block]	Cybersecurity risk oversight continues to remain a top priority for the Board of Directors. The Board of Directors is responsible for oversight of the Company’s information security program, including risks of cybersecurity threats. The Risk Oversight Committee and Audit Committee, which support the Board of Directors in the oversight of the Company’s information security program are focused on risks from cybersecurity threats, including incident response planning, timely identification and assessment of incidents, incident recovery, and business continuity considerations. The Risk Oversight Committee members have varied expertise and experience including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. The Risk Oversight Committee has delegated day-to-day oversight of our information security program to our executive officers, the Vice President of Information Technology (“VP of IT”), and our Global Cybersecurity Defense Office(the “CDO”) team. The VP of IT reports to our President and Chief Executive Officer and is a 40 year veteran of the information technology industry. The VP of IT regularly meets with our President and Chief Executive Officer to inform him of matters related to cybersecurity risks and incidents. These meetings are designed to ensure that the highest levels of management are kept abreast of the cybersecurity posture and potential risks facing the Company. Furthermore, significant known cybersecurity matters and strategic risk management decisions are escalated to the Board of Directors, ensuring that the Board of Directors has oversight and can provide guidance on critical cybersecurity issues. We believe our information security team is well positioned to identify risks from cybersecurity threats based on numerous job qualifications and on-going training.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Cybersecurity risk oversight continues to remain a top priority for the Board of Directors. The Board of Directors is responsible for oversight of the Company’s information security program, including risks of cybersecurity threats. The Risk Oversight Committee and Audit Committee, which support the Board of Directors in the oversight of the Company’s information security program are focused on risks from cybersecurity threats, including incident response planning, timely identification and assessment of incidents, incident recovery, and business continuity considerations. The Risk Oversight Committee members have varied expertise and experience including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively. The Risk Oversight Committee has delegated day-to-day oversight of our information security program to our executive officers, the Vice President of Information Technology (“VP of IT”), and our Global Cybersecurity Defense Office(the “CDO”) team.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	The VP of IT reports to our President and Chief Executive Officer and is a 40 year veteran of the information technology industry.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Our VP of IT oversees and manages the Company’s cybersecurity risk monitoring and mitigation processes and regularly collaborates with other departments, including business units and the information technology department, as necessary, to facilitate the risk monitoring and mitigation processes and to ensure the policies and procedures for our information security program are integrated into our overall risk management assessment. The information security team performs a bi-annual third-party assessment using industry standard frameworks of our information security program. Results are shared with the Company's management and with the Board of Directors. We have defined policies and procedures for cybersecurity incident detection, containment, response, and remediation and have adopted physical, technological, and administrative cybersecurity and data privacy controls. In particular, the Company has established a cybersecurity incident response plan includes classification of cybersecurity incidents, to whom to escalate an incident, and when to escalate a cybersecurity incident, including direct communication to the VP of IT and our President and Chief Executive Officer.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Employee Benefit Plans

12 Months Ended

Dec. 31, 2025

Retirement Benefits [Abstract]

Employee Benefit Plans

Note 13 – Employee Benefit Plans

Defined Benefit Plan

We have a contributory defined benefit plan that covers certain employees in the U.K. The defined benefit plan is closed to new entrants and frozen with respect to future benefit accruals. The retirement benefit is based on the final average compensation and service of each eligible employee. We determined the fair value of the defined benefit plan assets and utilize an annual measurement date of December 31. At subsequent measurement dates, defined benefit plan assets will be determined based on fair value. Defined benefit plan assets consist of a diverse range of listed and unlisted securities including corporate bonds and mutual funds and are denominated in the currency in which the benefits will be paid and that have terms to maturity approximating the terms of the related pension liability. The net pension and supplemental retirement benefit obligations and the related periodic costs are based on, among other things, assumptions of the discount rate, estimated return on plan assets and mortality rates. These obligations and related periodic costs are measured using actuarial techniques and assumptions. The projected unit credit method is the actuarial cost method used to compute the pension liabilities and related expenses. All unrecognized actuarial gains and losses, prior service costs and accumulated other comprehensive income are eliminated and the balance sheet liability is set equal to the funded status of the defined benefit plan at acquisition date.

The table below sets forth net periodic benefit costs of the plan for the twelve months ended December 31:


	Defined Benefit Plan
	2025			2024
Components of net periodic benefit cost:
Service cost	$	395		$	383
Interest cost		5,282			4,664
Recognized actuarial gain		(5,619	)		3,708
Expected return on plan assets		3,878			(5,920	)
Prior service cost		68			66
Net periodic benefit cost	$	4,004		$	2,901

The table below sets forth the benefit obligation, the fair value of plan assets, and the funded status as of December 31:


	Defined Benefit Plan
	2025			2024
Change in benefit obligation:
Beginning balance	$	95,572		$	108,108
Service cost		395			383
Interest cost		5,282			4,664
Actuarial (gain) loss		(3,621	)		(10,605	)
Benefits paid		(5,990	)		(5,284	)
Currency changes		6,946			(1,694	)
Benefit obligation at December 31	$	98,584		$	95,572

Change in plan assets:
Beginning balance - fair value		88,289		$	98,016
Employer contribution		5,506			2,939
Actual return on plan assets		3,029			(5,813	)
Benefits paid		(5,990	)		(5,284	)
Currency changes		6,547			(1,569	)
Fair value of plan assets at December 31	$	97,381		$	88,289
Underfunded status at December 31	$	(1,203	)	$	(7,283	)

Based on an actuarial study performed as of December 31, 2025, the plan was underfunded by approximately $1.2 million and the liability is reflected in our consolidated balance sheets as a noncurrent liability and the amount recognized in accumulated other comprehensive loss was approximately $33.4 million.

We apply the “10% corridor” approach to amortize unrecognized actuarial gains (losses). Under this approach, only actuarial gains (losses) that exceed 10% of the greater of the projected benefit obligation or the market-related value of the plan assets are amortized. For the twelve months ended December 31, 2025, the plan’s accumulated other comprehensive income increased by approximately $7.5 million. The variance between the actual and expected return on plan assets during the period decreased the accumulated other comprehensive income by $0.1 million. The total unrecognized net loss is more than 10% of the projected benefit

obligation and 10% of the plan assets. Therefore, the excess amount will be amortized over the average term to retirement of plan participants, not yet in receipt of pension, which as of December 31, 2025, was approximately 6.0 years. The following weighted-average assumptions were used to determine net periodic benefit costs for the twelve months ended December 31:


	2025	2024
Discount rate	5.5%	4.4%
Expected long-term return on plan assets	5.6%	6.2%

The following weighted-average assumption was used to determine the benefit obligations at December 31:


	2025	2024
Discount rate	5.5%	5.4%

The expected long-term return on plan assets was determined based on historical and expected future returns of the various asset classes. The plan’s investment policy includes a mandate to diversify assets and invest in a variety of asset classes to achieve its expected long-term return and is currently invested in a variety of funds representing most standard equity and debt security classes. Trustees of the plan may make changes at any time.

The table below sets forth the plan asset allocations of the assets in the plan and expected long-term return by asset category:


Asset category	Expected long-term return	Asset allocation
Growth assets	6.6%	48%
Hedging assets	5.0%	34%
Cash	3.8%	18%

The defined benefit plan’s investment strategy is to invest 65% in growth strategy assets and 35% in hedging strategy assets. The growth strategy consists of a highly diversified set of assets, and the hedging component is designed to hedge a significant proportion of the plan’s interest and inflation rate risks. The overall strategy is designed to return a long-term return of 2.6% p.a. above the liability benchmark which is broadly equal to changes in the plan’s liabilities.

Benefit plan payments are primarily made from funded benefit plan trusts and current assets. The table below sets forth the expected future benefit payments, including future benefit accrual, as of December 31, 2025:


2026	$	6,527
2027		6,230
2028		6,341
2029		6,327
2030		6,652
2031-2035		33,962

The trustees are required to review the funding position every three years. An actuarial valuation was performed as of March 31, 2022, resulting in a deficit of approximately GBP 20 million (approximately $26 million based on a GBP: USD exchange rate of 1:1.3). As a result of this valuation we have agreed to a revised schedule of contributions of GBP 2.0 million (approximately $2.6 million based on a GBP: USD exchange rate of 1:1.3) to be paid annually with effect from January 1, 2023 to address the deficit revealed by the valuation (with the first payment made by December 31, 2023 through December 31, 2028). A final payment of GBP 1.5 million (approximately $2.0 million based on a GBP: USD rate of 1:1.3) will be made by December 31, 2029. These contributions, together with the assumed asset outperformance, are expected to eliminate the deficit by December 31, 2029.

The plan’s trustees appoint fund managers to carry out all the day-to-day functions relating to the management of the fund and its administration. The fund managers must invest their portion of the plan’s assets in accordance with their investment manager agreement agreed by the trustees. The trustees are responsible for agreeing these investment manager agreements and for deciding on the portion of the plan’s assets that will be invested with each fund manager. When making decisions, the trustees take advice from experts including the plan’s actuary and also have the option to consult with the Company.

The following table summarizes the major categories of the plan assets:


	December 31, 2025
Asset category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	12,523	$	-	$	-	$	12,523
Equity securities:
U.K.		-		531		-		531
Overseas equities		-		14,091		-		14,091
Emerging markets		-		2,579		-		2,579
Fixed income securities:
Government bonds		-		43		-		43
Non-government bonds		-		8,619		-		8,619
Other types of investments
Hedge funds		-		18,558		-		18,558
Liability-driven investments		-		35,389		-		35,389
Commodities		-		947		-		947
Other		-		4,101		-		4,101
Total	$	12,523	$	84,858	$	-	$	97,381


	December 31, 2024
Asset category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	5,736	$	-	$	-	$	5,736
Equity securities:
U.K.		-		527		-		527
Overseas equities		-		13,227		-		13,227
Emerging markets		-		2,070		-		2,070
Fixed income securities:
Government bonds		-		78		-		78
Non-government bonds		-		15,569		-		15,569
Other types of investments
Hedge funds		-		15,983		-		15,983
Liability-driven investments		-		31,492		-		31,492
Commodities		-		795		-		795
Other		-		2,812		-		2,812
Total	$	5,736	$	82,553	$	-	$	88,289

Fair value is taken to mean the bid value of securities, as supplied by the fund managers. All the plan’s securities are highly liquid. The plan does not hold any Level 3 securities. See Note 3 for additional information regarding fair value and Levels 1, 2, and 3.

The investment manager agreements require the fund managers to invest in a diverse range of stocks and bonds across each particular asset class. The stocks held by the plan in a particular asset class should therefore match closely the underlying stocks in the relevant index. We believe that this leads to minimal concentration of risk within each asset class; although we recognize that some asset classes are inherently more risky than others.

We also have pension plans in Asia for which the benefit obligation, fair value of the plan assets and the funded status amounts are immaterial and therefore, not included in the amounts or assumptions above. As of December 31, 2025 and 2024, the Company has recorded a net liability of $0.8 million and $1.1 million, respectively, related to these defined benefit plans in Asia.

401(k) Retirement Plan

We maintain a 401(k) retirement plan (the “Plan”) for the benefit of qualified employees at our U.S. locations. Employees who participate may elect to make salary deferral contributions to the Plan up to 100% of the employees’ eligible payroll subject to annual Internal Revenue Code maximum limitations. We currently make a matching contribution of $1 for every $2 contributed by the participant up to 6% (3% maximum matching) of the participant’s eligible payroll, which vests over an initial four years. In addition, we may make a discretionary contribution to the entire qualified employee pool, in accordance with the Plan.

As stipulated by the regulations of China, we maintain a retirement plan pursuant to the local municipal government for the employees in China and are required to make contributions of 8% of the employee’s eligible payroll. Pursuant to the Taiwan Labor Standard Law and Factory Law, we maintain a retirement plan for the employees in Taiwan, whereby we make contributions at a rate of 6% of the employee’s eligible payroll.

For the twelve months ended December 31, 2025, 2024, and 2023, total amounts expensed under these plans were approximately $21.4 million, $22.2 million, and $22.3 million, respectively.

Deferred Compensation Plan

We maintain a Non-Qualified Deferred Compensation Plan (the “Deferred Compensation Plan”) for executive officers, key employees and members of the Board of Directors. The Deferred Compensation Plan allows eligible participants to defer the receipt of eligible compensation, including equity awards, until designated future dates. We offset our obligations under the Deferred Compensation Plan primarily by investing in the actual underlying investments. At December 31, 2025 and December 31, 2024, these investments totaled approximately $20.0 million and $17.2 million, respectively.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Share-Based Compensation - Schedule of Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation expense	$ 25,745	$ 22,767	$ 30,911
Cost of Goods Sold
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation expense	2,224	2,073	1,860
Selling, General and Administrative Expense
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation expense	18,491	15,690	24,470
Research and Development Expense
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation expense	$ 5,030	$ 5,004	$ 4,581

Earnings per Share - Additional Information (Details)	12 Months Ended
Earnings per Share - Additional Information (Details)	Dec. 31, 2025
Earnings Per Share [Abstract]
Earnings per share reconciliation disclosure	Basic earnings per share is calculated by dividing net earnings attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is calculated similarly but includes potential dilution from the exercise of stock options and stock awards, except when the effect would be anti-dilutive.

Goodwill (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

Changes in goodwill for the twelve months ended December 31, were as follows:


Balance at December 31, 2023	$	146,558
Acquisitions		37,482
Foreign currency translation adjustment		(2,485	)
Balance at December 31, 2024		181,555
Acquisitions		1,171
Disposal		(2,942	)
Foreign currency translation adjustment		3,653
Balance at December 31, 2025	$	183,437

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

Goodwill - Schedule of Changes in Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Goodwill
Goodwill beginning balance	$ 181,555	$ 146,558
Acquisitions	1,171	37,482
Disposal	(2,942)
Foreign currency translation adjustment	3,653	(2,485)
Goodwill ending balance	$ 183,437	$ 181,555

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net income	$ 69,170	$ 50,842	$ 230,648
Unrealized gain (loss) on defined benefit plan, net of tax	6,609	5,988	(1,466)
Unrealized (loss) gain on swaps and collars, net of tax	(7,240)	2,388	(13,619)
Unrealized foreign currency gain (loss), net of tax	36,608	(11,873)	91
Comprehensive income	105,147	47,345	215,654
Less: Comprehensive income attributable to noncontrolling interest	(3,029)	(6,818)	(3,466)
Total comprehensive income attributable to common stockholders	$ 102,118	$ 40,527	$ 212,188

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Segment Information, Revenue and Enterprise-Wide Disclosures - Schedule of Revenue from Major Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Customer 1
Segment Reporting Information [Line Items]
Net sales	182,314	167,242	201,583
Customer 2
Segment Reporting Information [Line Items]
Net sales	$ 157,735	$ 0	$ 183,626

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Equity Investments - Schedule of Variable Interest Entities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
VIE total assets	$ 2,448,100	$ 2,386,281	$ 2,367,659
VIE total liabilities	509,691	517,334
Diodes' note receivable from VIE	307,055	325,517
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
VIE total assets	39,620	20,273
VIE total liabilities	10,659	4,945
Diodes' preferred equity in VIE	90,035	44,420
Diodes' note receivable from VIE	9,000	4,000
Diodes' interest receivable from VIE	628	245
Diodes' maximum exposure to loss	$ 99,663	$ 48,665

- Definition

Amount of asset recognized for present right to economic benefit.

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Reference 32: http://www.xbrl.org/2003/role/exampleRef
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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Summary of Operations and Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Nature of operations

GENERAL

The Company operates form the following locations, with additional support offices throughout the world:

•

Corporate Headquarters
Plano, Texas, United States

•

Wafer Fabrication
Shanghai and Wuxi, China
Oldham, England
Greenock, Scotland
Hsinchu, Taiwan
South Portland, Maine, United States

•

Assembly and Test
Shanghai, Chengdu, and Wuxi, China
Neuhaus am Rennweg, Germany
Chongli, Taiwan

•

Our market focus is on high-growth, end-user applications in the following areas:

•

Automotive: connected driving, comfort/style/safety, electrification/powertrain;

•

Industrial: embedded systems, industrial automation, medical, energy management, smart buildings;

•

Computing: Artificial Intelligence (“AI”) data center including AI server, storage, and edge AI;

•

Consumer: Internet of things (“IoT”): wearables, home automation, home appliances, and charging solutions, and

•

Communications: smart phones, telecom, enterprise networking, smart infrastructure including space-based connectivity.

Principles of consolidation

Use of estimates

Revenue recognition

Product warranty

Product warranty – We generally warrant our products for a period of one year from the date of sale. Historically, warranty expense has not been material.

Cash, cash equivalents, and short-term investments

Allowance for doubtful accounts

Inventories

Property, plant and equipment

Leases

Segment Reporting

Goodwill and other indefinite lived intangible assets

Impairment of long-lived assets

Business combinations

For significant acquisitions we may use independent third-party valuation specialists to assist us in determining the fair value of assets acquired and liabilities assumed.

During the normal course of business the Company pursues acquisitions. See Note 20 for additional information regarding business acquisitions.

Equity investments

Equity investments – We regularly invest in equity securities of public and private companies to promote business and strategic objectives. Equity investments are measured and recorded as follows:

Variable interest entities

Income taxes

Research and development costs

Shipping and handling costs

Concentration of credit risk

Valuation of financial instruments

Share-based compensation

Treasury stock

Functional currencies and foreign currency translation

Defined benefit plan

Noncontrolling interest

Contingencies

Comprehensive income (loss)

The components and balance of comprehensive income is as follows:


	2025			2024			2023
Unrealized foreign currency losses	$	(38,436	)	$	(75,044	)	$	(63,171	)
Unrealized loss on cross currency and interest rate swaps, net of tax		(42,146	)		(34,906	)		(37,294	)
Unrealized loss on defined benefit plan		(30,165	)		(36,774	)		(42,762	)
Balance at December 31,	$	(110,747	)	$	(146,724	)	$	(143,227	)

Change in Accounting Estimate

Recently Issued Accounting Pronouncements

The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact to the Company’s financial statements:

It is probable that (a) a business entity will comply with the conditions attached to the grant and (b) the grant will be received.

A business entity meets the recognition guidance for a grant related to an asset or a grant related to income.

Deferred income (the deferred income approach)

An adjustment to the cost basis in determining the carrying amount of the asset (the cost accumulation approach).

•

Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and

•

Disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses.

Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Objectives for using derivative instruments	The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps, including interest rate collars, as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company makes use of collard foreign-exchange forward contracts to decrease the foreign exchange risk inherent in the Company’s investment in some of its foreign subsidiaries.
Foreign Currency Forward Contracts
Derivative [Line Items]
Fair value of foreign currency derivative instruments not designated as hedging	$ 345.2	$ 380.9

Bank Credit Agreements and Other Short-Term and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Schedule of Debt

Borrowings outstanding as of December 31, 2025 and December 31, 2024, are set forth in the table below:


	December 31,
Description	2025			2024			Interest Rate	Current Amount Maturity
Short-term debt	$	30,264		$	31,429		Various indices plus margin	Various during 2026

Long-term debt
Notes payable to Bank of Taiwan		1,479			1,593		2-yr deposit rate floating plus 0.1148%	June 2033
Notes payable to CTBC Bank		4,770			3,052		2-yr deposit rate floating plus 0.082%	October 2027
Notes payable to CTBC Bank		3,180			3,052		TAIBOR 3M plus 0.5%	March 2027
Notes payable to CTBC Bank		954			-		TAIBOR 3M plus 0.5%	April 2027
Notes payable to CTBC Bank		2,226			-		TAIBOR 3M plus 0.5%	April 2027
Notes payable to E Sun Bank		11,384			11,606		TAIBOR 3M plus 0.5%	May 2028
Notes payable to E Sun Bank		95			148		1-M deposit rate floating plus 0.08%	July 2027
Notes payable to E Sun Bank		918			1,064		1-M deposit rate floating plus 0.08%	July 2030
Notes payable to Taishin Bank		99			144		1 M time deposit rate + 1.4%	October 2027
Notes payable to Chang Hwa Bank		258			-		3M deposit rate floating plus 0.25%	January 2027
Notes payable to Chang Hwa Bank		32			-		2.22%	November 2030
Notes payable to Chang Hwa Bank		48			-		2.22%	December 2030
Notes payable to HSBC		223			-		2.22%	December 2030
Total long-term debt		25,666			20,659
Less: Current portion of long-term debt		(1,442	)		(1,096	)
Total long-term debt, net of current portion	$	24,224		$	19,563

Schedule of Maturities of Long Term Debt

The table below sets forth the annual contractual maturities of long-term debt at December 31, 2025:


2026	$	1,442
2027		12,407
2028		10,430
2029		550
2030		321
2031 and thereafter		516
Total long-term debt	$	25,666

Related Party Transactions - Schedule of Account Receivable and Payable of Related Party Transactions (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Keylink
Related Party Transaction [Line Items]
Accounts receivable	$ 25,415	$ 23,796
Accounts payable	27,837	26,522
Nuvoton
Related Party Transaction [Line Items]
Accounts receivable	9	31
Accounts payable	1,131	543
JCP
Related Party Transaction [Line Items]
Accounts payable	0	64
Atlas
Related Party Transaction [Line Items]
Accounts payable	721	558
ATX
Related Party Transaction [Line Items]
Accounts payable	$ 12	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Income Taxes - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Tax Credit Carryforward [Line Items]
Significant change in unrecognized tax benefits, nature of event	It is reasonably possible that the amount of the unrecognized benefit with respect to certain of our unrecognized tax positions will significantly increase or decrease within the next 12 months.
Significant change in unrecognized tax benefits is reasonably possible, estimated range not possible	These changes may be the result of settlements of ongoing audits or competent authority proceedings. At this time, an estimate of the range of the reasonably possible outcomes cannot be made.
Unrecognized tax benefits	$ 48,387	$ 44,391	$ 48,838	$ 48,072
Unrecognized tax benefits, if recognized, would affect the effective tax rate	$ 46,300
Income tax examination, description	We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. We are no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2022. We are no longer subject to China income tax examinations by tax authorities for tax years before 2014. With respect to state and local jurisdictions and countries outside of the U.S., with limited exceptions, we are no longer subject to income tax audits for years before 2019. Although the outcome of tax audits is always uncertain, we believe that adequate amounts of tax, interest and penalties, if any, have been provided for in our reserve for any adjustments that may result from future tax audits. We recognize accrued interest and penalties, if any, related to unrecognized tax benefits in interest expense. We had an immaterial amount of accrued interest and penalties at December 31, 2025, 2024, and 2023.
Net deferred tax assets	$ 81,920	64,766
Tax credit carryforward, valuation allowance	11,800	11,300
Operating loss carryforward [Abstract]
Operating loss carryforwards, valuation allowance	11,600	10,500
Income taxes supplemental information [Abstract]
Statutory accounting practices, retained earnings not available for dividends	112,700
Additional tax on undistributed foreign earnings	49,200
Deferred tax charge	900	1,600	0
Tax holidays	$ 1,300	$ 1,100	$ 700
Tax holidays basic EPS	$ 0.03	$ 0.02	$ 0.02
Tax holidays diluted EPS	$ 0.03	$ 0.02	$ 0.02
China
Income taxes supplemental information [Abstract]
Deferred tax liabilities, undistributed foreign earnings	$ 449,600
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Tax credit carryforward, expiration dates	Jan. 01, 2025
Operating loss carryforward [Abstract]
Operating loss carryforwards	$ 1,200
Operating loss carryforwards, expiration dates	Jan. 01, 2025
Foreign Tax Authority
Operating loss carryforward [Abstract]
Operating loss carryforwards	$ 274,000
Operating loss carryforwards, expiration dates	Jan. 01, 2025
Income taxes supplemental information [Abstract]
Deferred tax liabilities, undistributed foreign earnings	$ 1,300,000
Research \| Federal
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	1,600
Tax and Research \| State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	11,200
ASU No. 2013-11
Tax Credit Carryforward [Line Items]
Net deferred tax assets		$ 53,100
Deferred tax assets operating loss carryforwards	$ 28,800

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Summary of Land Right Leases

In addition, we have the following land right leases. None of the leases requires a rental payment.


	Term (years)	Expiration Date
Chengdu, China	50	2061
Shanghai, China*	50	2056
Shanghai, China*	50	2058
Shandong, China	50	2058
Yangzhou, China	50	2065

* Separate leases by separate Diodes’ subsidiaries

Acquisitions and Divestitures - Summary of Preliminary Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Oct. 31, 2024	Dec. 31, 2023
Estimated fair value of liabilities assumed:
Goodwill	$ 183,437	$ 181,555		$ 146,558
Fortemedia
Business Combination [Line Items]
Fair value of consideration transferred			$ 60,378
Estimated fair value of assets acquired:
Cash and cash equivalents			7,803
Accounts receivable			1,898
Inventories			1,845
Prepaid expenses and other current assets			1,852
Property, plant and equipment			5,388
Intangible assets			19,000
Other long-term assets			3,799
Total assets acquired			41,585
Estimated fair value of liabilities assumed:
Accounts payable			381
Accrued liabilities and other			7,437
Income tax payable			64
Deferred taxes			120
Other long-term liabilities			10,719
Total liabilities assumed			18,721
Net assets acquired			22,864
Goodwill			37,514
Fortemedia \| Preliminary Values
Business Combination [Line Items]
Fair value of consideration transferred			60,378
Estimated fair value of assets acquired:
Cash and cash equivalents			7,803
Accounts receivable			1,898
Inventories			1,845
Prepaid expenses and other current assets			2,324
Property, plant and equipment			5,388
Intangible assets			19,000
Other long-term assets			3,799
Total assets acquired			42,057
Estimated fair value of liabilities assumed:
Accounts payable			381
Accrued liabilities and other			7,437
Income tax payable			64
Deferred taxes			412
Other long-term liabilities			9,728
Total liabilities assumed			18,022
Net assets acquired			24,035
Goodwill			36,343
Fortemedia \| Adjustments Debit/(Credit)
Estimated fair value of assets acquired:
Prepaid expenses and other current assets			(472)
Total assets acquired			(472)
Estimated fair value of liabilities assumed:
Deferred taxes			292
Other long-term liabilities			(991)
Total liabilities assumed			(699)
Net assets acquired			(1,171)
Goodwill			$ 1,171

Dividends - Additional Information (Details) $ in Millions	12 Months Ended
Dividends - Additional Information (Details) $ in Millions	Dec. 31, 2025 USD ($)
Equity Class Of Treasury Stock [Line Items]
Other Restrictions on Payment of Dividends	Credit Facility permits us to pay dividends up to $75.0 million per fiscal year to its stockholders so long as we have not defaulted under the Credit Agreement at the time of such dividend and no default would result from declaring or paying such dividend.
Maximum annual dividend payable on credit facility conditions	$ 75.0

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 66,141	$ 44,024	$ 227,182

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A

Reference 37: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A

Reference 38: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 39: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 40: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 41: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 42: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 43: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 60B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B

Reference 44: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-7

Reference 45: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 46: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A

Reference 47: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
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-Name Accounting Standards Codification
-Section 45
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Reference 48: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 65
-Paragraph 4
-Subparagraph (f)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481538/470-20-65-4

Reference 49: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(22))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1

+ Details

Summary of Operations and Significant Accounting Policies - Component of Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized foreign currency losses	$ (38,436)	$ (75,044)	$ (63,171)
Unrealized loss on cross currency and interest rate swaps, net of tax	(42,146)	(34,906)	(37,294)
Unrealized loss on defined benefit plan	(30,165)	(36,774)	(42,762)
Balance at December 31	$ (110,747)	$ (146,724)	$ (143,227)

- Definition

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

+ References + Details

Bank Credit Agreements and Other Short-Term and Long-Term Debt

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Bank Credit Agreements and Other Short-Term and Long-Term Debt

Note 8 – Bank Credit Agreements and Other Short-term and Long-term Debt

Short-term debt

Our Asia subsidiaries maintain credit facilities with several financial institutions through our foreign entities worldwide totaling $150.3 million. Other than two Taiwanese credit facilities that are collateralized by assets, our foreign credit lines are unsecured, uncommitted and contain no restrictive covenants. These credit facilities bear interest at the Taipei Interbank Offered Rate (or similar indices plus a specified margin. Interest payments are due monthly on outstanding amounts under the credit lines. The unused and available credit under the various facilities as of December 31, 2025, was approximately $119.6 million, net of $30.3 million advanced under our foreign credit lines and $0.4 million credit used for import and export guarantee.

Long-term debt

The Company maintains a long-term credit facility (“Credit Agreement”). The Credit Agreement consists of a Revolving Credit Facility in the amount of $225.0 million, including a swing line sublimit equal to the lesser of $50.0 million and the Revolving Credit Facility, a letter of credit sublimit equal to the lesser of $100.0 million and the Revolving Credit Facility, and an alternative currency sublimit equal to the lesser of $40.0 million and the Revolving Credit Facility. The Company has the option to increase the Credit Facility and/or incur Incremental Term Loans in an aggregate principal amount of up to $350.0 million. The Credit Agreement bears interest at Term SOFR or similar other indices plus a specified margin and matures in May 2028. The Credit Agreement contains certain financial and non-financial covenants, including, but not limited to, a maximum Consolidated Leverage Ratio, a minimum Consolidated Interest Coverage Ratio, and restrictions on liens, indebtedness, investments, fundamental changes, dispositions, and restricted payments (including dividends and share repurchases). The Company is permitted to pay dividends up to $75.0 million per fiscal year to our stockholders so long as we have not defaulted at the time of such dividend and no default would result from declaring and paying such dividend. Furthermore, under the Credit Agreement, restricted payments, including dividends and share repurchases, are permitted in certain circumstances, including while the pro forma Consolidated Leverage Ratio is, both before and after giving effect to any such restricted payment, at least 0.25 to 1.00 less than the maximum permitted under the Credit Agreement. Certain capitalized terms used in this description of the Credit Agreement have the meanings given to them in the Credit Agreement, which is attached as Exhibit 10.1 to our Current Report on Form 8-K that we filed with the SEC on June 2, 2023. The Borrowers have the option to increase the Revolving Facility and/or incur Incremental Term Loans in an aggregate principal amount of up to $350.0 million.

Borrowings outstanding as of December 31, 2025 and December 31, 2024, are set forth in the table below:


	December 31,
Description	2025			2024			Interest Rate	Current Amount Maturity
Short-term debt	$	30,264		$	31,429		Various indices plus margin	Various during 2026

Long-term debt
Notes payable to Bank of Taiwan		1,479			1,593		2-yr deposit rate floating plus 0.1148%	June 2033
Notes payable to CTBC Bank		4,770			3,052		2-yr deposit rate floating plus 0.082%	October 2027
Notes payable to CTBC Bank		3,180			3,052		TAIBOR 3M plus 0.5%	March 2027
Notes payable to CTBC Bank		954			-		TAIBOR 3M plus 0.5%	April 2027
Notes payable to CTBC Bank		2,226			-		TAIBOR 3M plus 0.5%	April 2027
Notes payable to E Sun Bank		11,384			11,606		TAIBOR 3M plus 0.5%	May 2028
Notes payable to E Sun Bank		95			148		1-M deposit rate floating plus 0.08%	July 2027
Notes payable to E Sun Bank		918			1,064		1-M deposit rate floating plus 0.08%	July 2030
Notes payable to Taishin Bank		99			144		1 M time deposit rate + 1.4%	October 2027
Notes payable to Chang Hwa Bank		258			-		3M deposit rate floating plus 0.25%	January 2027
Notes payable to Chang Hwa Bank		32			-		2.22%	November 2030
Notes payable to Chang Hwa Bank		48			-		2.22%	December 2030
Notes payable to HSBC		223			-		2.22%	December 2030
Total long-term debt		25,666			20,659
Less: Current portion of long-term debt		(1,442	)		(1,096	)
Total long-term debt, net of current portion	$	24,224		$	19,563

The table below sets forth the annual contractual maturities of long-term debt at December 31, 2025:


2026	$	1,442
2027		12,407
2028		10,430
2029		550
2030		321
2031 and thereafter		516
Total long-term debt	$	25,666

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/470/tableOfContent

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1C

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1I

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
-Paragraph 1I
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1I

+ Details

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Cost of goods sold	1,019,637	875,258	1,003,557
Gross profit	462,436	435,862	658,182
Operating expenses
Selling, general and administrative	241,606	233,913	257,939
Research and development	162,175	134,051	134,868
Amortization of acquisition related intangible assets	22,227	16,499	15,282
Loss (gain) on disposal of fixed assets	572	(7,641)	(2,045)
Restructuring charge	394	8,591	1,583
Other operating income	0	(1)	(16)
Total operating expense	426,974	385,412	407,611
Income from operations	35,462	50,450	250,571
Other (expense) income
Interest income	28,304	18,303	13,338
Interest expense	(2,776)	(2,334)	(5,700)
Foreign currency loss, net	(12,818)	(6,308)	(5,264)
Unrealized gain (loss) on investments	28,561	(321)	18,267
Impairment of equity investment	(5,817)	0	0
Gain on disposal of subsidiary	13,730	0	0
Other (expense) income	(687)	2,892	6,721
Total other (expense) income	48,497	12,232	27,362
Income before income taxes and noncontrolling interest	83,959	62,682	277,933
Income tax provision	14,789	11,840	47,285
Net income	69,170	50,842	230,648
Less: net income attributable to noncontrolling interest	(3,029)	(6,818)	(3,466)
Net income attributable to common stockholders	$ 66,141	$ 44,024	$ 227,182
Earnings per share attributable to common stockholders:
Basic	$ 1.43	$ 0.95	$ 4.96
Diluted	$ 1.43	$ 0.95	$ 4.91
Number of shares used in earnings per share computation:
Basic	46,340	46,208	45,803
Diluted	46,414	46,408	46,311

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Financial Assets At Fair Value

Financial assets and liabilities carried at fair value as of December 31, 2025, are classified in the following table:


Description	Fair Market Value			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Changes in Fair Values Included in Current Period Earnings
Short-term investments	$	9,817		$	9,817	$	-		$	-	$	-
Long-term investments		20,574			20,574		-			-		(4,754	)
Collard forward asset		11,454			-		11,454			-		-
Collard forward liability		(2,558	)		-		(2,558	)		-		-
Deferred compensation investments		19,959			1,196		18,763			-		2,244

Financial assets and liabilities carried at fair value as of December 31, 2024 are classified in the following table:


Description	Fair Market Value			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Changes in Fair Values Included in Current Period Earnings
Short-term investments	$	7,464		$	7,464	$	-		$	-	$	-
Long-term investments		23,933			23,933		-			-		(42	)
Collard forward asset		593			-		593			-		-
Collard forward liability		(8,071	)		-		(8,071	)		-		-
Deferred compensation investments		17,173			4,397		12,776			-		1,769

Inventories

12 Months Ended

Dec. 31, 2025

Inventory Disclosure [Abstract]

Inventories

Note 4 – Inventories

Inventories, stated at the lower of cost or market value, at December 31 were:


	2025		2024
Finished goods	$	171,369	$	203,665
Work-in-progress		91,143		80,232
Raw materials		209,034		191,051
	$	471,546	$	474,948

Goodwill

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Note 7 – Goodwill

Changes in goodwill for the twelve months ended December 31, were as follows:


Balance at December 31, 2023	$	146,558
Acquisitions		37,482
Foreign currency translation adjustment		(2,485	)
Balance at December 31, 2024		181,555
Acquisitions		1,171
Disposal		(2,942	)
Foreign currency translation adjustment		3,653
Balance at December 31, 2025	$	183,437

- Definition

The entire disclosure for goodwill.

+ References + Details

Acquisitions and Divestitures

12 Months Ended

Dec. 31, 2025

Business Combination [Abstract]

Acquisitions and Divestitures

Note 20 – Acquisitions and Divestitures

TF Semiconductor Solutions, Inc. Agreement and Plan of Merger

On April 29, 2025, the Company entered into an agreement to sell its approximate 56.4% ownership stake in TF Semiconductor Solutions, Inc. to Microchip Technology Incorporated (“MCHP”) in exchange for shares of MCHP common stock at a value up to approximately $17.6 million, subject to earnout provisions, and certain closing adjustments. The transaction closed on May 8, 2025, resulting in a gain of $13.7 million.

Fortemedia acquisition

On October 31, 2024, the Company closed its acquisition of Fortemedia, Inc. (“Fortemedia”), a global company that focuses on developing high-quality solutions and semiconductor products that provide advanced voice processing technologies to enhance human-to-human and human-to-machine voice communication quality and efficiencies. The Company acquired Fortemedia to expand its product portfolio and enhance the Company’s footprint in advanced voice processing technologies, primarily targeted at the automotive and computer markets.

The Company acquired 100% of the outstanding interest of Fortemedia for a total aggregate purchase price of $60.4 million and total net consideration of $52.6 million after adjusting for cash acquired. The purchase price was funded with cash on hand. The Company incurred acquisition costs of approximately $1.1 million that were recognized in SG&A.

The acquisition was accounted for as a business combination in accordance with ASC 805, Business Combinations. Treatment as a business combination is based upon the following primary considerations: the counterparties in the transaction are not under common control with the Company, there is no concentration of substantially all the fair value of assets acquired in a single asset or group of similar assets, and Fortemedia had substantive processes that contributed to the ability to produce outputs, including an organized workforce which was acquired. During the fourth quarter of 2025, the Company finalized the purchase price allocation with adjustments to uncertain tax positions. The following table summarizes the preliminary purchase price allocation, the fourth quarter 2025 purchase price adjustments, and the final purchase price allocation:


		Preliminary Values		Adjustments Debit/(Credit)			Final Values
Fair value of consideration transferred	$		60,378				$	60,378

Estimated fair value of assets acquired:
Cash and cash equivalents			7,803		-			7,803
Accounts receivable			1,898		-			1,898
Inventories			1,845		-			1,845
Prepaid expenses and other current assets			2,324		(472	)		1,852
Property, plant, and equipment			5,388		-			5,388
Intangible assets			19,000		-			19,000
Other long-term assets			3,799		-			3,799
Total assets acquired			42,057		(472	)		41,585

Estimated fair value of liabilities assumed:
Accounts payable			381		-			381
Accrued liabilities and other			7,437		-			7,437
Income tax payable			64		-			64
Deferred taxes			412		292			120
Other long-term liabilities			9,728		(991	)		10,719
Total liabilities assumed			18,022		(699	)		18,721
Total identifiable net assets			24,035		(1,171	)		22,864
Goodwill			36,343		1,171			37,514
Fair value of consideration transferred	$		60,378				$	60,378

The excess of the total equity value of Fortemedia over net assets acquired was recorded as goodwill. The goodwill is primarily attributable to the synergies expected to arise after the acquisition. None of the goodwill is expected to be deductible for tax purposes.

The intangible assets acquired as a result of the acquisition consisted of developed technologies and customer relationships, both of which will be amortized over the remaining useful life. The fair value of developed technologies were valued using a Multi-Period Excess Earnings method. The Multi-Period Excess Earning method model estimates revenues and cash flows derived from the asset and then deducts portions of the cash flow that can be attributed to supporting assets. The fair value was determined to be $13.0 million and will be amortized over a four-year period. The customer relationships were valued using the With and Without method. The With and Without method calculates the value of an intangible asset by comparing the estimated value of a business with the asset in place to the

estimated value of the same business without the asset, with the difference representing the value of the asset itself. The fair value was determined to be $6.0 million and will be amortized over a one-year period.

The amounts of revenue and earnings of Fortemedia included in the Company’s consolidated statement of operations from the acquisition date to the period ending December 31, 2024 are as follows:


	November 1, 2024 to
	December 31, 2024
Net sales	$	8,297
Net loss		(1,808	)

Unaudited Pro Forma Financial Information

The following unaudited pro forma summary presents consolidated information of the Company as if the acquisition and consolidation of Fortemedia had occurred on January 1, 2023:


	Twelve Months Ended December 31,
	2024		2023
Net sales	$	1,334,446	$	1,693,230
Net income		49,465		218,815
Net income attributable to common stockholders		42,647		215,349
Earnings per share - basic	$	0.92	$	4.70
Earnings per share - diluted	$	0.92	$	4.65

The unaudited pro forma consolidated results of operations do not purport to be indicative of the results that would have been obtained if the above acquisition occurred as of the dates indicated or of those results that may be obtained in the future. The unaudited pro forma consolidated results for the twelve months ended December 31, 2024, include adjustments that result in an increase to amortization and depreciation of $2.5 million, net of tax.

The unaudited pro forma consolidated results for the twelve months ended December 31, 2023 include adjustments that result in an increase to amortization and depreciation of $7.7 million, net of tax. These unaudited pro forma consolidated results of operations were derived, in part, from the historical consolidated financial statements of Fortemedia and other available information and assumptions believed to be reasonable under the circumstances. Fortemedia has been conformed to the Company's reporting calendar.

- Definition

The entire disclosure for business combination.

+ References

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+ Details

Employee Benefit Plans - Additional Information (Details) £ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2025 GBP (£) $ / £	Dec. 31, 2025 USD ($) $ / £	Mar. 31, 2022 GBP (£) $ / £	Mar. 31, 2022 USD ($) $ / £
Defined Benefit Plan Disclosure [Line Items]
GBP:USD exchange rate \| $ / £				1	1	1	1
Underfunded pension and postretirement obligation, noncurrent					$ 1,200,000
Accumulated comprehensive loss defined benefit plan		$ (36,774,000)	$ (42,762,000)		(30,165,000)
Defined benefit plan recognized gain loss increase(decrease)	$ 7,500,000
Other comprehensive income pension and other postretirement benefit plans, net unamortized gain arising during period, before tax	$ (100,000)
Defined benefit plan amortization of net gains losses average term	6 years
Defined benefit plan, estimated future employer contributions in current fiscal year, description	The trustees are required to review the funding position every three years. An actuarial valuation was performed as of March 31, 2022, resulting in a deficit of approximately GBP 20 million (approximately $26 million based on a GBP: USD exchange rate of 1:1.3). As a result of this valuation we have agreed to a revised schedule of contributions of GBP 2.0 million (approximately $2.6 million based on a GBP: USD exchange rate of 1:1.3) to be paid annually with effect from January 1, 2023 to address the deficit revealed by the valuation (with the first payment made by December 31, 2023 through December 31, 2028). A final payment of GBP 1.5 million (approximately $2.0 million based on a GBP: USD rate of 1:1.3) will be made by December 31, 2029. These contributions, together with the assumed asset outperformance, are expected to eliminate the deficit by December 31, 2029.
Defined benefit plan, annual future benefit payments				£ 2.0	2,600,000
Final payment of GBP				£ 1.5	2,000,000
Unfunded liability of defined benefit plan, deficit						£ 20.0	$ 26,000,000
Defined benefit plan, plan assets, expected long-term rate-of-return above liability benchmark	2.60%
Defined benefit plan, plan assets, expected long-term rate-of-return, description	The overall strategy is designed to return a long-term return of 2.6% p.a. above the liability benchmark which is broadly equal to changes in the plan’s liabilities.
Defined contribution plan, cost recognized	$ 21,400,000	22,200,000	$ 22,300,000
Deferred compensation plan assets		17,173,000			19,959,000
Deferred Compensation Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation arrangements, overall, description	We maintain a Non-Qualified Deferred Compensation Plan (the “Deferred Compensation Plan”) for executive officers, key employees and members of the Board of Directors. The Deferred Compensation Plan allows eligible participants to defer the receipt of eligible compensation, including equity awards, until designated future dates. We offset our obligations under the Deferred Compensation Plan primarily by investing in the actual underlying investments. At December 31, 2025 and December 31, 2024, these investments totaled approximately $20.0 million and $17.2 million, respectively.
Deferred compensation plan assets		17,200,000			20,000,000
Defined Benefit Plans Asia
Defined Benefit Plan Disclosure [Line Items]
Net liability		$ 1,100,000			$ 800,000
Growth Assets
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target allocation percentage of assets				65.00%	65.00%
Hedging assets
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target allocation percentage of assets				35.00%	35.00%
TAIWAN, PROVINCE OF CHINA
Defined Benefit Plan Disclosure [Line Items]
Description of defined contribution pension and other postretirement plans	Pursuant to the Taiwan Labor Standard Law and Factory Law, we maintain a retirement plan for the employees in Taiwan, whereby we make contributions at a rate of 6% of the employee’s eligible payroll.
China
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage	8.00%
Description of defined contribution pension and other postretirement plans	As stipulated by the regulations of China, we maintain a retirement plan pursuant to the local municipal government for the employees in China and are required to make contributions of 8% of the employee’s eligible payroll.
United States
Defined Benefit Plan Disclosure [Line Items]
Employee salary deferral contributions percentage	100.00%
Employer matching contribution amount of match	$ 1
Defined contribution plan employee matching contribution amount	$ 2
Defined contribution plan vesting period	4 years
Description of defined contribution pension and other postretirement plans	We maintain a 401(k) retirement plan (the “Plan”) for the benefit of qualified employees at our U.S. locations. Employees who participate may elect to make salary deferral contributions to the Plan up to 100% of the employees’ eligible payroll subject to annual Internal Revenue Code maximum limitations. We currently make a matching contribution of $1 for every $2 contributed by the participant up to 6% (3% maximum matching) of the participant’s eligible payroll, which vests over an initial four years. In addition, we may make a discretionary contribution to the entire qualified employee pool, in accordance with the Plan.
United States \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage	6.00%
Employer matching contribution percent of match	3.00%
Pension Plan, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, general information	a contributory defined benefit plan that covers certain employees in the U.K. The defined benefit plan is closed to new entrants and frozen with respect to future benefit accruals. The retirement benefit is based on the final average compensation and service of each eligible employee. We determined the fair value of the defined benefit plan assets and utilize an annual measurement date of December 31. At subsequent measurement dates, defined benefit plan assets will be determined based on fair value. Defined benefit plan assets consist of a diverse range of listed and unlisted securities including corporate bonds and mutual funds and are denominated in the currency in which the benefits will be paid and that have terms to maturity approximating the terms of the related pension liability. The net pension and supplemental retirement benefit obligations and the related periodic costs are based on, among other things, assumptions of the discount rate, estimated return on plan assets and mortality rates. These obligations and related periodic costs are measured using actuarial techniques and assumptions.
Defined benefit plan, pension, method to determine vested benefit obligation	The projected unit credit method is the actuarial cost method used to compute the pension liabilities and related expenses.
Pension Plan, Defined Benefit \| UK
Defined Benefit Plan Disclosure [Line Items]
Accumulated comprehensive loss defined benefit plan					$ 33,400,000

Related Party Transactions

12 Months Ended

Dec. 31, 2025

Related Party Transactions

Note 15 – Related Party Transactions

We conduct business with the following related parties: Keylink International (B.V.I.) Inc. and its subsidiaries and affiliates (“Keylink”), Nuvoton Technology Corporation (“Nuvoton”), Jiyuan Crystal Photoelectric Frequency Technology Ltd. (“JCP”), Atlas Magnetics, Co (“Atlas”), and ATX Semiconductor SDN (“ATX”).

Keylink is a 5% joint venture partner in our Shanghai assembly and test facilities. We sell products to, and purchase inventory from, companies owned by Keylink. In addition, our subsidiaries in China lease their manufacturing facilities in Shanghai from, and

subcontract a portion of our manufacturing process (metal plating and environmental services) to Keylink. We also pay a consulting fee to Keylink.

Warren Chen, a member of the Company’s board of directors, serves as a member of the Nuvoton board of directors. We purchase wafers from Nuvoton for use in our production process and consider our relationships Nuvoton to be mutually beneficial, and plan to continue our strategic alliance with Nuvoton. We have an agreement to purchase approximately $3.1 million of wafers from Nuvoton that ends in the second quarter of 2027.

JCP is an FCP manufacturing company from which we purchase material and in which we have made an equity investment. We account for using the equity method of accounting.

Atlas is an early stage privately held fabless wafer design company in which the Company holds a majority interest. The Company determined that Atlas is a VIE and the Company does not have the power to direct the activities that most significantly impact Atlas. The Company has therefore determined that the Company is not the primary beneficiary. For additional information related to Atlas see Note 19 - Equity Investments - Variable Interest Entities, below.

In May 2025, the Company entered into a Joint Venture Agreement to acquire a 43% interest and joint control of ATX, a Malaysian private limited liability company, with the purpose of building synergies related to testing and packaging. ATX is a related party for the Company.

The tables below set forth the net sales, expenses, accounts receivable and accounts payable with our related parties. The tables below set forth the net sales, purchases and expenses, for the twelve months ended December 31:


	2025		2024		2023
Keylink
Net sales	$	208	$	3,485	$	12,595
Purchases	$	564	$	1,241	$	1,535
Plating, rental, and consulting expense	$	13,895	$	14,970	$	16,916
Nuvoton
Net sales	$	72	$	65	$	49
Purchases	$	6,454	$	7,076	$	10,454
JCP
Purchases	$	105	$	243	$	364
Atlas
Purchases	$	10,340	$	4,493	$	177
ATX
Purchases	$	15	$	-	$	-

The table below sets forth accounts receivable from and accounts payable to related parties at December 31:


	2025		2024
Keylink
Accounts receivable	$	25,415	$	23,796
Accounts payable	$	27,837	$	26,522
Nuvoton
Accounts receivable	$	9	$	31
Accounts payable	$	1,131	$	543
JCP
Accounts payable	$	-	$	64
Atlas
Accounts payable	$	721	$	558
ATX
Accounts payable	$	12	$	-

The Audit Committee of the Board reviews all related party transactions for potential conflict of interest situations on an ongoing basis, all in accordance with such procedures as the Audit Committee may adopt from time to time.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2023	May 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized	$ 51.4
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition	2 years 4 months 24 days
Share based compensation arrangement by share based payment award options vested number of shares		54,525
Share based compensation arrangement by share based payment award plan modification incremental compensation cost		$ 2.1
Employee Stock Option \| Plan 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized			7,000,000
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	3 years

Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Costs

The table below sets forth the restructuring costs, recorded in restructuring expense in the condensed consolidated statements of operations, incurred during the twelve months ended December 31, 2024 and 2023:


	For the Twelve Months Ended December 31,
	2024			2023
Asset impairment	$	3,266		$	200
Contract termination		(62	)		207
Employee severance		4,496			1,139
Other		891			37
	$	8,591		$	1,583

Schedule of Costs Accrued Related to the Restructuring


	Asset Impairment			Contract Termination			Employee Severance			Other			Total
Ending balance, December 31, 2023	$	-		$	207		$	-		$	110		$	317
Costs accrued		3,266			(62	)		4,496			891			8,591
Costs paid		(3,266	)		(145	)		(4,496	)		(789	)		(8,696	)
Ending balance, December 31, 2024	$	-		$	-		$	-		$	212		$	212

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The table below sets forth our income before taxes for the twelve months ended December 31:


Income (loss) before income taxes	2025		2024			2023
U.S.	$	24,306	$	(46,195	)	$	172,781
Foreign		59,653		108,877			105,152
Total	$	83,959	$	62,682		$	277,933

The table below sets forth the components of our income tax provision (benefit) for the twelve months ended December 31:


	2025			2024			2023
Current tax provision (benefit)
Federal	$	2,751		$	1,684		$	27,028
Foreign		16,420			41,052			34,408
State		(17	)		123			54
		19,154			42,859			61,490
Deferred tax provision (benefit)
Federal		1,439			(7,862	)		(8,273	)
Foreign		(2,449	)		(13,867	)		(10,463	)
State		(127	)		-			(5	)
		(1,137	)		(21,729	)		(18,741	)

Tax (benefit) provision for unrecognized tax benefits		(3,228	)		(9,290	)		4,536
Total income tax provision	$	14,789		$	11,840		$	47,285

Schedule of Effective Income Tax Rate Reconciliation

The table below sets forth a reconciliation between the effective tax rate and the statutory tax rates for the twelve months ended December 31:


	2025						2024						2023
	Amount			Percent*			Amount			Percent*			Amount			Percent*
US federal statutory tax rate	$	17,632			21.0		$	13,163			21.0		$	58,366			21.0
State and local income taxes, net of federal income tax effect**		(144	)		(0.2	)		123			0.2			54			-
Foreign tax effects
United Kingdom
Statutory tax rate difference between United Kingdom and United States		303			0.4			815			1.3			628			0.2
Tax account adjustment		-			-			1,907			3.0			-			-
Other		523			0.6			631			1.0			752			0.3
China																	-
Statutory tax rate difference between China and United States		1,002			1.2			2,202			3.5			1,729			0.6
Tax holidays		(2,689	)		(3.2	)		(1,490	)		(2.4	)		(1,533	)		(0.6	)
Research and development tax incentives		(4,400	)		(5.2	)		(3,148	)		(5.0	)		(4,487	)		(1.6	)
Changes in valuation allowances		2,060			2.5			-			-			-			-
Withholding taxes		1,598			1.9			(3,479	)		(5.6	)		11,121			4.0
Other		163			0.2			(69	)		(0.1	)		183			0.1
Taiwan
Statutory tax rate difference between Taiwan and United States		(285	)		(0.3	)		(512	)		(0.8	)		(127	)		-
Changes in valuation allowances		(1,729	)		(2.1	)		(3,067	)		(4.9	)		1,864			0.7
Withholding taxes		(254	)		(0.3	)		1,092			1.7			(5,369	)		(1.9	)
Other		(672	)		(0.8	)		404			0.6			(1,520	)		(0.5	)
Germany
Statutory tax rate difference between Germany and United States		183			0.2			2,709			4.3			663			0.2
Other		(435	)		(0.5	)		1,545			2.5			413			0.1
Hong Kong
Statutory tax rate difference between Hong Kong and United States		283			0.3			325			0.5			(36	)		-
Other		(803	)		(1.0	)		1,045			1.7			(535	)		(0.2	)
Luxembourg
Statutory tax rate difference between Luxembourg and United States		571			0.7			430			0.7			(295	)		(0.1	)
Losses not benefitted		672			0.8			1,826			3.0			-			-
Other		-			-			-			-			13			-
Singapore
Statutory tax rate difference between Singapore and United States		272			0.3			-			-			-			-
Changes in valuation allowances		1,509			1.8			-			-			-			-
Other		387			0.5			-			-			-			-
Other foreign jurisdictions		108			0.1			1,176			1.9			102			-
Effect of cross-border tax laws
Global intangible low-taxed income		3,826			4.6			4,426			7.1			(379	)		(0.1	)
Foreign derived intangible income		(1,362	)		(1.7	)		-			-			(14,617	)		(5.3	)
Other		322			0.3			(130	)		(0.2	)		(2,159	)		(0.8	)
Tax credits
Research and development tax credits		(956	)		(1.1	)		(1,400	)		(2.2	)		(1,200	)		(0.4	)
Changes in valuation allowances		(792	)		(0.9	)		-			-			-			-
Nontaxable or nondeductible items
Share-based payment awards		2,212			2.6			953			1.5			227			0.1
Other		239			0.3			(347	)		(0.6	)		(1,109	)		(0.4	)
Tax account adjustment		(1,327	)		(1.6	)		-			-			-			-
Changes in unrecognized tax benefits		(3,228	)		(3.8	)		(9,290	)		(14.8	)		4,536			1.6
Effective tax rate	$	14,789			17.6		$	11,840			18.9		$	47,285			17.0

* The sum of the amounts in the table may not equal the effective rate due to rounding.

** State taxes in California and Texas made up the majority (greater than 50% of the tax effect in this category).

Schedule of Income Taxes Paid

Income taxes paid, net of refunds


Jurisdiction	2025		2024		2023
Federal	$	-	$	-	$	39,000
State		4		-		36
Foreign
Taiwan		8,467		10,541		29,471
China		7,341		6,961		11,578
United Kingdom		2,692		640		12,224
Germany		5,163		2,275		(598	)
Hong Kong		-		1,013		5,908
Other jurisdictions		488		103		49
Total	$	24,157	$	21,534	$	97,668

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible

In accordance with the provisions related to accounting for uncertainty in income taxes, we recognize the benefit of a tax position if the position is “more likely than not” to prevail upon examination by the relevant tax authority. The table below sets forth a reconciliation of the beginning and ending amount of unrecognized tax benefits:


	2025			2024			2023
Balance at January 1,	$	44,391		$	48,838		$	48,072
Additions based on tax positions related to the current year		2,838			4,955			11,370
Additions for prior year tax positions		10,677			6,900			110
Reductions for prior year tax positions		(9,519	)		(16,302	)		(10,714	)
Balance at December 31,	$	48,387		$	44,391		$	48,838

Schedule of Deferred Tax Assets and Liabilities

The table below sets forth our deferred tax assets and liabilities as of December 31:


	2025			2024
Deferred tax assets
Inventory cost	$	32,895		$	30,128
Accrued expenses and accounts receivable		6,553			6,511
Research and development tax credits		12,864			11,769
Net operating loss carryforwards		46,784			47,386
Lease obligations		4,236			3,371
Accrued pension		227			1,882
Plant, equipment and intangible assets		644			-
Share based compensation and others		21,825			11,295
		126,028			112,342
Valuation allowances		(23,876	)		(22,101	)
Total deferred tax assets, non-current		102,152			90,241
Deferred tax liabilities
Plant, equipment and intangible assets		-			(4,773	)
Right of use assets		(7,292	)		(6,625	)
Outside basis differences and others		(12,940	)		(14,077	)
Total deferred tax liabilities, non-current		(20,232	)		(25,475	)
Net deferred tax assets	$	81,920		$	64,766

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Schedule of Property Plant and Equipment

Property, plant and equipment at December 31 were:


	2025			2024
Buildings and leasehold improvements	$	366,669		$	352,670
Machinery and equipment		1,349,750			1,276,038
		1,716,419			1,628,708
Less: Accumulated depreciation and amortization		(1,224,786	)		(1,108,320	)
		491,633			520,388
Construction in-progress		84,510			91,736
Land		73,462			72,135
	$	649,605		$	684,259

Segment Information, Revenue and Enterprise-Wide Disclosures - Schedule of Net Sales by Direct Sales or Distributor and Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	522,368	479,845	530,446
Distributor Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	959,705	831,275	1,131,293
Asia
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	1,156,823	1,020,256	1,181,519
Europe
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	185,223	188,402	287,549
Americas
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	140,027	102,462	192,671
China
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	660,280	589,507	704,829
Singapore
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	141,939	137,351	194,613
Taiwan
Segment Reporting Revenue Reconciling Item [Line Items]
Total net sales	$ 143,949	$ 136,316	$ 116,152

Acquisitions and Divestitures (Tables) - Fortemedia

12 Months Ended

Dec. 31, 2025

Summary of Fair Value of Assets and Liabilities Related to Acquisition

The following table summarizes the preliminary purchase price allocation, the fourth quarter 2025 purchase price adjustments, and the final purchase price allocation:


		Preliminary Values		Adjustments Debit/(Credit)			Final Values
Fair value of consideration transferred	$		60,378				$	60,378

Estimated fair value of assets acquired:
Cash and cash equivalents			7,803		-			7,803
Accounts receivable			1,898		-			1,898
Inventories			1,845		-			1,845
Prepaid expenses and other current assets			2,324		(472	)		1,852
Property, plant, and equipment			5,388		-			5,388
Intangible assets			19,000		-			19,000
Other long-term assets			3,799		-			3,799
Total assets acquired			42,057		(472	)		41,585

Estimated fair value of liabilities assumed:
Accounts payable			381		-			381
Accrued liabilities and other			7,437		-			7,437
Income tax payable			64		-			64
Deferred taxes			412		292			120
Other long-term liabilities			9,728		(991	)		10,719
Total liabilities assumed			18,022		(699	)		18,721
Total identifiable net assets			24,035		(1,171	)		22,864
Goodwill			36,343		1,171			37,514
Fair value of consideration transferred	$		60,378				$	60,378

Schedule of Business Combination of Revenue and Earnings in Consolidated Statement of Income

The amounts of revenue and earnings of Fortemedia included in the Company’s consolidated statement of operations from the acquisition date to the period ending December 31, 2024 are as follows:


	November 1, 2024 to
	December 31, 2024
Net sales	$	8,297
Net loss		(1,808	)

Business Acquisition, Unaudited Pro Forma Information

The following unaudited pro forma summary presents consolidated information of the Company as if the acquisition and consolidation of Fortemedia had occurred on January 1, 2023:


	Twelve Months Ended December 31,
	2024		2023
Net sales	$	1,334,446	$	1,693,230
Net income		49,465		218,815
Net income attributable to common stockholders		42,647		215,349
Earnings per share - basic	$	0.92	$	4.70
Earnings per share - diluted	$	0.92	$	4.65

Segment Information, Revenue and Enterprise-Wide Disclosures

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Segment Information, Revenue and Enterprise-Wide Disclosures

Note 16 – Segment Information, Net Sales and Enterprise-Wide Disclosures

Segment Reporting. The Company’s operations are managed and reported on a consolidated basis to our President and CEO who is also our CODM. For financial reporting purposes, we operate in a single segment, standard semiconductor products, through our various design, manufacturing, and distribution facilities, which reflects the way in which our CODM executes operating decisions, allocates resources, and manages the growth and profitability of the Company. We sell product primarily through our operations in Asia, the Americas, and Europe.

The tables below set forth net sales based on the location of the subsidiary producing the net sale for the twelve months ended December 31, 2025, 2024, and 2023 :


2025	Asia			Americas			Europe			Consolidated
Total sales	$	1,639,747		$	1,080,705		$	255,779		$	2,976,231
Inter-company sales		(739,238	)		(602,347	)		(152,573	)		(1,494,158	)
Net sales	$	900,509		$	478,358		$	103,206		$	1,482,073

Property, plant, and equipment	$	488,295		$	68,294		$	93,016		$	649,605
Assets	$	1,627,268		$	559,170		$	261,662		$	2,448,100

2024	Asia			Americas			Europe			Consolidated
Total sales	$	1,441,590		$	910,955		$	271,137		$	2,623,682
Inter-company sales		(625,864	)		(546,649	)		(140,049	)		(1,312,562	)
Net sales	$	815,726		$	364,306		$	131,088		$	1,311,120

Property, plant, and equipment	$	502,171		$	76,626		$	105,462		$	684,259
Assets	$	1,697,072		$	461,872		$	227,337		$	2,386,281

2023	Asia			Americas			Europe			Consolidated
Total sales	$	1,560,595		$	1,210,561		$	378,442		$	3,149,598
Inter-company sales		(684,927	)		(670,624	)		(132,308	)		(1,487,859	)
Net sales	$	875,668		$	539,937		$	246,134		$	1,661,739

Property, plant, and equipment	$	545,865		$	85,005		$	115,299		$	746,169
Assets	$	1,600,858		$	544,247		$	222,554		$	2,367,659

Disaggregation of Net Sales. We disaggregate net sales from contracts with customers into direct sales and distribution sales (“Distributors”) and by geographic area. Direct sales customers consist of those customers using our product in their manufacturing process, and Distributors are those customers who resell our products to third parties. We deliver our products to customers around the world for use in industrial, automotive, computing, communications and consumer applications. Further, most of our contracts are fixed-price arrangements, and are short term in nature, ranging from days to several months.

The tables below set forth net sales for the Company disaggregated into geographic locations based on shipment and by type (direct sales or distributor) for the twelve months ended December 31, 2025, 2024, and 2023:


Net Sales by Region	2025		2024		2023
Asia	$	1,156,823	$	1,020,256	$	1,181,519
Europe		185,223		188,402		287,549
Americas		140,027		102,462		192,671
Total net sales	$	1,482,073	$	1,311,120	$	1,661,739

Net Sales by Type	2025		2024		2023
Direct sales	$	522,368	$	479,845	$	530,446
Distributor sales		959,705		831,275		1,131,293
Total net sales	$	1,482,073	$	1,311,120	$	1,661,739

The table below sets forth the number of customers and the amount of sales to that customer, where that customer accounted for 10% or greater of our net sales during the applicable twelve-month period ended December 31:


	2025		2024		2023
Customer 1	$	182,314	$	167,242	$	201,583
Customer 2	$	157,735	$	-	$	183,626

Each of the customers that accounted for 10% or more of our net sales are broad-based distributors serving thousands of customers. At December 31, 2025 and 2024, one customer that accounted for 10% of more of the Company’s net sales accounted for approximately 16.3% and 12.8%, respectively, of the Company’s outstanding accounts receivable.

The table below sets forth the location to where products were shipped, representing 10% or more of net sales for the twelve months ended December 31, 2025, 2024, and 2023: .


	2025		2024		2023
China	$	660,280	$	589,507	$	704,829
Singapore	$	141,939	$	137,351	$	194,613
Taiwan	$	143,949	$	136,316	$	116,152

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Employee Benefit Plans - Net periodic benefit costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 395	$ 383
Interest cost	5,282	4,664
Recognized actuarial gain	$ (5,619)	$ 3,708
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Expected return on plan assets	$ 3,878	$ (5,920)
Prior service cost	68	66
Net periodic benefit cost	$ 4,004	$ 2,901

Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Information Related to Number of Instruments and Notional Amounts of Cross Currency Swaps

The table below sets forth the number of instruments and the notional amounts of the Company’s cross currency swaps at December 31, 2025 and December 31, 2024:


	Number of Instruments		Notional Amount
	2025	2024	2025		2024
Collared forwards	4	6	$	534,310	$	1,084,432

Summary of Fair Value of Interest Rate Related Derivative Financial Instruments and Their Classification on Consolidated Balance Sheets


	Fair Value
	Other Current and Non-Current Assets				Other Current and Non-Current Liabilities
	2025		2024		2025		2024
Collared forwards	$	11,454	$	593	$	2,558	$	8,071

Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Income

The tables below sets forth the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income for the twelve months ended December 31 2025, 2024, and 2023:


Derivative Instruments	Amount of Gain or (Loss) Recognized in OCI on Derivative							Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from	Amount of Gain Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Designated as	December 31,							Effectiveness	December 31,
Hedging Instruments	2025		2024		2023			Testing)	2025		2024		2023
Collared forwards		11,908		1,535		(10,202	)	Interest income		20,034		10,409		4,304
Cross currency swaps		-		8,450		(1,442	)	Interest income		-		1,219		1,653


	Amount of Loss Recognized in Net Income
	December 31,
Derivative Instruments Not Designated as Hedging Instruments	2025			2024			2023
Foreign-currency forward contracts		(4,870	)		(10,458	)		(5,364	)

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets
Inventory cost	$ 32,895	$ 30,128
Accrued expenses and accounts receivable	6,553	6,511
Research and development tax credits	12,864	11,769
Net operating loss carryforwards	46,784	47,386
Lease obligations	4,236	3,371
Accrued pension	227	1,882
Plant, equipment and intangible assets	644	0
Share based compensation and others	21,825	11,295
Total deferred tax assets, include valuation allowance	126,028	112,342
Valuation allowances	(23,876)	(22,101)
Total deferred tax assets, non-current	102,152	90,241
Deferred tax liabilities
Plant, equipment and intangible assets	0	(4,773)
Right of use assets	(7,292)	(6,625)
Outside basis differences and others	(12,940)	(14,077)
Total deferred tax liabilities, non-current	(20,232)	(25,475)
Net deferred tax assets	$ 81,920	$ 64,766

Restructuring Costs - Schedule of Restructuring Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring cost	$ 8,591	$ 1,583
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring cost	3,266	200
Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring cost	(62)	207
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring cost	4,496	1,139
Other
Restructuring Cost and Reserve [Line Items]
Restructuring cost	$ 891	$ 37

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Derivative Financial Instruments - Summary of Fair Value of Interest Rate Related Derivative Financial Instruments and Their Classification on Consolidated Balance Sheets (Details) - Collared forwards - Designated as Hedging Instrument - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Liabilities	Liabilities
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Assets	Assets
Derivative Asset	$ 11,454	$ 593
Derivative Liability	$ 2,558	$ 8,071

- Definition

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-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5C

Reference 29: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(9)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SX 210.12-13(Column G)(Footnote 8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5

Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 5C
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Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SX 210.12-13(Column G))
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Reference 34: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 5A
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Reference 35: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Subparagraph (SX 210.12-13B(Column E))
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Reference 36: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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-Paragraph 5B
-Subparagraph (SX 210.12-13B(Column E)(Footnote 4))
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+ Details

Equity Investments

12 Months Ended

Dec. 31, 2025

Investments, Debt and Equity Securities [Abstract]

Equity Investments

Note 19 - Equity Investments

As of December 31, 2025 and December 31, 2024, the Company had long-term equity investments of $156.3 million and $86.5 million, respectively. These long-term equity investments are including in Other long-term assets in our consolidated balance sheets.

The Company maintains equity investments in companies which are accounted for under the measurement alternative described in ASC 321-10-35-2 for equity securities that lack readily determinable fair values. As of December 31, 2025, and 2024 the Company had $97.4 million and $55.5 million, respectively of investments accounted for under the measurement alternative. During the twelve months ended December 31, 2025 and December 31, 2024, the Company recorded $28.6 million and $0.3 million, respectively, of non-cash mark-to-market adjustments related to the value of a previously made equity investment. The upward adjustments were recorded within other income, in the condensed consolidated statement of operations. The upward fair value adjustment represents a nonrecurring fair value measurement based on observable price changes.

Unconsolidated Variable Interest Entity

During July 2021, the Company acquired an interest in Atlas, an early stage privately held fabless wafer design company located in the western United States. The Company’s initial investment in July 2021 was $10.0 million of preferred stock and a $5.0 million convertible promissory note. In April 2023, the Company acquired an additional interest in Atlas by purchasing $13.9 million of preferred stock. The primary purpose for providing the additional investment in Atlas was for continued access to developing technology with potential future benefit to the Company. As part of the April 2023 agreement, the Company’s previously held convertible note converted to $5.2 million of preferred stock. In June 2025, the Company acquired an additional interest in Atlas by purchasing $12.3 million of preferred stock. In connection with the additional investment in Atlas in June 2025, the Company recorded an upward mark-to-market adjustment of $33.3 million to adjust the value of the investment. The primary purpose for providing the additional investments in Atlas was to provide for continued access to developing technology with potential future benefit to the Company. At December 31, 2025, the Company owned more than 50% of Atlas. The Company determined that Atlas is a VIE and a related party. While the Company does own more that 50% of Atlas, according to the voting agreement governing the transaction, the Company does not have the power to control the board of directors or direct the activities that most significantly impact Atlas, including:

•

The hiring and firing of officers (i.e., CEO, CFO, etc.) – The hiring and firing of personnel responsible for making the key daily decisions and implementing the strategic operating direction will determine the success the Company has in their initiatives, thereby affecting the economic performance;

•

Determining the business plan and budget, including incurring additional indebtedness or issuing additional equity interests – As Atlas is thinly capitalized, the decisions around when and how to obtain cash will influence whether AM can continue operating; and

•

Determining the strategic operating direction of Atlas – The decisions made around the significant operating direction of Atlas will significantly impact the overall performance of the Company by determining where and how Atlas limited capital is spent without having significant revenues to keep the Company operating.

As the Company is not the primary beneficiary of Atlas, the Company did not consolidate the assets and liabilities of Atlas in our financial statements and instead accounts for the investment under the measurement alternative described in ASC 321-10-35-2 using the available measurement alternative for equity securities that lack readily determinable fair value. As such, the Company’s investment is measured at cost less impairment, and adjusted to fair value if there are any observable price changes for identical or similar investment of the same issuer.

Atlas is funded through debt and equity. The Company's maximum exposure to loss is limited to its investment in Atlas and notes receivable and accrued interest owed to the Company from Atlas. The following is a summary of the Company’s holdings in Atlas, a VIE, in which we are not the primary beneficiary:


	December 31,
	2025		2024
VIE total assets	$	39,620	$	20,273
VIE total liabilities		10,659		4,945

Diodes' preferred equity in VIE	$	90,035	$	44,420
Diodes' note receivable from VIE		9,000		4,000
Diodes' interest receivable from VIE		628		245
Diodes' maximum exposure to loss	$	99,663	$	48,665

ATX Semiconductor SDN

In June 2025, the Company entered into a joint venture agreement with Global Advanced Packaging Test Limited to acquire a 43% interest in and joint control of ATX Semiconductor SDN (“ATX”), a Malaysian private limited liability company, with the purpose of building synergies related to testing and packaging. The ATX joint venture meets the accounting definition of a joint venture where neither party has unilateral control of the entity and both parties have joint control over the decision-making process in the entity. As such, the Company uses the equity method to account for its share of the investment in ATX. The carrying value of the equity investment is $27.0 million as of December 31, 2025. The Company recorded and will continue to record equity method earnings of the joint venture on a 3-month lag.

Intangible Assets - Schedule of Expected Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2026	$ 15,660
2027	14,671
2028	3,673
2029	642
2030	558
2031 and thereafter	879
Total	$ 36,083	$ 58,176

Employee Benefit Plans - Plan Assets by major categories (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 97,381	$ 88,289
Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12,523	5,736
Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	84,858	82,553
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12,523	5,736
Cash and Cash Equivalents \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12,523	5,736
Equity Securities, U.K.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	531	527
Equity Securities, U.K. \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	531	527
Equity Securities, Overseas Equities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	14,091	13,227
Equity Securities, Overseas Equities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	14,091	13,227
Equity Securities, Emerging Markets
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,579	2,070
Equity Securities, Emerging Markets \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,579	2,070
Fixed Income Securities, Government Bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	43	78
Fixed Income Securities, Government Bonds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	43	78
Fixed Income Securities, Non-Government Bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	8,619	15,569
Fixed Income Securities, Non-Government Bonds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	8,619	15,569
Hedge Funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	18,558	15,983
Hedge Funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	18,558	15,983
Liability Driven Investments
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	35,389	31,492
Liability Driven Investments \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	35,389	31,492
Commodities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	947	795
Commodities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	947	795
Other
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4,101	2,812
Other \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 4,101	$ 2,812

Employee Benefit Plans - Expected long-term return by asset category (Details)	12 Months Ended
	Dec. 31, 2025
Growth assets
Expected Long Term Return [Abstract]
Expected long-term return	6.60%
Asset allocation [Abstract]
Asset allocation	48.00%
Hedging assets
Expected Long Term Return [Abstract]
Expected long-term return	5.00%
Asset allocation [Abstract]
Asset allocation	34.00%
Cash
Expected Long Term Return [Abstract]
Expected long-term return	3.80%
Asset allocation [Abstract]
Asset allocation	18.00%

Share-based Compensation - Summary of Nonvested Share Grants (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Summary of the status of non vested share grants [Roll Forward]
Beginning balance nonvested	1,148	1,223
Granted	547	517
Vested	(341)	(535)
Forfeited and other	(113)	(57)
Ending balance nonvested	1,241	1,148
Weighted-Average Grant-Date Fair Value [Roll Forward]
Beginning balance nonvested	$ 79.56	$ 81.02
Granted	55.22	70.96
Vested	78.22	74.66
Forfeited and other	86.62	80.22
Ending balance nonvested	$ 68.59	$ 79.56
Aggregate Intrinsic Value
Vested	$ 18,609	$ 37,078
Balance nonvested	$ 61,275	$ 70,824	$ 98,493

Summary of Operations and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Component of Comprehensive Income

The components and balance of comprehensive income is as follows:


	2025			2024			2023
Unrealized foreign currency losses	$	(38,436	)	$	(75,044	)	$	(63,171	)
Unrealized loss on cross currency and interest rate swaps, net of tax		(42,146	)		(34,906	)		(37,294	)
Unrealized loss on defined benefit plan		(30,165	)		(36,774	)		(42,762	)
Balance at December 31,	$	(110,747	)	$	(146,724	)	$	(143,227	)

Commitments and Contingencies

12 Months Ended

Dec. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 17 – Commitments and Contingencies

Lease commitments – We lease offices, manufacturing plants, equipment, vehicles, and warehouses under various lease agreements expiring through 2048. For information related to our lease commitments see Note 9.

In addition, we have the following land right leases. None of the leases requires a rental payment.


	Term (years)	Expiration Date
Chengdu, China	50	2061
Shanghai, China*	50	2056
Shanghai, China*	50	2058
Shandong, China	50	2058
Yangzhou, China	50	2065

* Separate leases by separate Diodes’ subsidiaries

Purchase commitments – We have entered into non-cancelable purchase contracts for capital expenditures, primarily for manufacturing equipment, for approximately $51.9 million at December 31, 2025. As of December 31, 2025, we also had a commitment to purchase approximately $52.4 million of wafers to be used in our manufacturing process. These wafer purchases are scheduled to occur through 2031.

Contingencies - From time to time, we are involved in various legal proceedings that arise in the normal course of business. While we intend to defend any lawsuit vigorously, we presently believe that the ultimate outcome of any current pending legal proceeding will not have any material adverse effect on our financial position, cash flows or operating results. However, litigation is subject to inherent uncertainties, and unfavorable rulings could occur. An unfavorable ruling could include monetary damages, which could impact on our business and operating results for the period in which the ruling occurs or future periods. Based on information available, we evaluate the likelihood of potential outcomes. We record the appropriate liability when the amount is deemed probable and reasonably estimable. In addition, we do not accrue for estimated legal fees and other directly related costs as they are expensed as incurred. The Company is not currently a party to any pending litigation that the Company considers material.

Income Taxes

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Income Taxes

Note 12 – Income Taxes

The table below sets forth our income before taxes for the twelve months ended December 31:


Income (loss) before income taxes	2025		2024			2023
U.S.	$	24,306	$	(46,195	)	$	172,781
Foreign		59,653		108,877			105,152
Total	$	83,959	$	62,682		$	277,933

The table below sets forth the components of our income tax provision (benefit) for the twelve months ended December 31:


	2025			2024			2023
Current tax provision (benefit)
Federal	$	2,751		$	1,684		$	27,028
Foreign		16,420			41,052			34,408
State		(17	)		123			54
		19,154			42,859			61,490
Deferred tax provision (benefit)
Federal		1,439			(7,862	)		(8,273	)
Foreign		(2,449	)		(13,867	)		(10,463	)
State		(127	)		-			(5	)
		(1,137	)		(21,729	)		(18,741	)

Tax (benefit) provision for unrecognized tax benefits		(3,228	)		(9,290	)		4,536
Total income tax provision	$	14,789		$	11,840		$	47,285

Effective Tax Rate Reconciliation

The table below sets forth a reconciliation between the effective tax rate and the statutory tax rates for the twelve months ended December 31:


	2025						2024						2023
	Amount			Percent*			Amount			Percent*			Amount			Percent*
US federal statutory tax rate	$	17,632			21.0		$	13,163			21.0		$	58,366			21.0
State and local income taxes, net of federal income tax effect**		(144	)		(0.2	)		123			0.2			54			-
Foreign tax effects
United Kingdom
Statutory tax rate difference between United Kingdom and United States		303			0.4			815			1.3			628			0.2
Tax account adjustment		-			-			1,907			3.0			-			-
Other		523			0.6			631			1.0			752			0.3
China																	-
Statutory tax rate difference between China and United States		1,002			1.2			2,202			3.5			1,729			0.6
Tax holidays		(2,689	)		(3.2	)		(1,490	)		(2.4	)		(1,533	)		(0.6	)
Research and development tax incentives		(4,400	)		(5.2	)		(3,148	)		(5.0	)		(4,487	)		(1.6	)
Changes in valuation allowances		2,060			2.5			-			-			-			-
Withholding taxes		1,598			1.9			(3,479	)		(5.6	)		11,121			4.0
Other		163			0.2			(69	)		(0.1	)		183			0.1
Taiwan
Statutory tax rate difference between Taiwan and United States		(285	)		(0.3	)		(512	)		(0.8	)		(127	)		-
Changes in valuation allowances		(1,729	)		(2.1	)		(3,067	)		(4.9	)		1,864			0.7
Withholding taxes		(254	)		(0.3	)		1,092			1.7			(5,369	)		(1.9	)
Other		(672	)		(0.8	)		404			0.6			(1,520	)		(0.5	)
Germany
Statutory tax rate difference between Germany and United States		183			0.2			2,709			4.3			663			0.2
Other		(435	)		(0.5	)		1,545			2.5			413			0.1
Hong Kong
Statutory tax rate difference between Hong Kong and United States		283			0.3			325			0.5			(36	)		-
Other		(803	)		(1.0	)		1,045			1.7			(535	)		(0.2	)
Luxembourg
Statutory tax rate difference between Luxembourg and United States		571			0.7			430			0.7			(295	)		(0.1	)
Losses not benefitted		672			0.8			1,826			3.0			-			-
Other		-			-			-			-			13			-
Singapore
Statutory tax rate difference between Singapore and United States		272			0.3			-			-			-			-
Changes in valuation allowances		1,509			1.8			-			-			-			-
Other		387			0.5			-			-			-			-
Other foreign jurisdictions		108			0.1			1,176			1.9			102			-
Effect of cross-border tax laws
Global intangible low-taxed income		3,826			4.6			4,426			7.1			(379	)		(0.1	)
Foreign derived intangible income		(1,362	)		(1.7	)		-			-			(14,617	)		(5.3	)
Other		322			0.3			(130	)		(0.2	)		(2,159	)		(0.8	)
Tax credits
Research and development tax credits		(956	)		(1.1	)		(1,400	)		(2.2	)		(1,200	)		(0.4	)
Changes in valuation allowances		(792	)		(0.9	)		-			-			-			-
Nontaxable or nondeductible items
Share-based payment awards		2,212			2.6			953			1.5			227			0.1
Other		239			0.3			(347	)		(0.6	)		(1,109	)		(0.4	)
Tax account adjustment		(1,327	)		(1.6	)		-			-			-			-
Changes in unrecognized tax benefits		(3,228	)		(3.8	)		(9,290	)		(14.8	)		4,536			1.6
Effective tax rate	$	14,789			17.6		$	11,840			18.9		$	47,285			17.0

* The sum of the amounts in the table may not equal the effective rate due to rounding.

** State taxes in California and Texas made up the majority (greater than 50% of the tax effect in this category).

Income taxes paid, net of refunds


Jurisdiction	2025		2024		2023
Federal	$	-	$	-	$	39,000
State		4		-		36
Foreign
Taiwan		8,467		10,541		29,471
China		7,341		6,961		11,578
United Kingdom		2,692		640		12,224
Germany		5,163		2,275		(598	)
Hong Kong		-		1,013		5,908
Other jurisdictions		488		103		49
Total	$	24,157	$	21,534	$	97,668

Uncertain Tax Positions


	2025			2024			2023
Balance at January 1,	$	44,391		$	48,838		$	48,072
Additions based on tax positions related to the current year		2,838			4,955			11,370
Additions for prior year tax positions		10,677			6,900			110
Reductions for prior year tax positions		(9,519	)		(16,302	)		(10,714	)
Balance at December 31,	$	48,387		$	44,391		$	48,838

If the $48.4 million of unrecognized tax benefits as of December 31, 2025, is recognized, approximately $46.3 million would affect the effective tax rate. It is reasonably possible that the amount of the unrecognized benefit with respect to certain of our unrecognized tax positions will significantly increase or decrease within the next 12 months. These changes may be the result of settlements of ongoing audits or competent authority proceedings. At this time, an estimate of the range of the reasonably possible outcomes cannot be made.

We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. We are no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2022. We are no longer subject to China income tax examinations by tax authorities for tax years before 2014. With respect to state and local jurisdictions and countries outside of the U.S., with limited exceptions, we are no longer subject to income tax audits for years before 2019. Although the outcome of tax audits is always uncertain, we believe that adequate amounts of tax, interest and penalties, if any, have been provided for in our reserve for any adjustments that may result from future tax audits. We recognize accrued interest and penalties, if any, related to unrecognized tax benefits in interest expense. We had an immaterial amount of accrued interest and penalties at December 31, 2025, 2024, and 2023.

Deferred Taxes

The table below sets forth our deferred tax assets and liabilities as of December 31:


	2025			2024
Deferred tax assets
Inventory cost	$	32,895		$	30,128
Accrued expenses and accounts receivable		6,553			6,511
Research and development tax credits		12,864			11,769
Net operating loss carryforwards		46,784			47,386
Lease obligations		4,236			3,371
Accrued pension		227			1,882
Plant, equipment and intangible assets		644			-
Share based compensation and others		21,825			11,295
		126,028			112,342
Valuation allowances		(23,876	)		(22,101	)
Total deferred tax assets, non-current		102,152			90,241
Deferred tax liabilities
Plant, equipment and intangible assets		-			(4,773	)
Right of use assets		(7,292	)		(6,625	)
Outside basis differences and others		(12,940	)		(14,077	)
Total deferred tax liabilities, non-current		(20,232	)		(25,475	)
Net deferred tax assets	$	81,920		$	64,766

ASU No. 2013-11 provides that an entity is required to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. The $53.1 million net deferred tax asset presented in the balance sheet as of December 31, 2025, is net of $28.8 million of unrecognized tax benefits. The $81.9 million and $64.8 million net deferred tax asset presented above for December 31, 2025 and 2024, respectively, is prior to the net balance sheet presentation required by ASU 2013-11.

At December 31, 2025, we had $1.6 million federal research credit carryforward and approximately $11.2 million of state tax credit and research credit carryforwards which are available to offset future income tax liabilities. The state tax credit carryforwards began expiring in 2025. Consistent with prior years, we determined that it is more likely than not that our state research credit carryforwards will expire before they are utilized. The valuation allowances recorded against the related deferred tax assets totaled $11.8 million and $11.3 million as of December 31, 2025 and 2024, respectively

At December 31, 2025, we had state net operating loss (“NOL”) carryforwards of approximately $1.2 million, and foreign NOL carryforwards of $274.0 million which are available to offset future taxable income. The state NOL carryforward began to expire in 2025. We determined that it is more likely than not that the state NOL carryforwards will expire before they are fully utilized and recorded a full valuation allowance on the related deferred tax assets. The foreign NOL carryforwards began expiring in 2025. We determined that it is more likely than not that a portion of the foreign NOL carryforwards will expire before they are fully utilized. The valuation allowances recorded against the related deferred tax assets totaled $11.6 million and $10.5 million as of December 31, 2025 and 2024, respectively.

Several jurisdictions in which we operate have either enacted, or announced plans to enact, legislation consistent with the Organization for Economic Co-operation and Development Global Anti-Base Erosion Model Rules (“Pillar Two”) which introduced a global minimum effective tax rate of 15% applied on a jurisdiction-by-jurisdiction basis. We have analyzed enacted legislation, and it did not have a material impact on our consolidated financial statements for 2025; however, we continue to monitor future tax legislative changes in the jurisdictions in which we operate in order to evaluate the impacts to the consolidated financial statements.

Supplemental Information

Our undistributed foreign earnings continue to be indefinitely reinvested in foreign operations, with limited exceptions related to earnings of European and Asian subsidiaries. The impact of these exceptions on income tax expense is reflected within the withholding taxes line items of the effective tax rate reconciliation for the years ended December 31, 2025, 2024, and 2023. As of December 31, 2025, we had undistributed earnings from non-U.S. operations of approximately $1.3 billion (including approximately $112.7 million of restricted earnings, which are not available for dividends). Undistributed earnings of our China subsidiaries comprise $449.6 million of this total. Additional Chinese withholding taxes of approximately $49.2 million would be required should the $449.6 million of such earnings be distributed out of China as dividends.

Exclusive of one-time deferred tax charges of $0.9 million and $1.6 million for the twelve months ended December 31, 2025 and 2024, the impact of tax holidays decreased our tax expense by approximately $1.3 million, $1.1 million, and $0.7 million for the twelve months ended December 31, 2025, 2024, and 2023, respectively. There were no one-time deferred tax charges for the twelve months

ended December 31, 2023. Exclusive of the deferred tax charges, the benefit of the tax holidays on basic and diluted earnings per share was $0.03, $0.02, and $0.02 for the twelve months ended December 31, 2025, 2024, and 2023, respectively.

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477617/942-740-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478822/944-740-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 231
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-231

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12C
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12C

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12B

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477891/740-270-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480990/946-20-50-13

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/740/tableOfContent

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-14

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-21

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-17

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-2

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

Commitments and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Purchase Commitments	$ 51.9
Long-term purchase commitment, Amount	$ 52.4

Employee Benefit Plans - Schedule of Benefit Obligation, Fair Value of Plan Assets, and Funded Status of our Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Change in Benefit Obligation [Roll Forward]
Service cost	$ 395	$ 383
Interest cost	5,282	4,664
Change in Plan Assets [Roll Forward]
Fair value of plan assets - beginning	88,289
Fair value of plan assets - ending	97,381	88,289
Pension Plan, Defined Benefit
Change in Benefit Obligation [Roll Forward]
Benefit obligation - beginning	95,572	108,108
Service cost	395	383
Interest cost	5,282	4,664
Actuarial (gain) loss	(3,621)	(10,605)
Benefits paid	(5,990)	(5,284)
Currency changes	6,946	(1,694)
Benefit obligation - ending	98,584	95,572
Change in Plan Assets [Roll Forward]
Fair value of plan assets - beginning	88,289	98,016
Employer contribution	5,506	2,939
Actual return on plan assets	3,029	(5,813)
Benefits paid	(5,990)	(5,284)
Currency changes	6,547	(1,569)
Fair value of plan assets - ending	97,381	88,289
Underfunded status	$ (1,203)	$ (7,283)

Segment Information, Revenue and Enterprise-Wide Disclosures - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) Customer Segment	Dec. 31, 2024 USD ($) Customer	Dec. 31, 2023 USD ($)
Entity Wide Revenue Major Customer [Line Items]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	Chief Executive Officer [Member]
Segment Reporting, Expense Information Used by CODM, Description	we operate in a single segment, standard semiconductor products, through our various design, manufacturing, and distribution facilities, which reflects the way in which our CODM executes operating decisions, allocates resources, and manages the growth and profitability of the Company. We sell product primarily through our operations in Asia, the Americas, and Europe.
Number of reportable segments \| Segment	1
Net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Customer 1
Entity Wide Revenue Major Customer [Line Items]
Net sales	182,314	167,242	201,583
China
Entity Wide Revenue Major Customer [Line Items]
Net sales	$ 660,280	$ 589,507	$ 704,829
Geographic Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Number of customer did not account for 10% or more of net sales \| Customer		1
Geographic Concentration Risk \| Sales Revenue
Entity Wide Revenue Major Customer [Line Items]
Number of customer did not account for 10% or more of net sales \| Customer	1
Geographic Concentration Risk \| Sales Revenue \| Customer 1
Entity Wide Revenue Major Customer [Line Items]
Concentration risk percentage	10.00%
Geographic Concentration Risk \| Accounts Receivable \| Customer 1
Entity Wide Revenue Major Customer [Line Items]
Concentration risk percentage	16.30%	12.80%

Employee Benefit Plans - Schedule of Assumptions Used (Details) - Pension Plan, Defined Benefit	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Defined benefit plan, Weighted average assumptions used in calculating net periodic benefit cost [Abstract]
Discount rate	5.50%	4.40%
Expected long-term return on plan assets	5.60%	6.20%
Defined benefit plan, Weighted average assumptions used in calculating benefit obligation [Abstract]
Discount rate	5.50%	5.40%

Share-Based Compensation

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Share-Based Compensation

Note 14 – Share-Based Compensation

In May 2022, our stockholders approved our 2022 Equity Incentive Plan (“2022 Plan”). Since the approval of the 2022 Plan, all share-based compensation awards have been granted under and will continue to be granted under the 2022 Plan, no additional share-based awards will be granted under any previous plan. The number of shares authorized to be awarded under the 2022 Plan is 7.0 million shares.

The table below sets forth the line items where share-based compensation expense was recorded for the twelve months ended December 31:


	2025		2024		2023
Cost of goods sold	$	2,224	$	2,073	$	1,860
Selling, general and administrative expense		18,491		15,690		24,470
Research and development expense		5,030		5,004		4,581
Total share-based compensation expense	$	25,745	$	22,767	$	30,911

Share Grants – Restricted stock awards and restricted stock units generally vest in equal annual installments over a four-year period. Restricted stock grants are measured based on the fair market value of the underlying stock on the date of grant and compensation expense is recognized on a straight-line basis over the requisite four-year service period.

Performance stock units (“PSUs”) are measured based on the fair market value of the underlying stock on the date of grant and compensation expense is recognized over the three-year performance period, with adjustments made to the expense to recognize the probable payout percentage. PSUs will vest upon the Company achieving a cumulative 3-year non-GAAP operating income target for the applicable periods.

The table below sets forth a summary of our non-vested share grants in 2025, 2024, and 2023:


Restricted Stock Grants	Shares			Weighted Average Grant Date Fair Value ($)		Aggregate Intrinsic Value
Nonvested at December 31, 2023		1,223			81.02	$	98,493
Granted		517			70.96
Vested		(535	)		74.66	$	37,078
Forfeited and other		(57	)		80.22
Nonvested at December 31, 2024		1,148			79.56	$	70,824
Granted		547			55.22
Vested		(341	)		78.22	$	18,609
Forfeited and other		(113	)		86.62
Nonvested at December 31, 2025		1,241			68.59	$	61,275

The total unrecognized share-based compensation expense as of December 31, 2025, was approximately $51.4 million, relating to share grants, which was expected to be recognized over a weighted average period of approximately 2.4 years.

Stock Modification. During the twelve months ended December 31, 2023 we modified previously granted stock awards for two corporate officers who retired. The result of the modifications resulted in the acceleration of the vesting of 54,525 stock awards for the corporate officers. The incremental expense recorded for this modification was approximately $2.1 million, which was expensed in SG&A expense in the twelve months ended December 31, 2023.

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total Diodes Incorporated Stockholders' Equity	Noncontrolling Interest
BALANCE at Dec. 31, 2022	$ 1,582,919	$ 36,503	$ (337,490)	$ 494,773	$ 1,448,092	$ (128,233)	$ 1,513,645	$ 69,274
Common stock shares beginning at Dec. 31, 2022		54,751
Treasury stock shares beginning at Dec. 31, 2022			(9,282)
Total comprehensive income attributable to common stockholders	212,188				227,182	(14,994)	212,188
Total comprehensive income	215,654							3,466
Net changes in noncontrolling interests	(3,804)							(3,804)
Common stock issued for share-based plans, shares		474
Common stock issued for share-based plans		$ 316		(316)
Share-based compensation	30,545			30,545			30,545
Deferred compensation plan, shares			(5)
Deferred compensation plan			$ (496)	496
Tax related to net share settlement	(15,637)			(15,637)			(15,637)
BALANCE at Dec. 31, 2023	1,809,677	$ 36,819	$ (337,986)	509,861	1,675,274	(143,227)	1,740,741	68,936
Common stock shares ending at Dec. 31, 2023		55,225
Treasury stock shares ending at Dec. 31, 2023			(9,287)
Total comprehensive income attributable to common stockholders	40,527				44,024	(3,497)	40,527
Total comprehensive income	47,345							6,818
Net changes in noncontrolling interests	(1,255)			853			853	(2,108)
Common stock issued for share-based plans, shares		396
Common stock issued for share-based plans		$ 264		(264)
Share-based compensation	22,741			22,741			22,741
Deferred compensation plan, shares			(1)
Deferred compensation plan			$ (114)	114
Tax related to net share settlement	(9,561)			(9,561)			(9,561)
BALANCE at Dec. 31, 2024	$ 1,868,947	$ 37,083	$ (338,100)	523,744	1,719,298	(146,724)	1,795,301	73,646
Common stock shares ending at Dec. 31, 2024	46,332,891	55,621
Treasury stock shares ending at Dec. 31, 2024	9,288,420		(9,288)
Total comprehensive income attributable to common stockholders	$ 102,118				66,141	35,977	102,118
Total comprehensive income	105,147							3,029
Net changes in noncontrolling interests	(23,244)			(6,854)			(6,854)	(16,390)
Common stock issued for share-based plans, shares		263
Common stock issued for share-based plans		$ 176		(176)
Share-based compensation	25,712			25,712			25,712
Tax related to net share settlement	(4,339)			(4,339)			(4,339)
Stock buyback, shares			(720)
Stock buyback	(33,814)		$ (33,814)				(33,814)
BALANCE at Dec. 31, 2025	$ 1,938,409	$ 37,259	$ (371,914)	$ 538,087	$ 1,785,439	$ (110,747)	$ 1,878,124	$ 60,285
Common stock shares ending at Dec. 31, 2025	45,875,799	55,884
Treasury stock shares ending at Dec. 31, 2025	10,008,905		(10,008)

Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Operating leases:
Operating lease ROU assets	$ 52,033	$ 53,749
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Current operating lease liabilities	$ 10,666	$ 10,863
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities and Other Liabilities	Accrued Liabilities and Other Liabilities
Noncurrent operating lease liabilities	$ 28,890	$ 28,648
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Total operating lease liabilities	$ 39,556	$ 39,511
Finance leases:
Finance lease ROU assets	$ 2,765	$ 2,708
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Accumulated amortization	$ (2,641)	$ (2,606)
Finance lease ROU assets, net	124	102
Current finance lease liabilities	$ 43	$ 40
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities and Other Liabilities	Accrued Liabilities and Other Liabilities
Non-current finance lease liabilities	$ 80	$ 63
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Total finance lease liabilities	$ 123	$ 103
Weighted average remaining lease term (in years):
Operating leases	7 years 2 months 12 days	6 years 7 months 6 days
Finance leases	2 years 9 months 18 days	3 years 3 months 18 days
Weighted average discount rate:
Operating leases	4.10%	4.00%
Finance leases	3.60%	3.60%

CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 4,095	$ 7,799
Preferred stock par value	$ 1	$ 1
Preferred stock shares authorized	1,000,000	1,000,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value	$ 0.66	$ 0.66
Common stock shares authorized	70,000,000	70,000,000
Common stock shares issued	45,875,799	46,332,891
Common stock shares outstanding	45,875,799	46,332,891
Treasury stock, shares	10,008,905	9,288,420

Leases

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Leases

Note 9 – Leases

The Company leases certain assets used in its business, including land, buildings, and equipment. These leased assets are used for operational and administrative purposes.

The table below sets forth the components of lease expense for the twelve months ended December 31:


	2025		2024		2023
Operating lease expense	$	14,508	$	14,407	$	13,066
Finance lease expense:
Amortization of assets		28		29		32
Interest on lease liabilities		4		4		3
Short-term lease expense		2,313		2,260		1,899
Variable lease expense		4,858		4,893		4,350
Total lease expense	$	21,711	$	21,593	$	19,350

The table below sets forth supplemental balance sheet information related to leases as of December 31:


	2025			2024
Operating leases:
Operating lease ROU assets	$	52,033		$	53,749

Current operating lease liabilities		10,666			10,863
Noncurrent operating lease liabilities		28,890			28,648
Total operating lease liabilities	$	39,556		$	39,511

Finance leases:
Finance lease ROU assets	$	2,765		$	2,708
Accumulated amortization		(2,641	)		(2,606	)
Finance lease ROU assets, net	$	124		$	102

Current finance lease liabilities	$	43		$	40
Non-current finance lease liabilities		80			63
Total finance lease liabilities	$	123		$	103

Weighted average remaining lease term (in years):
Operating leases		7.2			6.6
Finance leases		2.8			3.3

Weighted average discount rate:
Operating leases		4.1	%		4.0	%
Finance leases		3.6	%		3.6	%

The table below sets forth supplemental cash flow and other information related to leases for the twelve months ended December 31:


	2025		2024		2023
Cash paid for the amounts included in the measurements of lease liabilities:
Operating cash outflows from operating leases	$	19,577	$	21,220	$	18,609
Operating cash outflows from finance leases		4		4		3
Financing cash outflow from finance leases		85		64		115

ROU assets obtained in exchange for lease liabilities incurred:
Operating leases		11,189		12,864		14,251

The table below sets forth information about lease liability maturities:


	December 31,
	Operating Leases			Finance Leases
2026	$	12,989		$	47
2027		9,705			44
2028		5,696			36
2029		2,620			3
2030		2,581			-
2031		2,525			-
2032 and thereafter		10,295			-
Total lease payments		46,411			130
Less: imputed interest		(6,855	)		(7	)
Total lease obligations		39,556			123
Less: current obligations		(10,666	)		(43	)
Long-term lease obligations	$	28,890		$	80

Acquisitions and Divestitures - Schedule of Business Combination of Revenue and Earnings in Consolidated Statement of Income (Details) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Combination [Line Items]
Net loss		$ 69,170	$ 50,842	$ 230,648
Fortemedia
Business Combination [Line Items]
Net sales	$ 8,297
Net loss	$ (1,808)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-4

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-URI https://asc.fasb.org/1943274/2147479303/805-10-55-47

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+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details

Related Party Transactions - Schedule of Net Sales and Purchases of Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Keylink
Related Party Transaction [Line Items]
Net sales	$ 208	$ 3,485	$ 12,595
Purchases from related parties	564	1,241	1,535
Plating, rental and consulting expense	13,895	14,970	16,916
Nuvoton
Related Party Transaction [Line Items]
Net sales	72	65	49
Purchases from related parties	6,454	7,076	10,454
JCP
Related Party Transaction [Line Items]
Purchases from related parties	105	243	364
Atlas
Related Party Transaction [Line Items]
Purchases from related parties	10,340	4,493	177
ATX
Related Party Transaction [Line Items]
Purchases from related parties	$ 15	$ 0	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Equity Investments - Additional Information (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended				12 Months Ended
	Jun. 30, 2025	May 31, 2025	Apr. 30, 2023	Jul. 31, 2021	Dec. 31, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Long-term equity investments					$ 156.3	$ 86.5
Equity investments, fair value					97.4	55.5
Non-Cash Mark to Market Adjustments					28.6	$ 0.3
GAPT
Variable Interest Entity [Line Items]
Percentage of ownership interest	43.00%	43.00%
ATX
Variable Interest Entity [Line Items]
Long-term equity investments					$ 27.0
Fabless Wafer Design Company
Variable Interest Entity [Line Items]
Payments for convertible promissory note				$ 5.0
Increase Decrease on Mark to Market Adjustment	$ 33.3
Subsidiary, Ownership Percentage, Noncontrolling Owner					50.00%
Fabless Wafer Design Company \| Preferred Stock
Variable Interest Entity [Line Items]
Business acquisition, shares acquired	12.3		13.9	10.0
Conversion of convertible note in to preferred stock			$ 5.2

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 5 – Property, Plant, and Equipment

Property, plant and equipment at December 31 were:


	2025			2024
Buildings and leasehold improvements	$	366,669		$	352,670
Machinery and equipment		1,349,750			1,276,038
		1,716,419			1,628,708
Less: Accumulated depreciation and amortization		(1,224,786	)		(1,108,320	)
		491,633			520,388
Construction in-progress		84,510			91,736
Land		73,462			72,135
	$	649,605		$	684,259

Depreciation and amortization of property, plant and equipment was $121.5 million, $120.6 million, and $122.0 million for the twelve months ended December 31, 2025, 2024, and 2023, respectively.

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 367,212	$ 308,671
Restricted cash	5,134	6,053
Short-term investments	9,817	7,464
Accounts receivable, net of allowances of $4,095 and $7,799 at December 31, 2025 and December 31, 2024, respectively	307,055	325,517
Inventories	471,546	474,948
Prepaid expenses and other	96,198	101,500
Total current assets	1,256,962	1,224,153
Property, plant, and equipment, net	649,605	684,259
Deferred income tax	59,297	51,974
Goodwill	183,437	181,555
Intangible assets, net	45,455	67,397
Other long-term assets	253,344	176,943
Total assets	2,448,100	2,386,281
Current liabilities:
Lines of credit	30,264	31,429
Accounts payable	149,376	133,765
Accrued liabilities and other	180,922	186,576
Income tax payable	16,336	22,730
Current portion of long-term debt	1,442	1,096
Total current liabilities	378,340	375,596
Long-term debt, net of current portion	24,224	19,563
Deferred tax liabilities	6,145	6,953
Unrecognized tax benefits	23,454	24,646
Other long-term liabilities	77,528	90,576
Total liabilities	509,691	517,334
Commitments and contingencies (See Note 17)
Stockholders' equity
Preferred stock - par value $1.00 per share; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock - par value $0.66 2/3 per share; 70,000,000 shares authorized; and 45,875,799 shares and 46,332,891 shares issued and outstanding at December 31, 2025 and December 31, 2024, respectively	37,259	37,083
Additional paid-in capital	538,087	523,744
Retained earnings	1,785,439	1,719,298
Treasury stock, at cost, 10,008,905 shares and 9,288,420 shares at December 31, 2025 and December 31, 2024, respectively	(371,914)	(338,100)
Accumulated other comprehensive loss	(110,747)	(146,724)
Total stockholders' equity	1,878,124	1,795,301
Noncontrolling interest	60,285	73,646
Total equity	1,938,409	1,868,947
Total liabilities and stockholders' equity	$ 2,448,100	$ 2,386,281

Leases - Schedule of Operating and Finance Lease Liability Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating Leases, 2026	$ 12,989
Operating Leases, 2027	9,705
Operating Leases, 2028	5,696
Operating Leases, 2029	2,620
Operating Leases, 2030	2,581
Operating Leases, 2031	2,525
Operating Leases, 2032 and thereafter	10,295
Operating Leases, Total lease payments	46,411
Operating Leases, Less: imputed interest	(6,855)
Total operating lease liabilities	39,556	$ 39,511
Operating Leases, Less: current obligations	(10,666)	(10,863)
Noncurrent operating lease liabilities	28,890	28,648
Finance Leases, 2026	47
Finance Leases, 2027	44
Finance Leases, 2028	36
Finance Leases, 2029	3
Finance Leases, 2030	0
Finance Leases, 2031	0
Finance Leases, 2032 and thereafter	0
Finance Leases, Total lease payments	130
Finance Leases, Less: imputed interest	(7)
Total finance lease liabilities	123	103
Finance Leases, Less: current obligations	(43)	(40)
Non-current finance lease liabilities	$ 80	$ 63

Equity Investments (Tables)

12 Months Ended

Dec. 31, 2025

Investments, Debt and Equity Securities [Abstract]

Schedule of Variable Interest Entities

The following is a summary of the Company’s holdings in Atlas, a VIE, in which we are not the primary beneficiary:


	December 31,
	2025		2024
VIE total assets	$	39,620	$	20,273
VIE total liabilities		10,659		4,945

Diodes' preferred equity in VIE	$	90,035	$	44,420
Diodes' note receivable from VIE		9,000		4,000
Diodes' interest receivable from VIE		628		245
Diodes' maximum exposure to loss	$	99,663	$	48,665

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings (numerator)
Net Income (Loss)	$ 66,141	$ 44,024	$ 227,182
Shares (denominator)
Weighted average common shares outstanding (basic)	46,340,000	46,208,000	45,803,000
Dilutive effect of stock options and stock awards outstanding	74,000	200,000	508,000
Adjusted weighted average common shares outstanding (diluted)	46,414,000	46,408,000	46,311,000
Earnings per share attributable to common stockholders
Basic	$ 1.43	$ 0.95	$ 4.96
Diluted	$ 1.43	$ 0.95	$ 4.91
Stock options and stock awards excluded from EPS calculation because their inclusion would be anti-dilutive	571	233	138

Restructuring Costs - Schedule of Costs Accrued Related to the Restructuring (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 212	$ 317
Costs accrued	394	8,591	$ 1,583
Costs paid		(8,696)
Ending balance		212	317
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Beginning balance	0	0
Costs accrued		3,266
Costs paid		(3,266)
Ending balance		0	0
Contract Termination
Restructuring Cost and Reserve [Line Items]
Beginning balance	0	207
Costs accrued		(62)
Costs paid		(145)
Ending balance		0	207
Employee Severance
Restructuring Cost and Reserve [Line Items]
Beginning balance	0	0
Costs accrued		4,496
Costs paid		(4,496)
Ending balance		0	0
Other
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 212	110
Costs accrued		891
Costs paid		(789)
Ending balance		$ 212	$ 110

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Income Taxes - Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Beginning Balance	$ 44,391	$ 48,838	$ 48,072
Additions based on tax positions related to the current year	2,838	4,955	11,370
Additions for prior year tax positions	10,677	6,900	110
Reductions for prior year tax positions	(9,519)	(16,302)	(10,714)
Ending Balance	$ 48,387	$ 44,391	$ 48,838

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2025

Schedule of Net Sales and Purchases of Related Party Transactions


	2025		2024		2023
Keylink
Net sales	$	208	$	3,485	$	12,595
Purchases	$	564	$	1,241	$	1,535
Plating, rental, and consulting expense	$	13,895	$	14,970	$	16,916
Nuvoton
Net sales	$	72	$	65	$	49
Purchases	$	6,454	$	7,076	$	10,454
JCP
Purchases	$	105	$	243	$	364
Atlas
Purchases	$	10,340	$	4,493	$	177
ATX
Purchases	$	15	$	-	$	-

Schedule of Account Receivable and Payable of Related Party Transactions

The table below sets forth accounts receivable from and accounts payable to related parties at December 31:


	2025		2024
Keylink
Accounts receivable	$	25,415	$	23,796
Accounts payable	$	27,837	$	26,522
Nuvoton
Accounts receivable	$	9	$	31
Accounts payable	$	1,131	$	543
JCP
Accounts payable	$	-	$	64
Atlas
Accounts payable	$	721	$	558
ATX
Accounts payable	$	12	$	-

Earnings per Share

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Earnings per Share

Note 2 – Earnings per Share

Basic earnings per share is calculated by dividing net earnings attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is calculated similarly but includes potential dilution from the exercise of stock options and stock awards, except when the effect would be anti-dilutive. Earnings per share are computed using the “treasury stock method.”


	Twelve Months Ended December 31,
	2025		2024		2023
Earnings (numerator)
Net income attributable to common stockholders	$	66,141	$	44,024	$	227,182

Shares (denominator)
Weighted average common shares outstanding (basic)		46,340		46,208		45,803
Dilutive effect of stock options and stock awards outstanding		74		200		508
Adjusted weighted average common shares outstanding (diluted)		46,414		46,408		46,311

Earnings per share attributable to common stockholders
Basic	$	1.43	$	0.95	$	4.96
Diluted	$	1.43	$	0.95	$	4.91

Stock options and stock awards excluded from EPS calculation because their inclusion would be anti-dilutive		571		233		138

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Income Taxes - Schedule of Income Taxes Paid (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Paid, by Individual Jurisdiction [Line Items]
Federal	$ 0	$ 0	$ 39,000
State	4	0	36
Total	24,157	21,534	97,668
Taiwan
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	8,467	10,541	29,471
China
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	7,341	6,961	11,578
United Kingdom
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	2,692	640	12,224
Germany
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	5,163	2,275	(598)
Hong Kong
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	0	1,013	5,908
Other jurisdictions
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign	$ 488	$ 103	$ 49

Dividends

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

Dividends

Note 11 – Dividends

We have never declared or paid cash dividends on our Common Stock. The Credit Facility permits us to pay dividends up to $75.0 million per fiscal year to its stockholders so long as we have not defaulted under the Credit Agreement at the time of such dividend and no default would result from declaring or paying such dividend. The payment of dividends is within the discretion of our Board of Directors. See Note 8 for additional information regarding our credit agreements.

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2025

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The table below sets forth net periodic benefit costs of the plan for the twelve months ended December 31:


	Defined Benefit Plan
	2025			2024
Components of net periodic benefit cost:
Service cost	$	395		$	383
Interest cost		5,282			4,664
Recognized actuarial gain		(5,619	)		3,708
Expected return on plan assets		3,878			(5,920	)
Prior service cost		68			66
Net periodic benefit cost	$	4,004		$	2,901

Schedule of Benefit Obligation, Fair Value of Plan Assets, and Funded Status of our Plan

The table below sets forth the benefit obligation, the fair value of plan assets, and the funded status as of December 31:


	Defined Benefit Plan
	2025			2024
Change in benefit obligation:
Beginning balance	$	95,572		$	108,108
Service cost		395			383
Interest cost		5,282			4,664
Actuarial (gain) loss		(3,621	)		(10,605	)
Benefits paid		(5,990	)		(5,284	)
Currency changes		6,946			(1,694	)
Benefit obligation at December 31	$	98,584		$	95,572

Change in plan assets:
Beginning balance - fair value		88,289		$	98,016
Employer contribution		5,506			2,939
Actual return on plan assets		3,029			(5,813	)
Benefits paid		(5,990	)		(5,284	)
Currency changes		6,547			(1,569	)
Fair value of plan assets at December 31	$	97,381		$	88,289
Underfunded status at December 31	$	(1,203	)	$	(7,283	)

Schedule of Assumptions Used

The following weighted-average assumptions were used to determine net periodic benefit costs for the twelve months ended December 31:


	2025	2024
Discount rate	5.5%	4.4%
Expected long-term return on plan assets	5.6%	6.2%

The following weighted-average assumption was used to determine the benefit obligations at December 31:


	2025	2024
Discount rate	5.5%	5.4%

Schedule of Allocation Of Plan Assets

The table below sets forth the plan asset allocations of the assets in the plan and expected long-term return by asset category:


Asset category	Expected long-term return	Asset allocation
Growth assets	6.6%	48%
Hedging assets	5.0%	34%
Cash	3.8%	18%

Schedule of Expected Benefit Payments


2026	$	6,527
2027		6,230
2028		6,341
2029		6,327
2030		6,652
2031-2035		33,962

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets

The following table summarizes the major categories of the plan assets:


	December 31, 2025
Asset category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	12,523	$	-	$	-	$	12,523
Equity securities:
U.K.		-		531		-		531
Overseas equities		-		14,091		-		14,091
Emerging markets		-		2,579		-		2,579
Fixed income securities:
Government bonds		-		43		-		43
Non-government bonds		-		8,619		-		8,619
Other types of investments
Hedge funds		-		18,558		-		18,558
Liability-driven investments		-		35,389		-		35,389
Commodities		-		947		-		947
Other		-		4,101		-		4,101
Total	$	12,523	$	84,858	$	-	$	97,381


	December 31, 2024
Asset category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	5,736	$	-	$	-	$	5,736
Equity securities:
U.K.		-		527		-		527
Overseas equities		-		13,227		-		13,227
Emerging markets		-		2,070		-		2,070
Fixed income securities:
Government bonds		-		78		-		78
Non-government bonds		-		15,569		-		15,569
Other types of investments
Hedge funds		-		15,983		-		15,983
Liability-driven investments		-		31,492		-		31,492
Commodities		-		795		-		795
Other		-		2,812		-		2,812
Total	$	5,736	$	82,553	$	-	$	88,289

Segment Information, Revenue and Enterprise-Wide Disclosures (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Net Sales from Based on Location of the Subsidiary

The tables below set forth net sales based on the location of the subsidiary producing the net sale for the twelve months ended December 31, 2025, 2024, and 2023 :


2025	Asia			Americas			Europe			Consolidated
Total sales	$	1,639,747		$	1,080,705		$	255,779		$	2,976,231
Inter-company sales		(739,238	)		(602,347	)		(152,573	)		(1,494,158	)
Net sales	$	900,509		$	478,358		$	103,206		$	1,482,073

Property, plant, and equipment	$	488,295		$	68,294		$	93,016		$	649,605
Assets	$	1,627,268		$	559,170		$	261,662		$	2,448,100

2024	Asia			Americas			Europe			Consolidated
Total sales	$	1,441,590		$	910,955		$	271,137		$	2,623,682
Inter-company sales		(625,864	)		(546,649	)		(140,049	)		(1,312,562	)
Net sales	$	815,726		$	364,306		$	131,088		$	1,311,120

Property, plant, and equipment	$	502,171		$	76,626		$	105,462		$	684,259
Assets	$	1,697,072		$	461,872		$	227,337		$	2,386,281

2023	Asia			Americas			Europe			Consolidated
Total sales	$	1,560,595		$	1,210,561		$	378,442		$	3,149,598
Inter-company sales		(684,927	)		(670,624	)		(132,308	)		(1,487,859	)
Net sales	$	875,668		$	539,937		$	246,134		$	1,661,739

Property, plant, and equipment	$	545,865		$	85,005		$	115,299		$	746,169
Assets	$	1,600,858		$	544,247		$	222,554		$	2,367,659

Schedule of Net Sales by Direct Sales or Distributor and Location


Net Sales by Region	2025		2024		2023
Asia	$	1,156,823	$	1,020,256	$	1,181,519
Europe		185,223		188,402		287,549
Americas		140,027		102,462		192,671
Total net sales	$	1,482,073	$	1,311,120	$	1,661,739

Net Sales by Type	2025		2024		2023
Direct sales	$	522,368	$	479,845	$	530,446
Distributor sales		959,705		831,275		1,131,293
Total net sales	$	1,482,073	$	1,311,120	$	1,661,739

The table below sets forth the location to where products were shipped, representing 10% or more of net sales for the twelve months ended December 31, 2025, 2024, and 2023: .


	2025		2024		2023
China	$	660,280	$	589,507	$	704,829
Singapore	$	141,939	$	137,351	$	194,613
Taiwan	$	143,949	$	136,316	$	116,152

Schedule of Revenue from Major Customers


	2025		2024		2023
Customer 1	$	182,314	$	167,242	$	201,583
Customer 2	$	157,735	$	-	$	183,626

Accrued Liabilities and Other Current Liabilities, and Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Accrued Liabilities, Current [Abstract]
Accrued expenses	$ 73,364	$ 70,983
Compensation and payroll taxes	46,389	44,887
Equipment purchases	15,841	13,065
Operating lease	10,666	10,863
Finance lease	43	40
Accrued pricing adjustments	27,183	36,826
Accrued professional services	3,792	4,596
Tax payable - non-income tax related	3,379	3,158
Other	265	2,158
Accrued Liabilities, Current, Total	180,922	186,576
Liabilities, Noncurrent [Abstract]
Accrued defined benefit plan	3,382	9,635
Operating lease	28,890	28,648
Finance lease	80	63
Deferred grants and subsidy	8,289	8,986
Deferred compensation	20,344	18,136
Tax contingencies	9,218	9,218
Other	7,325	15,890
Other long-term liabilities, Total	$ 77,528	$ 90,576

Segment Information, Revenue and Enterprise-Wide Disclosures - Schedule of Net Sales From Based on Location of the Subsidiary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Property, plant, and equipment, net	649,605	684,259	746,169
Total assets	2,448,100	2,386,281	2,367,659
Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,976,231	2,623,682	3,149,598
Intercompany sales
Segment Reporting Information [Line Items]
Net sales	(1,494,158)	(1,312,562)	(1,487,859)
Asia
Segment Reporting Information [Line Items]
Net sales	900,509	815,726	875,668
Property, plant, and equipment, net	488,295	502,171	545,865
Total assets	1,627,268	1,697,072	1,600,858
Asia \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,639,747	1,441,590	1,560,595
Asia \| Intercompany sales
Segment Reporting Information [Line Items]
Net sales	(739,238)	(625,864)	(684,927)
Americas
Segment Reporting Information [Line Items]
Net sales	478,358	364,306	539,937
Property, plant, and equipment, net	68,294	76,626	85,005
Total assets	559,170	461,872	544,247
Americas \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,080,705	910,955	1,210,561
Americas \| Intercompany sales
Segment Reporting Information [Line Items]
Net sales	(602,347)	(546,649)	(670,624)
Europe
Segment Reporting Information [Line Items]
Net sales	103,206	131,088	246,134
Property, plant, and equipment, net	93,016	105,462	115,299
Total assets	261,662	227,337	222,554
Europe \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	255,779	271,137	378,442
Europe \| Intercompany sales
Segment Reporting Information [Line Items]
Net sales	$ (152,573)	$ (140,049)	$ (132,308)

- Definition

Amount of asset recognized for present right to economic benefit.

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities
Net income	$ 69,170	$ 50,842	$ 230,648
Adjustments to reconcile net income to net cash provided by operating activities, net of effects of acquisitions
Depreciation	121,520	120,637	122,048
Amortization of intangible assets	22,227	16,499	15,282
Amortization of debt-issuance costs	301	302	1,117
Share-based compensation expense	25,745	22,767	30,911
Deferred income taxes	(7,477)	(1,001)	(13,349)
Investment (gain) loss	(25,870)	267	(19,398)
Gain on sale of subsidiary	(13,730)	0	0
Impairment of long-lived assets	5,816	0	0
Gain on disposal of fixed assets	572	(7,641)	(2,045)
Interest income from derivative financial instruments	(20,034)	(10,409)	(4,304)
Other	796	(2,341)	(2,409)
Changes in operating assets:
Change in accounts receivable	22,687	47,276	(2,611)
Change in inventory	9,095	(87,497)	(28,947)
Change in other operating assets	12,357	3,478	(17,971)
Changes in operating liabilities:
Change in accounts payable	13,786	(23,436)	(2,165)
Change in accrued liabilities	(13,670)	(3,144)	(17,749)
Change in income tax (refundable) payable	(7,478)	12,408	(9,307)
Change in unrealized tax benefit liability	(1,422)	(15,312)	2,942
Change in other operating liabilities	1,122	(4,260)	(1,779)
Net cash and cash equivalents from operating activities	215,513	119,435	280,914
Cash flows from investing activities
Acquisitions, net of cash received	(5,310)	(56,661)	(3)
Purchases of property, plant and equipment	(78,362)	(73,024)	(150,769)
Proceeds from sale of property, plant and equipment	6,991	816	2,769
Proceeds from short-term investments	7,629	16,360	6,157
Purchases of short-term investments	(9,720)	(14,026)	(9,323)
Purchases of equity securities	(49,303)	0	(17,901)
Proceeds from sale of subsidiary	15,958	0	0
Receipt of government grants	585	8,659	471
Receipt of insurance recovery	0	4,725	1,413
Proceeds from disposal of wafer fabrication facility	0	0	6,292
Net amounts (paid) received for hedge termination	(4,000)	0	374
Other	(646)	(4,889)	2,198
Net cash and cash equivalents from investing activities	(116,178)	(118,040)	(158,322)
Cash flows from financing activities
Advances on lines of credit and short-term debt	59,073	90,766	29,036
Repayments of lines of credit and short-term debt	(61,922)	(98,354)	(24,509)
Proceeds from long-term debt	11,746	6,439	25,204
Repayments of long-term debt	(7,729)	(6,458)	(154,019)
Debt issuance costs	0	(188)	(948)
Repayment of and proceeds from finance lease obligation	(85)	(64)	(115)
Taxes paid related to net share settlement	(4,339)	(9,561)	(15,637)
Net changes in noncontrolling interests	(18,104)	(2,079)	(3,647)
Repurchases of common stock	(33,814)	0	0
Other	363	155	(88)
Net cash and cash equivalents from financing activities	(54,811)	(19,344)	(144,723)
Effect of exchange rate changes on cash and cash equivalents	13,098	14,190	(485)
Change in cash and cash equivalents, including restricted cash	57,622	(3,759)	(22,616)
Cash and cash equivalents, beginning of period, including restricted cash	314,724	318,483	341,099
Cash and cash equivalents, end of period, including restricted cash	372,346	314,724	318,483
Supplemental Cash Flow Information
Interest paid during the period	1,683	2,035	4,607
Taxes paid during the period	24,157	21,534	97,668
Non-cash investing and financing activities:
Accounts payable balance related to the purchase of property, plant and equipment	15,841	13,065	14,602
Dividend payable balance to noncontrolling interests	$ 0	$ 0	$ 100

Derivative Financial Instruments - Summary of Information Related to Number of Instruments and Notional Amounts of Cross Currency Swaps (Details) - Collared forwards - Designated as Hedging Instrument $ in Thousands	Dec. 31, 2025 USD ($) DerivativeInstruments	Dec. 31, 2024 USD ($) DerivativeInstruments
Derivative [Line Items]
Number of Instruments \| DerivativeInstruments	4	6
Notional Amount \| $	$ 534,310	$ 1,084,432

- Definition

The number of derivative instruments of a particular group held by the entity.

+ References + Details

Restructuring Costs

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

Restructuring Costs

Note 21 – Restructuring costs

During 2025, 2024, and 2023, the Company consolidated and restructured certain activities performed throughout the Company. The expense recorded in 2025 was immaterial.


	For the Twelve Months Ended December 31,
	2024			2023
Asset impairment	$	3,266		$	200
Contract termination		(62	)		207
Employee severance		4,496			1,139
Other		891			37
	$	8,591		$	1,583


	Asset Impairment			Contract Termination			Employee Severance			Other			Total
Ending balance, December 31, 2023	$	-		$	207		$	-		$	110		$	317
Costs accrued		3,266			(62	)		4,496			891			8,591
Costs paid		(3,266	)		(145	)		(4,496	)		(789	)		(8,696	)
Ending balance, December 31, 2024	$	-		$	-		$	-		$	212		$	212

Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 270,997	$ 271,000
Accumulated Amortization	(226,544)	(204,317)
Currency Exchange	(8,370)	(8,507)
Total	36,083	58,176
Gross Carrying Amount	10,303	10,303
Currency Exchange	(931)	(1,082)
Net	9,372	9,221
Intangible Assets, Gross (Excluding Goodwill), Total	281,300	281,303
Total Intangible Assets - Accumulated Amortization	(226,544)	(204,317)
Total Intangible Assets - Currency Exchange and Other	(9,301)	(9,589)
Total Intangible Assets - Net	45,455	67,397
Trademarks and Trade Names
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	10,303	10,303
Currency Exchange	(931)	(1,082)
Net	9,372	9,221
Patents
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	16,037	16,040
Accumulated Amortization	(16,211)	(15,954)
Currency Exchange	418	404
Total	$ 244	$ 490
Patents \| Minimum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	5 years	5 years
Patents \| Maximum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	15 years	15 years
Developed Product Technology
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 182,499	$ 182,499
Accumulated Amortization	(147,422)	(134,123)
Currency Exchange	(7,081)	(7,146)
Total	$ 27,996	$ 41,230
Developed Product Technology \| Minimum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	2 years	2 years
Developed Product Technology \| Maximum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	10 years	10 years
Customer Relationships
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 69,718	$ 69,718
Accumulated Amortization	(60,234)	(51,563)
Currency Exchange	(1,641)	(1,699)
Total	$ 7,843	$ 16,456
Customer Relationships \| Minimum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	7 years	7 years
Customer Relationships \| Maximum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	12 years	12 years
Software License And Other
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 2,743	$ 2,743
Accumulated Amortization	(2,677)	(2,677)
Currency Exchange	(66)	(66)
Total	$ 0	$ 0
Software License And Other \| Minimum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	3 years	3 years
Software License And Other \| Maximum
Intangible Assets Net Excluding Goodwill [Line Items]
Useful life	4 years	4 years

Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Designated as Hedging Instrument \| Cross Currency Swaps
Derivative Instruments Gain Loss [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative		$ 8,450	$ (1,442)
Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from Effectiveness Testing)	Interest income
Amount of Gain Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)		1,219	1,653
Designated as Hedging Instrument \| Collared forwards
Derivative Instruments Gain Loss [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivative	$ 11,908	1,535	(10,202)
Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from Effectiveness Testing)	Interest income
Amount of Gain Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ 20,034	10,409	4,304
Not Designated as Hedging Instrument \| Foreign Currency Forward Contracts
Derivative Instruments Gain Loss [Line Items]
Amount of Gain or (Loss) Recognized in Net Income	$ (4,870)	$ (10,458)	$ (5,364)

Inventories - Schedule of Inventory Current (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Inventory Disclosure [Abstract]
Finished goods	$ 171,369	$ 203,665
Work-in-progress	91,143	80,232
Raw materials	209,034	191,051
Total	$ 471,546	$ 474,948

Accrued Liabilities and Other Long-Term Liabilities

12 Months Ended

Dec. 31, 2025

Accrued Liabilities [Abstract]

Accrued Liabilities and Other Long-Term Liabilities

Note 10 – Accrued Liabilities and Other Long-Term Liabilities

Accrued liabilities and other current liabilities at December 31 were:


	2025		2024
Accrued expenses	$	73,364	$	70,983
Compensation and payroll taxes		46,389		44,887
Equipment purchases		15,841		13,065
Operating lease		10,666		10,863
Finance lease		43		40
Accrued pricing adjustments		27,183		36,826
Accrued professional services		3,792		4,596
Tax payable - non-income tax related		3,379		3,158
Other		265		2,158
	$	180,922	$	186,576

Other long-term liabilities at December 31 were:


	2025		2024
Accrued defined benefit plan	$	3,382	$	9,635
Operating lease		28,890		28,648
Finance lease		80		63
Deferred grants and subsidy		8,289		8,986
Deferred compensation		20,344		18,136
Tax contingencies		9,218		9,218
Other		7,325		15,890
	$	77,528	$	90,576

Fair Value Measurements - Schedule of Financial Assets At Fair Value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	$ 9,817	$ 7,464
Long-term investments	20,574	23,933
Deferred compensation investments	19,959	17,173
Trading Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Long-term investments, Changes in Fair Value Included in Current Period Earnings	(4,754)	(42)
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	2,244	1,769
Collard forward asset
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative instruments, asset derivatives	11,454	593
Collard forward liability
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative instruments, liability derivatives	(2,558)	8,071
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	9,817	7,464
Long-term investments	20,574	23,933
Deferred compensation investments	1,196	4,397
Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Deferred compensation investments	18,763	12,776
Significant Other Observable Inputs (Level 2) \| Collard forward asset
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative instruments, asset derivatives	11,454	593
Significant Other Observable Inputs (Level 2) \| Collard forward liability
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of derivative instruments, liability derivatives	$ (2,558)	$ 8,071

Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Intangible Assets

Intangible assets at December 31 were as follows:


December 31, 2025
Intangible Assets	Useful life	Gross Carrying Amount		Accumulated Amortization			Currency Exchange			Net
Amortized intangible assets
Patents	5-15 years	$	16,037	$	(16,211	)	$	418		$	244
Developed product technology	2-10 years		182,499		(147,422	)		(7,081	)		27,996
Customer relationships	7-12 years		69,718		(60,234	)		(1,641	)		7,843
Software license and other	3-4 years		2,743		(2,677	)		(66	)		-
Total amortized intangible assets			270,997		(226,544	)		(8,370	)		36,083
Intangible assets with indefinite lives
Trademarks and trade names	Indefinite		10,303		-			(931	)		9,372
Total Intangible assets with indefinite lives			10,303		-			(931	)		9,372
Total intangible assets		$	281,300	$	(226,544	)	$	(9,301	)	$	45,455

December 31, 2024
Intangible Assets	Useful life	Gross Carrying Amount		Accumulated Amortization			Currency Exchange			Net
Amortized intangible assets
Patents	5-15 years	$	16,040	$	(15,954	)	$	404		$	490
Developed product technology	2-10 years		182,499		(134,123	)		(7,146	)		41,230
Customer relationships	7-12 years		69,718		(51,563	)		(1,699	)		16,456
Software license and other	3-4 years		2,743		(2,677	)		(66	)		-
Total amortized intangible assets			271,000		(204,317	)		(8,507	)		58,176
Intangible assets with indefinite lives
Trademarks and trade names	Indefinite		10,303		-			(1,082	)		9,221
Total Intangible assets with indefinite lives			10,303		-			(1,082	)		9,221
Total intangible assets		$	281,303	$	(204,317	)	$	(9,589	)	$	67,397

Schedule of Expected Amortization Expense

The schedule below sets forth future amortization expense of our currently owned intangible assets:


2026	$	15,660
2027		14,671
2028		3,673
2029		642
2030		558
2031 and thereafter		879
Total	$	36,083

Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization of intangibles	$ 22,227	$ 16,499	$ 15,282
Weighted amortization period for intangible assets	9 years 4 months 24 days

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476153/220-40-55-18

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476153/220-40-55-11

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476153/220-40-55-24

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-12

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482686/350-30-45-2

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-6

+ Details

Bank Credit Agreements and Other Short-Term and Long-Term Debt - Schedule of Maturities of Long Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Long-Term Debt, by Current and Noncurrent [Abstract]
2026	$ 1,442
2027	12,407
2028	10,430
2029	550
2030	321
2031 and thereafter	516
Total long-term debt	$ 25,666	$ 20,659

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

+ Details

Inventories (Tables)

12 Months Ended

Dec. 31, 2025

Inventory Disclosure [Abstract]

Schedule of Inventory Current

Inventories, stated at the lower of cost or market value, at December 31 were:


	2025		2024
Finished goods	$	171,369	$	203,665
Work-in-progress		91,143		80,232
Raw materials		209,034		191,051
	$	471,546	$	474,948

Commitments and Contingencies - Summary of Land Right Leases (Details)

12 Months Ended

Dec. 31, 2025

Chengdu, China

Commitments And Contingencies [Line Items]

Land right lease term

50 years

Land Right Lease, Expiration Year

2061

Shanghai, China

Commitments And Contingencies [Line Items]

Land right lease term

50 years

^[1]

Land Right Lease, Expiration Year

2056

^[1]

Shanghai 1, China

Commitments And Contingencies [Line Items]

Land right lease term

50 years

^[1]

Land Right Lease, Expiration Year

2058

^[1]

Shandong, China

Commitments And Contingencies [Line Items]

Land right lease term

50 years

Land Right Lease, Expiration Year

2058

Yangzhou, China

Commitments And Contingencies [Line Items]

Land right lease term

50 years

Land Right Lease, Expiration Year

2065

[1]	Separate leases by separate Diodes’ subsidiaries

Leases - Supplemental Cash Flow and Other Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash paid for the amounts included in the measurements of lease liabilities:
Operating cash outflows from operating leases	$ 19,577	$ 21,220	$ 18,609
Operating cash outflows from finance leases	4	4	3
Financing cash outflow from finance leases	85	64	115
ROU assets obtained in exchange for lease liabilities incurred:
Operating leases	$ 11,189	$ 12,864	$ 14,251

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2025

Dec. 31, 2024

Dec. 31, 2023

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

US federal statutory tax rate

$ 17,632

$ 13,163

$ 58,366

State and local income tax, net of federal income tax effect

^[1]

(144)

123

Tax account adjustment

(1,327)

(0)

Changes in valuation allowance

(792)

Liability for unrecognized tax benefits

(3,228)

(9,290)

4,536

Effect of cross-border tax laws, amount

Global intangible low-taxed income

3,826

4,426

(379)

Foreign derived intangible income

(1,362)

(14,617)

Other

322

(130)

(2,159)

Tax credits, amount

Research and development tax incentives

(956)

(1,400)

(1,200)

Nontaxable or nondeductible items, amount

Share-based payment awards

2,212

953

227

Other

239

(347)

(1,109)

Total income tax provision

$ 14,789

$ 11,840

$ 47,285

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, US federal statutory tax rate

^[2]

21.00%

Income tax rate, State and local income tax, net of federal income tax effect

^[1],[2]

(0.20%)

0.20%

0.00%

Income tax rate, Tax account adjustment

^[2]

(1.60%)

0.00%

Income tax rate, Changes in valuation allowances

^[2]

(0.90%)

0.00%

Income tax rate, Liability for unrecognized tax benefits

^[2]

(3.80%)

(14.80%)

1.60%

Effect of cross-border tax laws, percent

Income tax rate, Global intangible low-taxed income

^[2]

4.60%

7.10%

(0.10%)

Income tax rate, Foreign derived intangible income

^[2]

(1.70%)

0.00%

(5.30%)

Income tax rate, Other

^[2]

0.30%

(0.20%)

(0.80%)

Tax credits, percent

Income tax rate, Research and development tax credits

^[2]

(1.10%)

(2.20%)

(0.40%)

Nontaxable or nondeductible items, percent

Income tax rate, Share-based payment awards

^[2]

2.60%

1.50%

0.10%

Income tax rate, Other

^[2]

0.30%

(0.60%)

(0.40%)

Income tax rate, Total

^[2]

17.60%

18.90%

17.00%

United Kingdom

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 303

$ 815

$ 628

Tax account adjustment

1,907

Other

$ 523

$ 631

$ 752

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.40%

1.30%

0.20%

Income tax rate, Tax account adjustment

^[2]

0.00%

3.00%

0.00%

Income tax rate, Other

^[2]

0.60%

1.00%

0.30%

China

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 1,002

$ 2,202

$ 1,729

Tax holidays

(2,689)

(1,490)

(1,533)

Changes in valuation allowance

2,060

Withholding taxes

1,598

(3,479)

11,121

Other

163

(69)

183

Tax credits, amount

Research and development tax incentives

$ (4,400)

$ (3,148)

$ (4,487)

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

1.20%

3.50%

0.60%

Income tax rate, Tax holidays

^[2]

(3.20%)

(2.40%)

(0.60%)

Income tax rate, Changes in valuation allowances

^[2]

2.50%

0.00%

Income tax rate, Withholding taxes

^[2]

1.90%

(5.60%)

4.00%

Income tax rate, Other

^[2]

0.20%

(0.10%)

0.10%

Tax credits, percent

Income tax rate, Research and development tax credits

^[2]

(5.20%)

(5.00%)

(1.60%)

Taiwan

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ (285)

$ (512)

$ (127)

Changes in valuation allowance

(1,729)

(3,067)

1,864

Withholding taxes

(254)

1,092

(5,369)

Other

$ (672)

$ 404

$ (1,520)

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

(0.30%)

(0.80%)

0.00%

Income tax rate, Changes in valuation allowances

^[2]

(2.10%)

(4.90%)

0.70%

Income tax rate, Withholding taxes

^[2]

(0.30%)

1.70%

(1.90%)

Income tax rate, Other

^[2]

(0.80%)

0.60%

(0.50%)

Germany

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 183

$ 2,709

$ 663

Other

$ (435)

$ 1,545

$ 413

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.20%

4.30%

0.20%

Income tax rate, Other

^[2]

(0.50%)

2.50%

0.10%

Hong Kong

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 283

$ 325

$ (36)

Other

$ (803)

$ 1,045

$ (535)

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.30%

0.50%

0.00%

Income tax rate, Other

^[2]

(1.00%)

1.70%

(0.20%)

Luxembourg

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 571

$ 430

$ (295)

Losses not benefitted

672

1,826

Other

$ 0

$ 13

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.70%

(0.10%)

Income tax rate, Losses not benefitted

^[2]

0.80%

3.00%

0.00%

Income tax rate, Other

^[2]

0.00%

Singapore

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 272

$ 0

Changes in valuation allowance

1,509

Other

$ 387

$ 0

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.30%

0.00%

Income tax rate, Changes in valuation allowances

^[2]

1.80%

0.00%

Income tax rate, Other

^[2]

0.50%

0.00%

Other Foreign Jurisdictions

Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]

Foreign tax rate differential

$ 108

$ 1,176

$ 102

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Income tax rate, Foreign tax rate differential

^[2]

0.10%

1.90%

0.00%

[1]	State taxes in California and Texas made up the majority (greater than 50% of the tax effect in this category).
[2]	The sum of the amounts in the table may not equal the effective rate due to rounding.

Acquisitions and Divestitures - Business Acquisition Unaudited Pro Forma Information (Details) - Fortemedia - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Net sales	$ 1,334,446	$ 1,693,230
Net income	49,465	218,815
Net income attributable to common stockholders	$ 42,647	$ 215,349
Earnings per share - basic	$ 0.92	$ 4.7
Earnings per share - diluted	$ 0.92	$ 4.65

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Summary of Operations and Significant Accounting Policies - Additional Information (Details)	1 Months Ended	12 Months Ended
	May 31, 2025 USD ($) $ / shares	Dec. 31, 2025 USD ($) Segment $ / shares	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($) $ / shares
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Product returns and other allowances		$ 331,000,000	$ 346,800,000	$ 262,800,000
Allowance for doubtful accounts		$ 4,100,000	7,800,000
Number of operating segment \| Segment		1
Number of reportable segments \| Segment		1
Impairment of goodwill		$ 0	0	0
Cost of goods sold		1,019,637,000	$ 875,258,000	1,003,557,000
Stock repurchase, authorized amount		$ 33,800,000
Common stock par value \| $ / shares	$ 0.66	$ 0.66	$ 0.66
Share repurchase, expiration date	Dec. 31, 2030
Increase in net income		$ 66,141,000	$ 44,024,000	$ 227,182,000
Basic \| $ / shares		$ 1.43	$ 0.95	$ 4.96
Diluted \| $ / shares		$ 1.43	$ 0.95	$ 4.91
Total inventory reserve		$ 471,546,000	$ 474,948,000
Inventory Obsolescence
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Cost of goods sold			4,500,000
Increase in net income			$ 3,800,000
Basic \| $ / shares			$ 0.08
Diluted \| $ / shares			$ 0.08
Total inventory reserve			$ 5,600,000
Shipping and Handling
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Cost of goods sold		$ 20,300,000	$ 18,000,000	$ 20,800,000
Minimum \| Building
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		20 years
Minimum \| Machinery and Equipment
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		3 years
Minimum \| Leaseholds and Leasehold Improvements
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		3 years
Maximum
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Stock repurchase, authorized amount	$ 100,000,000
Maximum \| Building
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		55 years
Maximum \| Machinery and Equipment
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		10 years
Maximum \| Leaseholds and Leasehold Improvements
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Estimated useful lives		5 years
Acquired Businesses
Summary of Operations, Significant Accounting Policies, Recently Issued Accounting Pronouncements and Updates to Accounting Policies and Estimates [Line Items]
Ownership percentage		100.00%

Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted


	Twelve Months Ended December 31,
	2025		2024		2023
Earnings (numerator)
Net income attributable to common stockholders	$	66,141	$	44,024	$	227,182

Shares (denominator)
Weighted average common shares outstanding (basic)		46,340		46,208		45,803
Dilutive effect of stock options and stock awards outstanding		74		200		508
Adjusted weighted average common shares outstanding (diluted)		46,414		46,408		46,311

Earnings per share attributable to common stockholders
Basic	$	1.43	$	0.95	$	4.96
Diluted	$	1.43	$	0.95	$	4.91

Stock options and stock awards excluded from EPS calculation because their inclusion would be anti-dilutive		571		233		138

Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Schedule of Share-Based Compensation Expense

The table below sets forth the line items where share-based compensation expense was recorded for the twelve months ended December 31:


	2025		2024		2023
Cost of goods sold	$	2,224	$	2,073	$	1,860
Selling, general and administrative expense		18,491		15,690		24,470
Research and development expense		5,030		5,004		4,581
Total share-based compensation expense	$	25,745	$	22,767	$	30,911

Summary of Nonvested Share Grants

The table below sets forth a summary of our non-vested share grants in 2025, 2024, and 2023:


Restricted Stock Grants	Shares			Weighted Average Grant Date Fair Value ($)		Aggregate Intrinsic Value
Nonvested at December 31, 2023		1,223			81.02	$	98,493
Granted		517			70.96
Vested		(535	)		74.66	$	37,078
Forfeited and other		(57	)		80.22
Nonvested at December 31, 2024		1,148			79.56	$	70,824
Granted		547			55.22
Vested		(341	)		78.22	$	18,609
Forfeited and other		(113	)		86.62
Nonvested at December 31, 2025		1,241			68.59	$	61,275