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Employee Benefits And Stock-Based Compensation (Stock Based Compensation to RSUs Information) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of Verisign's stock	$ 242.95
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 226.12	$ 194.76	$ 212.80
Income Tax Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit on stock-based compensation	$ 14.6	$ 12.4	$ 11.7
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of unvested RSUs	174.1
Fair values of vested RSUs	73.9	$ 52.6	$ 58.8
Total unrecognized compensation cost	$ 109.7
Weighted-average period of recognition for unrecognized compensation cost (in years)	2 years 4 months 24 days
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units with performance condition	200,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units with performance condition	100,000
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units with performance condition	400,000

Segment Reporting (Narrative) (Details)	12 Months Ended
Segment Reporting (Narrative) (Details)	Dec. 31, 2025 numberOfReportableSegments
Segment Reporting [Abstract]
Number of Reportable Segments	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	Board of Directors Chairman [Member], Chief Executive Officer [Member]
Segment Reporting, Expense Information Used by CODM, Description	The chief operating decision maker assesses performance and decides how to allocate resources based on revenues, operating income and net income as reported on the Consolidated Statement of Comprehensive Income.Revenues, operating income and net income are used to evaluate budget versus actual results and the overall return generated by the segment assets. The analysis of these financial results, among other metrics, is used to assess performance and drives employee incentive compensation, as well as executive compensation.
Segment Reporting, Other Segment Item, Composition, Description	Other segment items that are a part of the Company’s segment net income include professional services expenses, legal expenses, telecommunication expenses, marketing expenses, occupancy expenses, and travel expenses.

Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2025

Revenues [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table presents the Company’s revenues disaggregated by geography, based on the billing addresses of our customers:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
U.S	$	1,093.1	$	1,035.5	$	994.7
EMEA	279.4		249.6		228.2
APAC	184.6		175.7		174.8
Other	99.5		96.6		95.4
Total revenues	$	1,656.6	$	1,557.4	$	1,493.1

Calculation Of Net Income Per Share (Weighted-Average Shares Used In Calculation Of Basic And Diluted EPS) (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Weighted-average number of common shares outstanding	93.5	98.1	103.4
Unvested RSUs and ESPP	0.3	0.1	0.1
Shares used to compute diluted net income per share	93.8	98.2	103.5

Other Balance Sheet Items (Long-term Tax and Other Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Other Liabilities Disclosure [Abstract]
Deferred Income Taxes and Other Tax Liabilities, Noncurrent	$ 5.4	$ 6.1
Long-Term Operating Lease Liabilities	4.0	4.0
Other Liabilities, Noncurrent	$ 9.4	$ 10.1

Consolidated Statements Of Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues	$ 1,656.6	$ 1,557.4	$ 1,493.1
Costs and expenses:
Cost of revenues	196.3	191.4	197.3
Research and development	103.6	96.7	91.0
Selling, General and Administrative Expense	235.7	211.1	204.2
Total costs and expenses	535.6	499.2	492.5
Operating income	1,121.0	1,058.2	1,000.6
Interest expense	(77.0)	(75.3)	(75.3)
Non-operating income, net	24.5	39.0	51.2
Income from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	1,068.5	1,021.9	976.5
Income tax expense	(242.8)	(236.2)	(158.9)
Net income	825.7	785.7	817.6
Other Comprehensive Income (Loss), Net of Tax	(0.2)	0.1	0.1
Comprehensive income	$ 825.5	$ 785.8	$ 817.7
Earnings per share
Earnings per Share, Basic	$ 8.83	$ 8.01	$ 7.91
Earnings per Share, Diluted	$ 8.81	$ 8.00	$ 7.90
Shares used to compute net income per share
Basic	93.5	98.1	103.4
Diluted	93.8	98.2	103.5

Stockholders' Deficit

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

Stockholders' Deficit

Stockholders’ Deficit

Treasury Stock

Treasury stock is accounted for under the cost method. Treasury stock includes shares repurchased under stock repurchase programs and shares withheld in lieu of the tax withholding due upon vesting of RSUs.

Effective July 24, 2025, the Company’s Board of Directors authorized the repurchase of its common stock in the amount of approximately $913.1 million, in addition to the $586.9 million that remained available for repurchases under the share repurchase program, for a total authorization of up to $1.50 billion under the program. The program has no expiration date. Purchases made under the program could be effected through open market transactions, block purchases, accelerated share repurchase agreements or other negotiated transactions. As of December 31, 2025, there was approximately $1.08 billion remaining available for repurchases under the program.

The summary of the Company’s common stock repurchases are as follows:


	2025				2024				2023
	Shares		Average Price		Shares		Average Price		Shares		Average Price
	(In millions, except average price amounts)
Total repurchases under the repurchase plans	3.4		$	252.42	6.6		$	183.84	4.2		$	210.28
Total repurchases for tax withholdings	0.1		$	247.80	0.1		$	188.23	0.1		$	211.29
Total repurchases	3.5		$	252.29	6.7		$	183.90	4.3		$	210.30
Total costs	$	881.6			$	1,225.6			$	901.4

Since inception, the Company has repurchased 263.7 million shares of its common stock for an aggregate cost of $15.76 billion, which is recorded as a reduction of Additional paid-in capital. The share repurchase and authorization amounts disclosed within this Form 10-K exclude the excise tax on share repurchases.

The Company initiated a quarterly cash dividend in April 2025. A summary of the Company’s dividend activities for the periods presented is as follows:


Record Date	Payment Date	Dividend Per Share		Total
		(In millions, except per share amounts)
May 19, 2025	May 28, 2025	$	0.77	$	72.1
August 19, 2025	August 27, 2025	0.77		72.0
November 18, 2025	November 25, 2025	0.77		71.1
		$	2.31	$	215.2

The dividends were accounted for as a reduction of Additional paid-in capital. On February 3, 2026, our Board of Directors declared a cash dividend of $0.81 per share of the Company’s outstanding common stock to stockholders of record as of the close of business on February 19, 2026, payable on February 27, 2026. The Company intends to continue to pay a cash dividend on a quarterly basis, subject to market conditions and approval by the Company’s Board of Directors.

Accumulated Other Comprehensive Loss

The Accumulated other comprehensive loss balances as of December 31, 2025 and 2024 primarily consists of foreign currency translation adjustment losses. There were no significant changes to accumulated other comprehensive loss balances for the periods presented.

- Definition

The entire disclosure for equity.

+ References

+ Details

Stockholders' Deficit (Schedule of Common Stock Repurchase) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
Treasury Stock Shares Repurchased	3.4	6.6	4.2
Treasury Stock Shares Repurchased For Tax Withholdings And Other	0.1	0.1	0.1
Treasury Stock, Shares, Acquired	3.5	6.7	4.3
Treasury Stock Shares Repurchased, Average Cost Per Share	$ 252.42	$ 183.84	$ 210.28
Treasury stock shares repurchased for tax withholdings and other, average cost per share	247.80	188.23	211.29
Treasury Stock Acquired, Average Cost Per Share	$ 252.29	$ 183.90	$ 210.30
Payments for Repurchase of Common Stock	$ 881.6	$ 1,225.6	$ 901.4

Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Millions	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized shares	5.0	5.0
Preferred stock, issued shares	0.0	0.0
Preferred stock, outstanding shares	0.0	0.0
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized shares	1,000.0	1,000.0
Common Stock, Shares, Issued	355.6	355.2
Common stock, outstanding shares	91.9	95.0

Description Of Business And Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2025
Description Of Business And Summary Of Significant Accounting Policies [Abstract]
Cash And Cash Equivalents	Cash and Cash Equivalents Verisign considers all highly-liquid investments purchased with original maturities of three months or less to be cash equivalents. Cash and cash equivalents include certain money market funds, debt securities and various deposit accounts. Verisign maintains its cash and cash equivalents with financial institutions that have investment grade ratings and, as part of its cash management process, performs periodic evaluations of the relative credit standing of these financial institutions.
Marketable Securities	Marketable Securities Marketable securities primarily consist of debt securities issued by the U.S. Treasury. All marketable securities are classified as available-for-sale and are carried at fair value. Unrealized gains and losses, net of taxes, are reported as a component of Accumulated other comprehensive loss. The specific identification method is used to determine the cost basis of the marketable securities sold. The Company classifies its marketable securities as current based on their nature and availability for use in current operations. The Company amortizes the discount on debt securities purchased below par value over the term of the instrument, and recognizes the amounts as interest income included in Non-operating income, net.
Property And Equipment	Property and Equipment Property and equipment are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets of 35 to 47 years for buildings, 10 years for building improvements and three years to six years for computer equipment, software, office equipment, and furniture and fixtures. Leasehold improvements are amortized using the straight-line method over the lesser of the estimated useful lives of the assets or associated lease terms. Certain assets included in Property and equipment, net on the Consolidated Balance Sheets were classified as held for sale. These assets were not material.
Capitalized Software	Capitalized Software Software included in property and equipment includes amounts paid for purchased software and development costs for internally developed software. The Company capitalized $6.0 million and $6.7 million of costs related to internally developed software during 2025 and 2024, respectively.
Goodwill And Other Long-Lived Assets	Goodwill and Other Long-lived Assets Goodwill represents the excess of purchase consideration over fair value of net assets of businesses acquired. The Company has only one reporting unit, which has a negative carrying value. Therefore, the goodwill is not subject to impairment. Long-lived assets, such as property, plant, and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset, or asset group, may not be recoverable. Such events or circumstances include, but are not limited to, a significant decrease in the fair value of the underlying business. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset, or asset group, to estimated undiscounted future cash flows expected to be generated by the asset, or asset group. An impairment charge is recognized in the amount by which the carrying amount of the asset exceeds its fair value. As of December 31, 2025, the Company’s assets include a deposit related to the purchase of the contractual rights to the .web gTLD. The amount paid to date has been recorded as a deposit until such time that the contractual rights are transferred to the Company. This asset would be tested for recoverability if the Company were to determine that it is no longer probable that the rights will be transferred. At the time of the transfer of the contractual rights, the Company will record the amount as an indefinite-lived intangible asset subject to review for impairment on an annual basis or more frequently if events or changes in circumstances indicate that an impairment is more likely than not.
Foreign Currency Remeasurement	Foreign Currency Remeasurement Verisign conducts business in several different countries and transacts in multiple currencies. The functional currency for all of Verisign’s international subsidiaries is the U.S. dollar. The Company’s subsidiaries’ financial statements are remeasured into U.S. dollars using a combination of current and historical exchange rates and any remeasurement gains and losses are included in Non-operating income, net. The Company recognized net remeasurement gains of $14.7 million in 2023. Net remeasurement gains and losses were not significant in 2025 and 2024. Verisign maintains a foreign currency risk management program designed to mitigate foreign exchange risks associated with the monetary assets and liabilities that are denominated in currencies other than the U.S. dollar. The primary objective of this program is to minimize the gains and losses resulting from fluctuations in exchange rates. The Company does not enter into foreign currency transactions for trading or speculative purposes, nor does it hedge foreign currency exposures in a manner that entirely offsets the effects of changes in exchange rates. The program may entail the use of forward or option contracts, which are derivatives and are recorded at fair market value. The Company records gains and losses on foreign currency forward contracts in Non-operating income, net. The Company recognized a $9.8 million loss related to foreign currency forward contracts in 2023. Gains and losses related to foreign currency forward contracts were not significant in 2025 and 2024. As of December 31, 2025, Verisign held foreign currency forward contracts in notional amounts totaling $67.7 million to mitigate the impact of exchange rate fluctuations associated with certain assets and liabilities held in foreign currencies.
Revenue Recognition	Revenue Recognition Revenues are recognized when control of the promised services is transferred to customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services. Revenues primarily arise from fixed fees charged to registrars for the initial registration or renewal of .com, .net, and other domain names. Individual customers, called registrants, contract directly with registrars or their resellers, and the registrars, who are our direct customers, in turn register the domain names with Verisign. Fees for domain name registrations and renewals are generally due at the time of registration or renewal. Domain name registration terms range from one year up to ten years. Most customers either maintain a deposit with Verisign or provide an irrevocable letter of credit in excess of the amounts owed. Verisign also offers promotional incentive-based discount programs to its registrars based upon market conditions and the business environment in which the registrars operate. Amounts payable for these programs are recorded as a reduction of revenue. Performance Obligations A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Each domain name registration or renewal is considered a separate optional purchase and represents a single performance obligation, which is to allow its registration and maintain that registration (by allowing updates, DNS resolution and Whois and Registration Data Access Protocol services, which allow users to find information about registered domain names) through the registration term. These services are provided continuously throughout each registration term, and as such, revenues from the initial registration or renewal of domain names are deferred and recognized ratably over the registration term. Fees for renewals and advance extensions to the existing term are deferred until the new incremental period commences. These fees are then recognized ratably over the renewal or extension term. Costs Incurred to Obtain a Contract The Company recognizes the fees payable to ICANN for each annual term of domain name registrations and renewals as an asset, which is amortized on a straight-line basis over the related registration term. These assets are included in Other current assets and Other long-term assets.
Income Taxes	Income Taxes Verisign uses the asset and liability method to account for income taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and net operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company records a valuation allowance to reduce deferred tax assets to an amount whose realization is more likely than not. The Company does not consider various minimum taxes imposed in certain jurisdictions for purposes of evaluating whether a deferred tax asset will be realized. For every tax-paying component and within each tax jurisdiction, all deferred tax liabilities and assets are offset and presented as a single net noncurrent asset or liability. The Company recognizes the U.S. income tax effect of future global intangible low-taxed income inclusions in the period in which they arise. The Company’s income taxes payable are reduced by the tax benefits from restricted stock unit (“RSU”) vestings equal to the fair market value of the stock at the vesting date. If the income tax benefit at the vesting date differs from the income tax benefit recorded based on the grant date fair value of the RSUs, the excess or shortfall of the tax benefit is recognized within income tax expense. Verisign operates in multiple tax jurisdictions in the United States and internationally. Tax laws and regulations in these jurisdictions are complex, interrelated, and periodically changing. Significant judgment or interpretation of these laws and regulations is often required in determining the Company’s worldwide provision for income taxes, including, for example, the calculations of taxable income in each jurisdiction, deferred taxes, and the availability and amount of deductions and tax credits. The final taxes payable are dependent upon many factors, including negotiations with taxing authorities in various jurisdictions and resolution of disputes arising from various tax examinations. The Company only recognizes tax positions taken or expected to be taken on its tax returns that are more likely than not to be sustained upon examination, and records a tax benefit amount that is more likely than not to be realized upon ultimate settlement with the taxing authority. The Company adjusts its estimate of unrecognized tax benefits in light of changing facts and circumstances; however, due to the complexity of some of these uncertainties, the ultimate resolution may result in an outcome that is materially different from the estimate. See Note 11, “Income Taxes,” for details of the changes to the Company’s unrecognized tax benefits for the periods presented.
Stock-Based Compensation	Stock-based Compensation The Company’s stock-based compensation consists of RSUs granted to employees and the employee stock purchase plan (“ESPP”). Stock-based compensation expense is typically recognized ratably over the requisite service period. Forfeitures of stock-based awards are recognized as they occur. As substantially all of the RSUs granted by the Company are routine annual grants, none of the awards are designed to be spring-loaded, and as such, the Company does not adjust the market price of its common stock when estimating the grant-date fair value of these awards. The Company also grants RSUs which include performance conditions, and in some cases market conditions, to certain executives. The expense for these performance-based RSUs is recognized based on the probable outcome of the performance conditions. The expense recognized for awards with market conditions is based on the grant date fair value of the awards including the impact of the market conditions, using a Monte Carlo simulation model. The Company uses the Black-Scholes option pricing model to determine the fair value of its ESPP offerings. The determination of the fair value of stock-based payment awards using the Monte Carlo simulation model or the Black-Scholes option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables.
Earnings Per Share	Earnings per Share The Company computes basic earnings per share by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share gives effect to dilutive potential common shares, including unvested RSUs and ESPP offerings, using the treasury stock method.
Fair Value Of Financial Instruments	Fair Value of Financial Instruments The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: •Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. •Level 2: Inputs reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. •Level 3: Unobservable inputs reflecting the Company’s own assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available.
Legal Proceedings	Legal Proceedings Verisign is involved in various investigations, claims and lawsuits arising in the normal conduct of its business, none of which, in its opinion, will have a material adverse effect on its financial condition, results of operations, or cash flows. The Company can provide no assurance that it will prevail in any litigation. Regardless of the outcome, any litigation may require the Company to incur significant litigation expense and may result in significant diversion of management attention. While certain legal proceedings and related indemnification obligations to which the Company is a party specify the amounts claimed, such claims may not represent reasonably possible losses. Given the inherent uncertainties of the litigation, the ultimate outcome of these matters cannot be predicted at this time, nor can the amount of possible loss or range of loss, if any, be reasonably estimated, except in circumstances where an aggregate litigation accrual has been recorded for probable and reasonably estimable loss contingencies. A determination of the amount of accrual required, if any, for these contingencies is made after careful analysis of each matter. The required accrual may change in the future due to new developments in each matter or changes in approach such as a change in settlement strategy in dealing with these matters. The Company does not believe that any such matter currently being reviewed will have a material adverse effect on its financial condition, results of operations, or cash flows.
New Accounting Pronouncements	Adoption of New Accounting Standards The Company adopted Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which improves the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the effective tax rate reconciliation and income taxes paid disaggregated by jurisdiction. This guidance has been applied prospectively. The adoption of ASU 2023-09 did not have a material impact on the Company’s consolidated financial statements. Refer to Note 11, “Income Taxes,” for income tax disclosures. Recent Accounting Pronouncements In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires additional disclosure of certain costs and expenses within the notes to the financial statements. This guidance will be effective for our 2027 Form 10-K. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In September 2025, the FASB issued ASU No. 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which clarifies and modernizes certain aspects of the accounting for and disclosure of internal-use software costs. The ASU does not change what types of costs are capitalized or when internal-use software cost capitalization ceases. This guidance will be effective for the Company in 2028. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements.

Description Of Business And Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2025
Description Of Business And Summary Of Significant Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	Description of Business and Summary of Significant Accounting Policies Description of Business VeriSign, Inc. (“Verisign” or “the Company”) was incorporated in Delaware on April 12, 1995. The Company has one reportable segment. The Company helps enable the security, stability, and resiliency of the Domain Name System (“DNS”) and the internet by providing Root Zone Maintainer services, operating two of the thirteen global internet root servers, and providing registration services and authoritative resolution for the .com and .net top-level domains, which support the majority of global e-commerce. Basis of Presentation The accompanying consolidated financial statements of Verisign and its subsidiaries have been prepared in conformity with generally accepted accounting principles (“GAAP”) in the United States (“U.S.”). All significant intercompany accounts and transactions have been eliminated. The preparation of these consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions. Significant Accounting Policies Cash and Cash Equivalents Verisign considers all highly-liquid investments purchased with original maturities of three months or less to be cash equivalents. Cash and cash equivalents include certain money market funds, debt securities and various deposit accounts. Verisign maintains its cash and cash equivalents with financial institutions that have investment grade ratings and, as part of its cash management process, performs periodic evaluations of the relative credit standing of these financial institutions. Marketable Securities Marketable securities primarily consist of debt securities issued by the U.S. Treasury. All marketable securities are classified as available-for-sale and are carried at fair value. Unrealized gains and losses, net of taxes, are reported as a component of Accumulated other comprehensive loss. The specific identification method is used to determine the cost basis of the marketable securities sold. The Company classifies its marketable securities as current based on their nature and availability for use in current operations. The Company amortizes the discount on debt securities purchased below par value over the term of the instrument, and recognizes the amounts as interest income included in Non-operating income, net. Property and Equipment Property and equipment are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets of 35 to 47 years for buildings, 10 years for building improvements and three years to six years for computer equipment, software, office equipment, and furniture and fixtures. Leasehold improvements are amortized using the straight-line method over the lesser of the estimated useful lives of the assets or associated lease terms. Certain assets included in Property and equipment, net on the Consolidated Balance Sheets were classified as held for sale. These assets were not material. Capitalized Software Software included in property and equipment includes amounts paid for purchased software and development costs for internally developed software. The Company capitalized $6.0 million and $6.7 million of costs related to internally developed software during 2025 and 2024, respectively. Goodwill and Other Long-lived Assets Goodwill represents the excess of purchase consideration over fair value of net assets of businesses acquired. The Company has only one reporting unit, which has a negative carrying value. Therefore, the goodwill is not subject to impairment. Long-lived assets, such as property, plant, and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset, or asset group, may not be recoverable. Such events or circumstances include, but are not limited to, a significant decrease in the fair value of the underlying business. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset, or asset group, to estimated undiscounted future cash flows expected to be generated by the asset, or asset group. An impairment charge is recognized in the amount by which the carrying amount of the asset exceeds its fair value. As of December 31, 2025, the Company’s assets include a deposit related to the purchase of the contractual rights to the .web gTLD. The amount paid to date has been recorded as a deposit until such time that the contractual rights are transferred to the Company. This asset would be tested for recoverability if the Company were to determine that it is no longer probable that the rights will be transferred. At the time of the transfer of the contractual rights, the Company will record the amount as an indefinite-lived intangible asset subject to review for impairment on an annual basis or more frequently if events or changes in circumstances indicate that an impairment is more likely than not. Foreign Currency Remeasurement Verisign conducts business in several different countries and transacts in multiple currencies. The functional currency for all of Verisign’s international subsidiaries is the U.S. dollar. The Company’s subsidiaries’ financial statements are remeasured into U.S. dollars using a combination of current and historical exchange rates and any remeasurement gains and losses are included in Non-operating income, net. The Company recognized net remeasurement gains of $14.7 million in 2023. Net remeasurement gains and losses were not significant in 2025 and 2024. Verisign maintains a foreign currency risk management program designed to mitigate foreign exchange risks associated with the monetary assets and liabilities that are denominated in currencies other than the U.S. dollar. The primary objective of this program is to minimize the gains and losses resulting from fluctuations in exchange rates. The Company does not enter into foreign currency transactions for trading or speculative purposes, nor does it hedge foreign currency exposures in a manner that entirely offsets the effects of changes in exchange rates. The program may entail the use of forward or option contracts, which are derivatives and are recorded at fair market value. The Company records gains and losses on foreign currency forward contracts in Non-operating income, net. The Company recognized a $9.8 million loss related to foreign currency forward contracts in 2023. Gains and losses related to foreign currency forward contracts were not significant in 2025 and 2024. As of December 31, 2025, Verisign held foreign currency forward contracts in notional amounts totaling $67.7 million to mitigate the impact of exchange rate fluctuations associated with certain assets and liabilities held in foreign currencies. Revenue Recognition Revenues are recognized when control of the promised services is transferred to customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services. Revenues primarily arise from fixed fees charged to registrars for the initial registration or renewal of .com, .net, and other domain names. Individual customers, called registrants, contract directly with registrars or their resellers, and the registrars, who are our direct customers, in turn register the domain names with Verisign. Fees for domain name registrations and renewals are generally due at the time of registration or renewal. Domain name registration terms range from one year up to ten years. Most customers either maintain a deposit with Verisign or provide an irrevocable letter of credit in excess of the amounts owed. Verisign also offers promotional incentive-based discount programs to its registrars based upon market conditions and the business environment in which the registrars operate. Amounts payable for these programs are recorded as a reduction of revenue. Performance Obligations A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Each domain name registration or renewal is considered a separate optional purchase and represents a single performance obligation, which is to allow its registration and maintain that registration (by allowing updates, DNS resolution and Whois and Registration Data Access Protocol services, which allow users to find information about registered domain names) through the registration term. These services are provided continuously throughout each registration term, and as such, revenues from the initial registration or renewal of domain names are deferred and recognized ratably over the registration term. Fees for renewals and advance extensions to the existing term are deferred until the new incremental period commences. These fees are then recognized ratably over the renewal or extension term. Costs Incurred to Obtain a Contract The Company recognizes the fees payable to ICANN for each annual term of domain name registrations and renewals as an asset, which is amortized on a straight-line basis over the related registration term. These assets are included in Other current assets and Other long-term assets. Income Taxes Verisign uses the asset and liability method to account for income taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and net operating loss carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company records a valuation allowance to reduce deferred tax assets to an amount whose realization is more likely than not. The Company does not consider various minimum taxes imposed in certain jurisdictions for purposes of evaluating whether a deferred tax asset will be realized. For every tax-paying component and within each tax jurisdiction, all deferred tax liabilities and assets are offset and presented as a single net noncurrent asset or liability. The Company recognizes the U.S. income tax effect of future global intangible low-taxed income inclusions in the period in which they arise. The Company’s income taxes payable are reduced by the tax benefits from restricted stock unit (“RSU”) vestings equal to the fair market value of the stock at the vesting date. If the income tax benefit at the vesting date differs from the income tax benefit recorded based on the grant date fair value of the RSUs, the excess or shortfall of the tax benefit is recognized within income tax expense. Verisign operates in multiple tax jurisdictions in the United States and internationally. Tax laws and regulations in these jurisdictions are complex, interrelated, and periodically changing. Significant judgment or interpretation of these laws and regulations is often required in determining the Company’s worldwide provision for income taxes, including, for example, the calculations of taxable income in each jurisdiction, deferred taxes, and the availability and amount of deductions and tax credits. The final taxes payable are dependent upon many factors, including negotiations with taxing authorities in various jurisdictions and resolution of disputes arising from various tax examinations. The Company only recognizes tax positions taken or expected to be taken on its tax returns that are more likely than not to be sustained upon examination, and records a tax benefit amount that is more likely than not to be realized upon ultimate settlement with the taxing authority. The Company adjusts its estimate of unrecognized tax benefits in light of changing facts and circumstances; however, due to the complexity of some of these uncertainties, the ultimate resolution may result in an outcome that is materially different from the estimate. See Note 11, “Income Taxes,” for details of the changes to the Company’s unrecognized tax benefits for the periods presented. Stock-based Compensation The Company’s stock-based compensation consists of RSUs granted to employees and the employee stock purchase plan (“ESPP”). Stock-based compensation expense is typically recognized ratably over the requisite service period. Forfeitures of stock-based awards are recognized as they occur. As substantially all of the RSUs granted by the Company are routine annual grants, none of the awards are designed to be spring-loaded, and as such, the Company does not adjust the market price of its common stock when estimating the grant-date fair value of these awards. The Company also grants RSUs which include performance conditions, and in some cases market conditions, to certain executives. The expense for these performance-based RSUs is recognized based on the probable outcome of the performance conditions. The expense recognized for awards with market conditions is based on the grant date fair value of the awards including the impact of the market conditions, using a Monte Carlo simulation model. The Company uses the Black-Scholes option pricing model to determine the fair value of its ESPP offerings. The determination of the fair value of stock-based payment awards using the Monte Carlo simulation model or the Black-Scholes option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. Earnings per Share The Company computes basic earnings per share by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share gives effect to dilutive potential common shares, including unvested RSUs and ESPP offerings, using the treasury stock method. Fair Value of Financial Instruments The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: •Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. •Level 2: Inputs reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. •Level 3: Unobservable inputs reflecting the Company’s own assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. Legal Proceedings Verisign is involved in various investigations, claims and lawsuits arising in the normal conduct of its business, none of which, in its opinion, will have a material adverse effect on its financial condition, results of operations, or cash flows. The Company can provide no assurance that it will prevail in any litigation. Regardless of the outcome, any litigation may require the Company to incur significant litigation expense and may result in significant diversion of management attention. While certain legal proceedings and related indemnification obligations to which the Company is a party specify the amounts claimed, such claims may not represent reasonably possible losses. Given the inherent uncertainties of the litigation, the ultimate outcome of these matters cannot be predicted at this time, nor can the amount of possible loss or range of loss, if any, be reasonably estimated, except in circumstances where an aggregate litigation accrual has been recorded for probable and reasonably estimable loss contingencies. A determination of the amount of accrual required, if any, for these contingencies is made after careful analysis of each matter. The required accrual may change in the future due to new developments in each matter or changes in approach such as a change in settlement strategy in dealing with these matters. The Company does not believe that any such matter currently being reviewed will have a material adverse effect on its financial condition, results of operations, or cash flows. Adoption of New Accounting Standards The Company adopted Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which improves the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the effective tax rate reconciliation and income taxes paid disaggregated by jurisdiction. This guidance has been applied prospectively. The adoption of ASU 2023-09 did not have a material impact on the Company’s consolidated financial statements. Refer to Note 11, “Income Taxes,” for income tax disclosures. Recent Accounting Pronouncements In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires additional disclosure of certain costs and expenses within the notes to the financial statements. This guidance will be effective for our 2027 Form 10-K. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements. In September 2025, the FASB issued ASU No. 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which clarifies and modernizes certain aspects of the accounting for and disclosure of internal-use software costs. The ASU does not change what types of costs are capitalized or when internal-use software cost capitalization ceases. This guidance will be effective for the Company in 2028. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements.

Consolidated Statements Of Stockholders' Equity (Deficit) - USD ($) $ in Millions	Total	Common Stock Including Additional Paid in Capital	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total [Member]
Total stockholders' deficit at Dec. 31, 2022		$ 12,644.5	$ (14,204.0)	$ (2.7)	$ (1,562.2)
Repurchase of common stock		901.4
Dividends, Common Stock, Cash		0.0
Stock-based compensation		60.8
Stock Issued During Period, Value, Employee Stock Purchase Plan		12.3
Excise tax on repurchase of common stock		(8.2)
Net income	$ 817.6		817.6
Other Comprehensive Income (Loss), Net of Tax	$ 0.1			0.1
Total stockholders' deficit at Dec. 31, 2023		11,808.0	(13,386.4)	(2.6)	(1,581.0)
Common Stock, Dividends, Per Share, Cash Paid	$ 0
Repurchase of common stock		1,225.6
Dividends, Common Stock, Cash		0.0
Stock-based compensation		62.1
Stock Issued During Period, Value, Employee Stock Purchase Plan		12.3
Excise tax on repurchase of common stock		(11.5)
Net income	$ 785.7		785.7
Other Comprehensive Income (Loss), Net of Tax	0.1			0.1
Total stockholders' deficit at Dec. 31, 2024	$ (1,957.9)	10,645.3	(12,600.7)	(2.5)	(1,957.9)
Common Stock, Dividends, Per Share, Cash Paid	$ 0
Repurchase of common stock		881.6
Dividends, Common Stock, Cash		(215.2)
Stock-based compensation		70.6
Stock Issued During Period, Value, Employee Stock Purchase Plan		12.3
Excise tax on repurchase of common stock		(7.9)
Net income	$ 825.7		825.7
Other Comprehensive Income (Loss), Net of Tax	(0.2)			(0.2)
Total stockholders' deficit at Dec. 31, 2025	$ (2,154.2)	$ 9,623.5	$ (11,775.0)	$ (2.7)	$ (2,154.2)
Common Stock, Dividends, Per Share, Cash Paid	$ 2.31

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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+ Details

- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References + Details

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

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+ Details

Other Balance Sheet Items (Goodwill) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Goodwill, Gross	$ 1,537.8	$ 1,537.8
Goodwill, Impaired, Accumulated Impairment Loss	(1,485.3)	(1,485.3)
Goodwill	$ 52.5	$ 52.5

- 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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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-4

+ Details

Income Taxes (Components Of Provision For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal, Current (expense) benefit	$ (118.5)	$ (147.9)	$ (159.1)
State, Current (expense) benefit	(29.2)	(31.3)	(28.0)
Foreign, including foreign withholding tax, Current (expense) benefit	(47.8)	(43.3)	(24.4)
Current (expense) benefit	195.5	222.5	211.5
Federal, Deferred (expense) benefit	(24.0)	3.3	25.6
State, Deferred (expense) benefit	(3.3)	3.3	(11.2)
Foreign, Deferred (expense) benefit	(20.0)	(20.3)	38.2
Deferred (expense) benefit	47.3	13.7	(52.6)
Income tax expense (benefit)	$ 242.8	$ 236.2	$ 158.9

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, Reconcile to Net Income

The following table presents information about segment revenues, significant expenses and profits:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Revenues	$	1,656.6	$	1,557.4	$	1,493.1
Costs and expenses:
Compensation and benefits expenses	244.6		224.7		214.5
Stock-based compensation expenses	69.7		61.1		59.7
Equipment and software expenses	50.2		45.6		42.1
Registry fee expenses	47.8		45.3		44.1
Depreciation expenses	31.2		36.9		44.1
Other segment items	92.1		85.6		88.0
Total costs and expenses	535.6		499.2		492.5
Operating income	1,121.0		1,058.2		1,000.6
Interest expense	(77.0)		(75.3)		(75.3)
Non-operating income, net	24.5		39.0		51.2
Income tax expense	(242.8)		(236.2)		(158.9)
Net income	$	825.7	$	785.7	$	817.6

Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Minimum Payments Required Under Purchase Obligations

The following table represents the minimum payments required by Verisign under certain purchase obligations, leases, and the interest payments and principal on the Senior Notes:


	Purchase Obligations		Senior Notes		Total
	(In millions)
2026	$	42.2	$	72.6	$	114.8
2027	25.0		622.6		647.6
2028	14.0		46.5		60.5
2029	7.0		46.5		53.5
2030	5.4		46.5		51.9
Thereafter	0.3		1,299.6		1,299.9
Total	$	93.9	$	2,134.3	$	2,228.2

Document and Entity Information Document - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2025	Jan. 30, 2026	Jun. 30, 2025
Document And Entity Information [Abstract]
Document Annual Report	true
Document Transition Report	false
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	VRSN
Entity Incorporation, State or Country Code	DE
Entity Registrant Name	VERISIGN INC/CA
Entity Central Index Key	0001014473
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		91,700,000
Entity Well-known Seasoned Issuer	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Public Float			$ 16.4
Entity File Number	000-23593
City Area Code	703
Local Phone Number	948-3200
Entity Tax Identification Number	94-3221585
Entity Address, Address Line One	12061 Bluemont Way,
Entity Address, City or Town	Reston,
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	20190
Security Exchange Name	NASDAQ
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false

Commitments And Contingencies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Expiration Date of Registry Agreement	Nov. 30, 2030
Registry fee per transaction	$ 0.2575	$ 0.25	$ 0.25
Registry fee expenses	$ 47,800,000	$ 45,300,000	$ 44,100,000

Segment Reporting (Schedule of Segment Reporting Information, Reconcile to Net Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting [Abstract]
Total revenues	$ 1,656.6	$ 1,557.4	$ 1,493.1
Labor and Related Expense	244.6	224.7	214.5
Share-based Payment Arrangement, Noncash Expense	69.7	61.1	59.7
Equipment Expense	50.2	45.6	42.1
Registry fee expenses	47.8	45.3	44.1
Depreciation of property and equipment	31.2	36.9	44.1
Segment Reporting, Other Segment Item, Amount	92.1	85.6	88.0
Operating Expenses	535.6	499.2	492.5
Operating income	1,121.0	1,058.2	1,000.6
Interest expense	(77.0)	(75.3)	(75.3)
Nonoperating Gains (Losses)	(24.5)	(39.0)	(51.2)
Income tax expense	242.8	236.2	158.9
Net income	$ 825.7	$ 785.7	$ 817.6

Non-operating income, net (Tables)

12 Months Ended

Dec. 31, 2025

Non-operating (loss) income, net [Abstract]

Schedule of Non-operating Income, net

The following table presents the components of non-operating income, net:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Interest income	$	26.5	$	37.4	$	46.1
Other, net	(2.0)		1.6		5.1
Total non-operating income, net	$	24.5	$	39.0	$	51.2

Calculation Of Net Income Per Share

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Calculation Of Net Income Per Share Attributable To Verisign Stockholders

Calculation of Earnings per Share

The following table presents the computation of weighted-average shares used in the calculation of basic and diluted earnings per share:


	Year Ended December 31,
	2025	2024	2023
	(In millions)
Weighted-average shares of common stock outstanding	93.5	98.1	103.4
Weighted-average potential shares of common stock outstanding:
Unvested RSUs and ESPP	0.3	0.1	0.1
Shares used to compute diluted earnings per share	93.8	98.2	103.5

The calculation of diluted weighted average shares outstanding excludes performance-based RSUs granted by the Company for which the relevant performance criteria have not been achieved and any awards that are antidilutive. The number of potential shares excluded from the calculation was not significant in any period presented.

Commitments And Contingencies

12 Months Ended

Dec. 31, 2025

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

Commitments and Contingencies

The following table represents the minimum payments required by Verisign under certain purchase obligations, leases, and the interest payments and principal on the Senior Notes:


	Purchase Obligations		Senior Notes		Total
	(In millions)
2026	$	42.2	$	72.6	$	114.8
2027	25.0		622.6		647.6
2028	14.0		46.5		60.5
2029	7.0		46.5		53.5
2030	5.4		46.5		51.9
Thereafter	0.3		1,299.6		1,299.9
Total	$	93.9	$	2,134.3	$	2,228.2

Verisign enters into certain purchase obligations with various vendors. The Company’s significant purchase obligations include firm commitments with telecommunication carriers, other service providers and the fixed portion of registry fees related to the operation of certain top-level domains. Registry fees for top-level domains that we operate where the amounts are variable or passed-through to registrars have been excluded from the table above.

The Company has an agreement with Internet Corporation for Assigned Names and Numbers (“ICANN”) to be the sole registry operator for domain names in the .com registry through November 30, 2030. For 2023 and 2024, the Company paid ICANN a fee of $0.25 for each annual term of a domain name registered or renewed. For 2025, these fees increased to $0.2575 for each annual term of a domain name registered or renewed. We also incur registry fees for certain other registries. The Company incurred total registry fees for .com and other registries of $47.8 million in 2025, $45.3 million in 2024, and $44.1 million in 2023.

Verisign leases a small portion of its office space and a portion of its data center facilities under operating leases, the longest of which extends into 2029. Rental expenses under operating leases were not material in any period presented. Operating lease obligations for 2026 through 2029 are included in Purchase obligations in the table above.

Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues [Abstract]
Deferred Revenue, Revenue Recognized	$ 934.7
Customer Concentration Risk [Member] \| Concentration Risk Benchmark [Domain] \| Other Customer
Concentration Risk [Line Items]
Concentration Risk, Percentage	31.00%	32.00%	32.00%

- 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/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
-SubTopic 10
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-Section 50
-Paragraph 20
-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/1943274/2147478785/954-310-50-2

+ Details

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References + Details

Other Balance Sheet Items (Other Long-Term Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Operating Lease, Right-of-Use Asset	$ 9.8	$ 9.3
Prepaid registry fees, noncurent	8.4	8.2
Prepaid Expense, Noncurrent	6.5	13.5
Restricted Cash	1.6	5.4
Other Assets, Miscellaneous, Noncurrent	2.5	3.0
Total other long-term assets	$ 28.8	$ 39.4

Calculation Of Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2025

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table presents the computation of weighted-average shares used in the calculation of basic and diluted earnings per share:


	Year Ended December 31,
	2025	2024	2023
	(In millions)
Weighted-average shares of common stock outstanding	93.5	98.1	103.4
Weighted-average potential shares of common stock outstanding:
Unvested RSUs and ESPP	0.3	0.1	0.1
Shares used to compute diluted earnings per share	93.8	98.2	103.5

Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2025

Financial Instruments, Owned, at Fair Value, by Type, Alternative [Abstract]

Cash, Cash Equivalents, And Marketable Securities

The following table summarizes the Company’s cash, cash equivalents, and marketable securities and the fair value categorization of the financial instruments measured at fair value on a recurring basis:


	As of December 31,
	2025		2024
	(In millions)
Cash	$	18.5	$	21.7
Time deposits	1.9		1.8
Money market funds (Level 1)	243.3		188.6
Debt securities issued by the U.S. Treasury (Level 1)	318.4		393.2
Total	$	582.1	$	605.3

Cash and cash equivalents	$	307.9	$	206.7
Restricted cash (included in Other long-term assets)	1.6		5.4
Total Cash, cash equivalents, and restricted cash	309.5		212.1
Marketable securities	272.6		393.2
Total	$	582.1	$	605.3

Other Balance Sheet Items

12 Months Ended

Dec. 31, 2025

Balance Sheet Related Disclosures [Abstract]

Details of Certain Balance Sheet Accounts Disclosure Block

Note 3. Selected Balance Sheet Items

Other Current Assets

Other current assets consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Prepaid expenses	$	28.1	$	30.8
Prepaid registry fees	26.6		24.3
Accounts receivable, net	7.7		5.6
Taxes receivable	7.2		2.2
Other	2.4		1.0
Total other current assets	$	72.0	$	63.9

Property and Equipment, Net

The following table presents the detail of property and equipment, net:


	As of December 31,
	2025		2024
	(In millions)
Computer equipment and software	$	425.4	$	418.7
Buildings and building improvements	266.7		264.8
Land	37.9		37.9
Office equipment and furniture	11.8		11.1
Capital work in progress	12.4		16.9
Leasehold improvements	1.7		1.6
Total cost	755.9		751.0
Less: accumulated depreciation	(542.2)		(526.5)
Total property and equipment, net	$	213.7	$	224.5

Substantially all of the Company’s property and equipment were held in the U.S. for both periods presented.

Goodwill

The following table presents the detail of goodwill:


	As of December 31,
	2025		2024
	(In millions)
Goodwill, gross	$	1,537.8	$	1,537.8
Accumulated goodwill impairment	(1,485.3)		(1,485.3)
Total goodwill	$	52.5	$	52.5

There was no impairment of goodwill or other long-lived assets recognized in any of the periods presented.

Deposits to Acquire Intangible Assets

The Company’s Deposits to acquire intangible assets represents the $145.2 million paid for the future assignment to the Company of contractual rights to the .web gTLD, pending resolution of objections by other applicants, and approval from ICANN.

Other Long-Term Assets

Other long-term assets consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Operating lease right-of-use asset	$	9.8	$	9.3
Long-term prepaid registry fees	8.4		8.2
Long-term prepaid expenses	6.5		13.5
Restricted cash	1.6		5.4
Other	2.5		3.0
Total other long-term assets	$	28.8	$	39.4

The prepaid registry fees in the tables above primarily relate to the fees the Company pays to ICANN for each annual term of .com domain name registrations and renewals which are deferred and amortized over the domain name registration term. The amount of prepaid registry fees as of December 31, 2025 reflects amortization of $42.0 million during 2025 which was recorded in Cost of Revenues.

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Accounts payable and accrued expenses	$	13.8	$	10.6
Customer deposits	92.6		64.6
Accrued employee compensation	77.2		66.9
Taxes payable	64.0		65.8
Interest payable	15.1		19.5
Accrued registry fees	13.4		12.6
Customer incentives payable	13.2		8.9
Current operating lease liabilities	5.8		5.2
Other accrued liabilities	2.9		3.7
Total accounts payable and accrued liabilities	$	298.0	$	257.8

Customer deposits varies from period to period due to the timing of payments from certain large customers. Accrued employee compensation primarily consists of liabilities for employee leave, salaries, payroll taxes, employee contributions to the employee stock purchase plan, and incentive compensation.

Long-term Tax and Other Liabilities

Long-term tax and other liabilities consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Long-term tax liabilities	$	5.4	$	6.1
Long-term operating lease liabilities	4.0		4.0
Long-term tax and other liabilities	$	9.4	$	10.1

Revenue Recognition

12 Months Ended

Dec. 31, 2025

Revenues [Abstract]

Revenue from Contract with Customer [Text Block]

Revenues

The Company generates revenues in the U.S.; Europe, the Middle East and Africa (“EMEA”); Australia, China, Japan, Singapore, and other Asia Pacific countries (“APAC”); and certain other countries, including Canada and Latin American countries.

The following table presents the Company’s revenues disaggregated by geography, based on the billing addresses of our customers:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
U.S	$	1,093.1	$	1,035.5	$	994.7
EMEA	279.4		249.6		228.2
APAC	184.6		175.7		174.8
Other	99.5		96.6		95.4
Total revenues	$	1,656.6	$	1,557.4	$	1,493.1

Revenues in the table above are attributed to the country of domicile and the respective regions in which registrars are located; however, this may differ from the regions where the registrars operate or where registrants are located. Revenues for each region may be impacted by registrars reincorporating, relocating, or from acquisitions or changes in affiliations of resellers. Revenues for each region may also be impacted by registrars domiciled in one region, registering domain names in another region.

Major Customers

The Company’s largest customer accounted for approximately 31% of revenues in 2025, and approximately 32% of revenues in 2024 and 2023. The Company does not believe that the loss of this customer would have a material adverse effect on the Company’s business because, in that event, end-users of this customer would transfer to the Company’s other existing customers.

Deferred Revenues

As payment for domain name registrations and renewals are due in advance of the Company’s performance, the Company records these amounts as deferred revenues. The increase in the deferred revenues balance in 2025 was primarily driven by amounts billed in 2025 for domain name registrations and renewals to be recognized as revenues in future periods, offset by refunds for domain name renewals deleted during the 45-day grace period, and $934.7 million of revenues recognized that were included in the deferred revenues balance at December 31, 2024. The balance of deferred revenues as of December 31, 2025 represents the Company’s aggregate remaining performance obligations. Amounts included in current deferred revenues are all expected to be recognized in revenues within 12 months, except for a portion of deferred revenues that relates to domain name renewals that are deleted in the 45-day grace period following the transaction. The long-term deferred revenues amounts will be recognized in revenues over several years, and in some cases, up to ten years.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

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Financial Instruments (Cash, Cash Equivalents and Marketable Securities) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Cash	$ 18.5	$ 21.7
Time deposits	1.9	1.8
Money market funds	243.3	188.6
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value	318.4	393.2
Total	582.1	605.3
Included in Cash and cash equivalents	307.9	206.7
Included in Other assets (Restricted cash)	1.6	5.4
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	309.5	212.1	$ 245.5	$ 379.0
Included in Marketable securities	$ 272.6	$ 393.2

Income Taxes (Income From Continuing Operations Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Expense (Benefit), Continuing Operations [Abstract]
United States	$ 674.2	$ 655.4	$ 607.1
Foreign	394.3	366.5	369.4
Income from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	$ 1,068.5	$ 1,021.9	$ 976.5

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

Non-operating income, net

12 Months Ended

Dec. 31, 2025

Non-operating (loss) income, net [Abstract]

Other Nonoperating Income and Expense

Non-operating Income, Net

The following table presents the components of non-operating income, net:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Interest income	$	26.5	$	37.4	$	46.1
Other, net	(2.0)		1.6		5.1
Total non-operating income, net	$	24.5	$	39.0	$	51.2

Interest income is earned primarily from the Company’s surplus cash balances and marketable securities. The decrease in interest income in 2025 primarily reflects the lower amounts invested in debt securities in 2025 and slightly lower interest rates on the Company’s investments in debt securities compared to 2024. Other, net, reflects net gains and losses from the Company’s foreign currency exposure and related hedges.

Other Balance Sheet Items (Components of Accounts Payable And Accrued Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Accounts payable	$ 13.8	$ 10.6
Customer deposits, net	92.6	64.6
Accrued employee compensation	77.2	66.9
Taxes Payable	64.0	65.8
Interest Payable	15.1	19.5
accrued fees	13.4	12.6
Customer incentives payable	13.2	8.9
Operating Lease, Liability, Current	5.8	5.2
Other accrued liabilities	2.9	3.7
Total accounts payable and accrued liabilities	$ 298.0	$ 257.8
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total accounts payable and accrued liabilities	Total accounts payable and accrued liabilities
Operating Lease, Liability, Current	$ 5.8	$ 5.2

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2025
Audit Information [Abstract]
Auditor Name	KPMG LLP
Auditor Location	McLean, VA
Auditor Firm ID	185

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

Other Balance Sheet Items (Tables)

12 Months Ended

Dec. 31, 2025

Balance Sheet Related Disclosures [Abstract]

Other Current Assets

Other current assets consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Prepaid expenses	$	28.1	$	30.8
Prepaid registry fees	26.6		24.3
Accounts receivable, net	7.7		5.6
Taxes receivable	7.2		2.2
Other	2.4		1.0
Total other current assets	$	72.0	$	63.9

Property And Equipment, Net

The following table presents the detail of property and equipment, net:


	As of December 31,
	2025		2024
	(In millions)
Computer equipment and software	$	425.4	$	418.7
Buildings and building improvements	266.7		264.8
Land	37.9		37.9
Office equipment and furniture	11.8		11.1
Capital work in progress	12.4		16.9
Leasehold improvements	1.7		1.6
Total cost	755.9		751.0
Less: accumulated depreciation	(542.2)		(526.5)
Total property and equipment, net	$	213.7	$	224.5

Goodwill

The following table presents the detail of goodwill:


	As of December 31,
	2025		2024
	(In millions)
Goodwill, gross	$	1,537.8	$	1,537.8
Accumulated goodwill impairment	(1,485.3)		(1,485.3)
Total goodwill	$	52.5	$	52.5

Other Long-Term Assets

Other long-term assets consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Operating lease right-of-use asset	$	9.8	$	9.3
Long-term prepaid registry fees	8.4		8.2
Long-term prepaid expenses	6.5		13.5
Restricted cash	1.6		5.4
Other	2.5		3.0
Total other long-term assets	$	28.8	$	39.4

Accounts Payable And Accrued Liabilities

Accounts payable and accrued liabilities consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Accounts payable and accrued expenses	$	13.8	$	10.6
Customer deposits	92.6		64.6
Accrued employee compensation	77.2		66.9
Taxes payable	64.0		65.8
Interest payable	15.1		19.5
Accrued registry fees	13.4		12.6
Customer incentives payable	13.2		8.9
Current operating lease liabilities	5.8		5.2
Other accrued liabilities	2.9		3.7
Total accounts payable and accrued liabilities	$	298.0	$	257.8

Long-term Tax and Other Liabilities

Long-term tax and other liabilities consist of the following:


	As of December 31,
	2025		2024
	(In millions)
Long-term tax liabilities	$	5.4	$	6.1
Long-term operating lease liabilities	4.0		4.0
Long-term tax and other liabilities	$	9.4	$	10.1

- Definition

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

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Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Debt Instrument, Fair Value Disclosure	$ 1,750.0	$ 1,690.0

- Definition

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+ References

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+ Details

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Line Items]
Federal statutory rate		21.00%	21.00%
fair value of intellectual property			$ 1,800.0
Deferred tax asset related to Non-US intellectual property		$ 0.0	118.0
Deferred Tax Asset, Valuation Allowance, Change in Tax Systems			64.7
Income Taxes Paid, Net	$ 202.4	$ 230.5	$ 239.7
Liability for Uncertain Tax Positions, Noncurrent	3.9
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 23.1
Foreign [Member]
Income Taxes [Line Items]
Tax credit carryforward expiration	2028 and 2035
Federal And State [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Date	2026 through 2034
U.S. [Member]
Income Taxes [Line Items]
Federal statutory rate	21.00%

Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Line Items]
Income Taxes Paid, Net, Total	$ 202.4	$ 230.5	$ 239.7
VIRGINIA
Income Taxes [Line Items]
State Tax Payments, Amount	12.5
State and Local Tax Jurisdiction, Other
Income Taxes [Line Items]
State Tax Payments, Amount	20.3
SWITZERLAND
Income Taxes [Line Items]
Foreign Tax Payments, Amount	17.9
Foreign Tax Jurisdiction, Other
Income Taxes [Line Items]
Foreign Tax Payments, Amount	10.9
U.S. [Member]
Income Taxes [Line Items]
Federal Payments made to the IRS	$ 140.8

Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Capitalized Computer Software, Additions	$ 6.0	$ 6.7
Gain (Loss), Foreign Currency Transaction, before Tax			$ 14.7
Derivative, Gain (Loss) on Derivative, Net			$ 9.8
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Nonoperating Gains (Losses)
Derivative, Notional Amount	$ 67.7
Building Improvements [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment (years)	10 years
Minimum [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
RegistrationTerm	one
Minimum [Member] \| Buildings [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment (years)	35 years
Minimum [Member] \| Computer Equipment, Purchased Software, Office Equipment, And Furniture And Fixtures [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment (years)	3 years
Maximum [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
RegistrationTerm	ten
Maximum [Member] \| Buildings [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment (years)	47 years
Maximum [Member] \| Computer Equipment, Purchased Software, Office Equipment, And Furniture And Fixtures [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment (years)	6 years

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Our cybersecurity program is designed and implemented to assess, identify, mitigate and manage risks from cybersecurity threats that may result in adverse effects on the integrity and availability of our production and information systems and support our track record of more than 28 years of 100% DNS uptime for .com and .net. Among other items, our cybersecurity program is comprised of policies, standards, plans and frameworks for information security, business resilience, insider threat mitigation, technology asset management, cyber risk management, incident response and procurement. Material risks from cybersecurity threats include, among other things, operational disruption, including failure to meet our service level agreements, loss or destruction of data, hardware or intellectual property, and cyber extortion through ransomware. While we have not identified any material cybersecurity incidents, we continuously manage cyber-attacks, including from sophisticated nation-state actors. In addition, AI continues to enhance the capabilities of threat actors. The management of cybersecurity risks, which involves significant and sustained resource commitments and management attention, is also integrated into the Company’s enterprise risk management (“ERM”) program through formal processes that help identify and elevate the most serious risks, including those pertaining to cybersecurity, for management at the enterprise level and oversight at the Board level. For more information on the Company’s cybersecurity risks and their possible impact on our business strategy, results of operations, or financial condition see “Risk Factors – Cybersecurity and Technology Risk Factors” in Part I, Item 1A of this Form 10-K”. Our cybersecurity program leverages the NIST Cybersecurity Framework to help protect the Company’s operations, information, production systems and networks from threats through cybersecurity practices, programs and tools that establish defenses in depth. The cybersecurity program includes, among other items, vulnerability and patch management, segmentation, identity and access management, application of zero-trust principles, automated ingestion of multi-source threat intelligence, end point and network detection/response, application security, secure configurations for operating systems and databases, continuous security monitoring and 24/7 security operations, augmented by a third party managed detection and response provider. The program has dedicated business resilience, insider threat and governance, risk and compliance (“GRC”) functions that report to our Chief Information Security Officer (“CISO”). Incident management is governed by our Incident Response Plan that assigns incident command and control parameters and escalation protocols to management and the Board of Directors. Our incident response plan includes procedures for immediate escalation of cybersecurity events to our Legal department to ensure timely evaluation of disclosure obligations. Our cybersecurity program also focuses on risks from the use of third-party services. Our GRC team assesses the cybersecurity practices of current and prospective service providers for compliance with our requirements, and our procurement functions seek terms and conditions, including by example, audit rights and vulnerability or breach disclosure obligations, to enhance our defenses against supply chain risks. Our cybersecurity program incorporates several control and best practice regimes, including for example, the Center for Internet Security (“CIS”) controls tailored for our specific environment. We conduct regular internal and external assessments, audits, and tabletop exercises to assess security vulnerabilities, control compliance and incident preparedness. These assessments and exercises include breach attack simulation tools, red team exercises simulating insider and external attacks, threat and vulnerability assessments, ransomware, application, and secure image testing, crisis management exercises, including incident response and escalation procedures, and internal audit reviews. Management and the Board’s Cybersecurity Committee reviews the results of these exercises, audits and assessments. We also actively engage with third parties, such as key vendors, auditors, consultants, industry participants, and intelligence and law enforcement communities as part of our continuing efforts to evaluate and enhance the effectiveness of our cybersecurity program. We monitor emerging data protection laws and cybersecurity and privacy regulatory requirements and implement changes to our standards and processes for continued compliance. Our cybersecurity program also includes employee and contractor training, which primarily consists of monthly educational videos, annual trainings and certifications, and phishing exercises.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Our cybersecurity program is designed and implemented to assess, identify, mitigate and manage risks from cybersecurity threats that may result in adverse effects on the integrity and availability of our production and information systems and support our track record of more than 28 years of 100% DNS uptime for .com and .net. Among other items, our cybersecurity program is comprised of policies, standards, plans and frameworks for information security, business resilience, insider threat mitigation, technology asset management, cyber risk management, incident response and procurement. Material risks from cybersecurity threats include, among other things, operational disruption, including failure to meet our service level agreements, loss or destruction of data, hardware or intellectual property, and cyber extortion through ransomware. While we have not identified any material cybersecurity incidents, we continuously manage cyber-attacks, including from sophisticated nation-state actors. In addition, AI continues to enhance the capabilities of threat actors. The management of cybersecurity risks, which involves significant and sustained resource commitments and management attention, is also integrated into the Company’s enterprise risk management (“ERM”) program through formal processes that help identify and elevate the most serious risks, including those pertaining to cybersecurity, for management at the enterprise level and oversight at the Board level.
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]	Our Board has delegated primary oversight of the Company’s cybersecurity risks and our cybersecurity program to the Cybersecurity Committee. The Audit Committee also reviews material cybersecurity risks as part of the Company’s ERM program. The Cybersecurity Committee reviews our incident response plan, including escalation protocols, business continuity program plans, program budgets and resources, and our cybersecurity insurance program. It also reviews and discusses the activities of the Council at each of its regularly scheduled meetings. The Cybersecurity Committee operates pursuant to a written charter and calendar, each of which are reviewed on an annual basis. The Cybersecurity Committee and the full Board receive quarterly status reports on the cybersecurity program from the CSO, addressing progress and updates on multiple cybersecurity functions and initiatives including, for example, compliance, assessments, security operations and incident response, business resilience, DDoS attacks, data privacy, technology and asset management, controls, and vulnerability management. In addition, the Cybersecurity Committee conducts oversight on behalf of the Board of our use of AI and AI risks, including as it pertains to cybersecurity and data governance.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Our Board has delegated primary oversight of the Company’s cybersecurity risks and our cybersecurity program to the Cybersecurity Committee.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Cybersecurity Committee and the full Board receive quarterly status reports on the cybersecurity program from the CSO, addressing progress and updates on multiple cybersecurity functions and initiatives including, for example, compliance, assessments, security operations and incident response, business resilience, DDoS attacks, data privacy, technology and asset management, controls, and vulnerability management.
Cybersecurity Risk Role of Management [Text Block]	Our cybersecurity program incorporates several control and best practice regimes, including for example, the Center for Internet Security (“CIS”) controls tailored for our specific environment. We conduct regular internal and external assessments, audits, and tabletop exercises to assess security vulnerabilities, control compliance and incident preparedness. These assessments and exercises include breach attack simulation tools, red team exercises simulating insider and external attacks, threat and vulnerability assessments, ransomware, application, and secure image testing, crisis management exercises, including incident response and escalation procedures, and internal audit reviews. Management and the Board’s Cybersecurity Committee reviews the results of these exercises, audits and assessments. We also actively engage with third parties, such as key vendors, auditors, consultants, industry participants, and intelligence and law enforcement communities as part of our continuing efforts to evaluate and enhance the effectiveness of our cybersecurity program. We monitor emerging data protection laws and cybersecurity and privacy regulatory requirements and implement changes to our standards and processes for continued compliance. Our cybersecurity program also includes employee and contractor training, which primarily consists of monthly educational videos, annual trainings and certifications, and phishing exercises. Cybersecurity Governance Our cybersecurity strategy and program are led by our Executive Vice President of Technology and Chief Security Officer (“CSO”), who reports to the CEO. Our CSO has over 30 years of experience in technology and cybersecurity leadership positions and has authored several security-related books and numerous patents, IP standards, and security research publications. He has served in various capacities on various technology working groups and standards setting organizations including the Internet Architecture Board and the Internet Engineering Task Force. Our CSO manages a converged security, engineering and operations organization that helps to ensure that cyber and other security priorities are comprehensively considered throughout the Company. Our CISO, Chief Information Officer (“CIO”), Chief Technology Officer (“CTO”) and the head of architecture, engineering, operations, and corporate security functions report to our CSO. These and other experienced employees lead the teams responsible for implementing various parts of our cybersecurity program. In addition, a management-level Safety and Security Council (“Council”) chaired by our CEO and comprised of our CSO, CFO, General Counsel, and other senior officers, provides cross-functional coordination for the management of the Company’s security functions. The Council receives information, typically monthly, on the status of the cybersecurity program, initiatives, incidents, cybersecurity risks, assessments, and threats, among other items. The Chair of the Board’s Cybersecurity Committee is the Board’s liaison to the Council and attends the regular meetings of the Council. Our Board has delegated primary oversight of the Company’s cybersecurity risks and our cybersecurity program to the Cybersecurity Committee. The Audit Committee also reviews material cybersecurity risks as part of the Company’s ERM program. The Cybersecurity Committee reviews our incident response plan, including escalation protocols, business continuity program plans, program budgets and resources, and our cybersecurity insurance program. It also reviews and discusses the activities of the Council at each of its regularly scheduled meetings. The Cybersecurity Committee operates pursuant to a written charter and calendar, each of which are reviewed on an annual basis. The Cybersecurity Committee and the full Board receive quarterly status reports on the cybersecurity program from the CSO, addressing progress and updates on multiple cybersecurity functions and initiatives including, for example, compliance, assessments, security operations and incident response, business resilience, DDoS attacks, data privacy, technology and asset management, controls, and vulnerability management. In addition, the Cybersecurity Committee conducts oversight on behalf of the Board of our use of AI and AI risks, including as it pertains to cybersecurity and data governance. At the management level, the Company’s use of AI, including in the cybersecurity area, is managed pursuant to a corporate AI policy by a cross-functional AI Steering Committee comprised of senior Verisign technology, cybersecurity and legal resources.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Our cybersecurity strategy and program are led by our Executive Vice President of Technology and Chief Security Officer (“CSO”), who reports to the CEO. Our CSO has over 30 years of experience in technology and cybersecurity leadership positions and has authored several security-related books and numerous patents, IP standards, and security research publications. He has served in various capacities on various technology working groups and standards setting organizations including the Internet Architecture Board and the Internet Engineering Task Force. Our CSO manages a converged security, engineering and operations organization that helps to ensure that cyber and other security priorities are comprehensively considered throughout the Company. Our CISO, Chief Information Officer (“CIO”), Chief Technology Officer (“CTO”) and the head of architecture, engineering, operations, and corporate security functions report to our CSO. These and other experienced employees lead the teams responsible for implementing various parts of our cybersecurity program. In addition, a management-level Safety and Security Council (“Council”) chaired by our CEO and comprised of our CSO, CFO, General Counsel, and other senior officers, provides cross-functional coordination for the management of the Company’s security functions. The Council receives information, typically monthly, on the status of the cybersecurity program, initiatives, incidents, cybersecurity risks, assessments, and threats, among other items. The Chair of the Board’s Cybersecurity Committee is the Board’s liaison to the Council and attends the regular meetings of the Council. Our Board has delegated primary oversight of the Company’s cybersecurity risks and our cybersecurity program to the Cybersecurity Committee. The Audit Committee also reviews material cybersecurity risks as part of the Company’s ERM program. The Cybersecurity Committee reviews our incident response plan, including escalation protocols, business continuity program plans, program budgets and resources, and our cybersecurity insurance program. It also reviews and discusses the activities of the Council at each of its regularly scheduled meetings. The Cybersecurity Committee operates pursuant to a written charter and calendar, each of which are reviewed on an annual basis. The Cybersecurity Committee and the full Board receive quarterly status reports on the cybersecurity program from the CSO, addressing progress and updates on multiple cybersecurity functions and initiatives including, for example, compliance, assessments, security operations and incident response, business resilience, DDoS attacks, data privacy, technology and asset management, controls, and vulnerability management. In addition, the Cybersecurity Committee conducts oversight on behalf of the Board of our use of AI and AI risks, including as it pertains to cybersecurity and data governance. At the management level, the Company’s use of AI, including in the cybersecurity area, is managed pursuant to a corporate AI policy by a cross-functional AI Steering Committee comprised of senior Verisign technology, cybersecurity and legal resources.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our CSO has over 30 years of experience in technology and cybersecurity leadership positions and has authored several security-related books and numerous patents, IP standards, and security research publications. He has served in various capacities on various technology working groups and standards setting organizations including the Internet Architecture Board and the Internet Engineering Task Force
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The program has dedicated business resilience, insider threat and governance, risk and compliance (“GRC”) functions that report to our Chief Information Security Officer (“CISO”). Incident management is governed by our Incident Response Plan that assigns incident command and control parameters and escalation protocols to management and the Board of Directors. Our incident response plan includes procedures for immediate escalation of cybersecurity events to our Legal department to ensure timely evaluation of disclosure obligations.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Debt And Interest Expense (Senior Notes) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Cash paid for interest, net of capitalized interest	$ 78.7	$ 72.8	$ 72.8
Due 2025
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Mar. 27, 2015
Debt Instrument, Face Amount	$ 0.0	500.0
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Debt Instrument, Repaid, Principal	$ 500.0
Due 2031
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Jun. 08, 2021
Debt Instrument, Face Amount	$ 750.0	750.0
Debt Instrument, Interest Rate, Stated Percentage	2.70%
Debt instrument, issue percentage	99.712%
Due 2032
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Mar. 11, 2025
Debt Instrument, Face Amount	$ 500.0	0.0
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Debt instrument, issue percentage	99.581%
Debt Issuance Costs, Gross	$ 6.7
Due 2027
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Jul. 05, 2017
Debt Instrument, Face Amount	$ 550.0	$ 550.0
Debt Instrument, Interest Rate, Stated Percentage	4.75%

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Taxes [Abstract]

Income From Continuing Operations Before Income Taxes

Income before income taxes is categorized geographically as follows:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
United States	$	674.2	$	655.4	$	607.1
Foreign	394.3		366.5		369.4
Total income before income taxes	$	1,068.5	$	1,021.9	$	976.5

Components Of Provision For Income Taxes

The provision for income taxes consisted of the following:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Current expense:
Federal	$	118.5	$	147.9	$	159.1
State	29.2		31.3		28.0
Foreign, including withholding tax	47.8		43.3		24.4
	195.5		222.5		211.5
Deferred expense (benefit):
Federal	24.0		(3.3)		(25.6)
State	3.3		(3.3)		11.2
Foreign	20.0		20.3		(38.2)
	47.3		13.7		(52.6)
Total income tax expense	$	242.8	$	236.2	$	158.9

Reconciliation Of Income Tax At Effective Income Tax Rate

The difference between income tax expense and effective tax rate and the amounts resulting from applying the federal statutory rate of 21% to Income before income taxes in 2025 is attributable to the following:


	Year Ended December 31, 2025
	Balance		Percent
	(Balance in millions)
U.S. federal statutory tax rate	$	224.4	21.0	%
Domestic federal:
Effect of cross-border tax laws
Global intangible low-taxed income	5.8		0.5	%
Other	0.1		—	%
Other adjustments	1.7		0.2	%
Domestic state and local income taxes, net of federal income tax effect	25.7		2.4	%
Foreign tax effects:
Switzerland
Effect of rates different than statutory	(49.0)		(4.6)	%
Canton of Fribourg, Switzerland	15.9		1.5	%
Minimum taxes	13.5		1.3	%
Other	4.8		0.4	%
Other foreign jurisdictions	(0.1)		—	%
Total	$	242.8	22.7	%

The majority of domestic state and local income taxes, net of federal income tax effect, in the table above relates to state taxes in Virginia and New York.

The difference between income tax expense and the amount resulting from applying the federal statutory rate of 21% to Income before income taxes in 2024 and 2023 is attributable to the following:


	Year Ended December 31,
	2024		2023

Income tax expense at federal statutory rate	$	214.6	$	205.1
State taxes, net of federal benefit	20.4		28.5
Change in valuation allowance	(6.5)		66.1
Remeasurement of unrecognized tax benefits	2.4		(8.3)
Effect of non-U.S. operations	2.3		(15.5)
Non-U.S. intellectual property	—		(118.0)
Other	3.0		1.0
Total income tax expense	$	236.2	$	158.9

Summary Of Deferred Tax Assets And Liabilities

The tax effects of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are as follows:


	As of December 31,
	2025		2024
	(In millions)
Deferred tax assets:
Intellectual property	$	199.7	$	227.4
Deferred revenue, accruals and reserves	78.5		72.4
Research and development costs	—		32.5
Other	11.2		11.7
Total deferred tax assets	289.4		344.0
Valuation allowance	(55.2)		(61.8)
Net deferred tax assets	234.2		282.2
Deferred tax liabilities	(1.0)		(0.9)
Total net deferred tax assets	$	233.2	$	281.3

Tax Payments Table

The following table presents income taxes paid to United States, state, and foreign jurisdictions, net of refunds received in 2025:


	Year Ended December 31,
	2025
	(in millions)
United States
Federal	$	140.8
State
Virginia	12.5
Other	20.3
Foreign
Switzerland - federal	17.9
Other	10.9
Total	$	202.4

Schedule of Unrecognized Tax Benefits Roll Forward

A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows:


	As of December 31,
	2025		2024
	(In millions)
Beginning balance	$	6.5	$	9.6
Increases in tax positions for prior years	0.1		0.3
Decreases in tax positions for prior years	—		(2.8)
Increases in tax positions for current year	0.4		0.4
Lapse in statute of limitations	(1.2)		(1.0)
Ending balance	$	5.8	$	6.5

Commitments And Contingencies (Minimum Payments Required Under Purchase Obligations) (Details) $ in Millions	Dec. 31, 2025 USD ($)
Purchase Obligations [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2026	$ 42.2
2027	25.0
2028	14.0
2029	7.0
2030	5.4
Thereafter	0.3
Total Commitment	93.9
Senior Notes [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2026	72.6
2027	622.6
2028	46.5
2029	46.5
2030	46.5
Thereafter	1,299.6
Total Commitment	2,134.3
Commitments & Contingencies Total
Purchase Obligations And Contractual Agreements [Line Items]
2026	114.8
2027	647.6
2028	60.5
2029	53.5
2030	51.9
Thereafter	1,299.9
Total Commitment	$ 2,228.2

Other Balance Sheet Items (Other Current Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Prepaid expenses	$ 28.1	$ 30.8
Prepaid registry fees, current	26.6	24.3
Accounts Receivable, after Allowance for Credit Loss, Current	7.7	5.6
Income Taxes Receivable	7.2	2.2
Other Assets, Miscellaneous, Current	2.4	1.0
Other current assets	$ 72.0	$ 63.9

Stockholders' Deficit (Dividends Declared) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.77	$ 0.77	$ 0.77	$ 2.31	$ 0	$ 0
Payments of Dividends	$ 71.1	$ 72.0	$ 72.1	$ 215.2	$ 0.0	$ 0.0

Employee Benefits And Stock-Based Compensation (Nature of Total Stock-Based Compensation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 70.6	$ 62.1	$ 60.8
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	53.1	49.9	47.1
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	13.7	8.2	9.3
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 3.8	$ 4.0	$ 4.4

- 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

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+ Details

Segment Reporting

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Segment Reporting Disclosure

Segment Information

The Company has one reportable segment that includes all the operations of the business. The segment’s chief operating decision maker is the Executive Chairman, President, and Chief Executive Officer. The chief operating decision maker assesses performance and decides how to allocate resources based on revenues, operating income and net income as reported on the Consolidated Statement of Comprehensive Income.

Revenues, operating income and net income are used to evaluate budget versus actual results and the overall return generated by the segment assets. The analysis of these financial results, among other metrics, is used to assess performance and drives employee incentive compensation, as well as executive compensation.

The following table presents information about segment revenues, significant expenses and profits:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Revenues	$	1,656.6	$	1,557.4	$	1,493.1
Costs and expenses:
Compensation and benefits expenses	244.6		224.7		214.5
Stock-based compensation expenses	69.7		61.1		59.7
Equipment and software expenses	50.2		45.6		42.1
Registry fee expenses	47.8		45.3		44.1
Depreciation expenses	31.2		36.9		44.1
Other segment items	92.1		85.6		88.0
Total costs and expenses	535.6		499.2		492.5
Operating income	1,121.0		1,058.2		1,000.6
Interest expense	(77.0)		(75.3)		(75.3)
Non-operating income, net	24.5		39.0		51.2
Income tax expense	(242.8)		(236.2)		(158.9)
Net income	$	825.7	$	785.7	$	817.6

Other segment items that are a part of the Company’s segment net income include professional services expenses, legal expenses, telecommunication expenses, marketing expenses, occupancy expenses, and travel expenses.

- 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.

+ References

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+ Details

Stockholders' Deficit (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	7 Months Ended
	Feb. 04, 2026	Jul. 24, 2025	Dec. 31, 2025
Treasury Stock Repurchase Programs [Line Items]
Additional share repurchase amount authorized		$ 913.1
Remaining common stock available for repurchase		586.9
Share Repurchase Program, Authorized, Amount		$ 1,500.0
Treasury Stock Shares Repurchased			263.7
Payments for Repurchase of Common Stock			$ 15,760.0
Subsequent Event
Treasury Stock Repurchase Programs [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.81
Share Buyback Program [Member]
Treasury Stock Repurchase Programs [Line Items]
Remaining common stock available for repurchase			$ 1,080.0

Income Taxes

12 Months Ended

Dec. 31, 2025

Income Taxes [Abstract]

Income Tax Disclosure [Text Block]

Income Taxes

Income before income taxes is categorized geographically as follows:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
United States	$	674.2	$	655.4	$	607.1
Foreign	394.3		366.5		369.4
Total income before income taxes	$	1,068.5	$	1,021.9	$	976.5

The provision for income taxes consisted of the following:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Current expense:
Federal	$	118.5	$	147.9	$	159.1
State	29.2		31.3		28.0
Foreign, including withholding tax	47.8		43.3		24.4
	195.5		222.5		211.5
Deferred expense (benefit):
Federal	24.0		(3.3)		(25.6)
State	3.3		(3.3)		11.2
Foreign	20.0		20.3		(38.2)
	47.3		13.7		(52.6)
Total income tax expense	$	242.8	$	236.2	$	158.9

The One Big Beautiful Bill Act (“the Act”), signed into law on July 4, 2025, restored the immediate deduction of research and development expenditures for U.S. federal income tax purposes. This change resulted in a decrease to the Company’s current federal expense, and an increase to deferred federal expense in 2025. The increased foreign current expense in 2024 was primarily driven by the Organization for Economic Cooperation and Development (“OECD”) Pillar 2 minimum tax adopted by Switzerland, partially offset by related foreign tax credits in the U.S.


	Year Ended December 31, 2025
	Balance		Percent
	(Balance in millions)
U.S. federal statutory tax rate	$	224.4	21.0	%
Domestic federal:
Effect of cross-border tax laws
Global intangible low-taxed income	5.8		0.5	%
Other	0.1		—	%
Other adjustments	1.7		0.2	%
Domestic state and local income taxes, net of federal income tax effect	25.7		2.4	%
Foreign tax effects:
Switzerland
Effect of rates different than statutory	(49.0)		(4.6)	%
Canton of Fribourg, Switzerland	15.9		1.5	%
Minimum taxes	13.5		1.3	%
Other	4.8		0.4	%
Other foreign jurisdictions	(0.1)		—	%
Total	$	242.8	22.7	%

The majority of domestic state and local income taxes, net of federal income tax effect, in the table above relates to state taxes in Virginia and New York.

The difference between income tax expense and the amount resulting from applying the federal statutory rate of 21% to Income before income taxes in 2024 and 2023 is attributable to the following:


	Year Ended December 31,
	2024		2023

Income tax expense at federal statutory rate	$	214.6	$	205.1
State taxes, net of federal benefit	20.4		28.5
Change in valuation allowance	(6.5)		66.1
Remeasurement of unrecognized tax benefits	2.4		(8.3)
Effect of non-U.S. operations	2.3		(15.5)
Non-U.S. intellectual property	—		(118.0)
Other	3.0		1.0
Total income tax expense	$	236.2	$	158.9

During the fourth quarter of 2023, due to a change in local tax systems, the Company recognized amortizable tax basis related to a portion of its non-U.S. intellectual property based on a fair value of approximately $1.80 billion. This intellectual property had no book value, resulting in the recognition of a $118.0 million deferred tax asset and a corresponding income tax benefit in 2023.

Due to the change in the tax systems mentioned above, the Company determined that it is more likely than not that a portion of the deferred tax asset related to certain non-U.S. intellectual property previously transferred as part of a legal entity reorganization, will not be realized, and as a result, recognized a valuation allowance of $64.7 million in 2023.

The tax effects of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are as follows:


	As of December 31,
	2025		2024
	(In millions)
Deferred tax assets:
Intellectual property	$	199.7	$	227.4
Deferred revenue, accruals and reserves	78.5		72.4
Research and development costs	—		32.5
Other	11.2		11.7
Total deferred tax assets	289.4		344.0
Valuation allowance	(55.2)		(61.8)
Net deferred tax assets	234.2		282.2
Deferred tax liabilities	(1.0)		(0.9)
Total net deferred tax assets	$	233.2	$	281.3

The decrease in the deferred tax assets related to research and development costs in 2025 was due to the passage of the Act which changed the timing of deductibility of these expenses as discussed above.

With the exception of a portion of deferred tax assets related to intellectual property and certain state and foreign net operating loss and foreign tax credit carryforwards, management believes it is more likely than not that the tax effects of the deferred tax liabilities together with future taxable income, will be sufficient to fully recover the remaining deferred tax assets.

As of December 31, 2025, the Company’s deferred tax assets included $23.1 million of state net operating loss carryforwards, before applying tax rates for the respective jurisdictions. The tax credit carryforwards as of December 31, 2025 consisted primarily of foreign tax credit carryforwards. The state net operating loss carryforwards expire in various years from 2026 through 2034. The foreign tax credits will expire between 2028 and 2035.

The following table presents income taxes paid to United States, state, and foreign jurisdictions, net of refunds received in 2025:


	Year Ended December 31,
	2025
	(in millions)
United States
Federal	$	140.8
State
Virginia	12.5
Other	20.3
Foreign
Switzerland - federal	17.9
Other	10.9
Total	$	202.4

The Company paid $230.5 million and $239.7 million for income taxes, net of refunds received, in 2024 and 2023, respectively.

A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows:


	As of December 31,
	2025		2024
	(In millions)
Beginning balance	$	6.5	$	9.6
Increases in tax positions for prior years	0.1		0.3
Decreases in tax positions for prior years	—		(2.8)
Increases in tax positions for current year	0.4		0.4
Lapse in statute of limitations	(1.2)		(1.0)
Ending balance	$	5.8	$	6.5

As of December 31, 2025, approximately $3.9 million of unrecognized tax benefits, including penalties and interest, could affect the Company’s tax provision and effective tax rate.

In accordance with its accounting policy, the Company recognizes accrued interest and penalties related to unrecognized tax benefits as a component of tax expense. These accruals were not material in any period presented.

The Company’s major taxing jurisdictions are the U.S., the Commonwealth of Virginia, and Switzerland. The Company’s U.S. federal income tax returns are not currently under examination by the IRS and only the Company’s tax returns for 2021 and years thereafter are subject to examination. The Company’s other material tax returns are not currently under examination by their respective taxing jurisdictions. Because the Company has previously used net operating loss carryforwards and other tax attributes to offset its taxable income in income tax returns for the U.S. and Virginia, such attributes can be adjusted by these taxing authorities until the statute of limitations closes on the year in which such attributes were utilized. The open years for examination in Switzerland are the 2021 tax year and forward.

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

+ Details

Debt And Interest Expense (Senior Notes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Dec. 06, 2028
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ (11.8)	$ (7.7)
Senior Notes	1,788.2	1,792.3
Senior Notes, Current	0.0	(299.8)
Senior Notes, Noncurrent	$ 1,788.2	1,492.5
Due 2025
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Mar. 27, 2015
Debt Instrument, Maturity Date	Apr. 01, 2025
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Debt Instrument, Face Amount	$ 0.0	500.0
Due 2027
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Jul. 05, 2017
Debt Instrument, Maturity Date	Jul. 15, 2027
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Debt Instrument, Face Amount	$ 550.0	550.0
Due 2031
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Jun. 08, 2021
Debt Instrument, Maturity Date	Jun. 15, 2031
Debt Instrument, Interest Rate, Stated Percentage	2.70%
Debt Instrument, Face Amount	$ 750.0	750.0
Due 2032
Debt Instrument [Line Items]
Debt Instrument, Offering Date	Mar. 11, 2025
Debt Instrument, Maturity Date	Jun. 01, 2032
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Debt Instrument, Face Amount	$ 500.0	$ 0.0

Employee Benefits And Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2025

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

Classification Of Stock-Based Compensation

The following table presents the classification of stock-based compensation:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Cost of revenues	$	8.7	$	8.0	$	7.1
Research and development	11.3		10.6		10.0
Selling, general and administrative	49.7		42.5		42.6
Stock-based compensation expense	69.7		61.1		59.7
Capitalization (included in Property and equipment, net)	0.9		1.0		1.1
Total stock-based compensation	$	70.6	$	62.1	$	60.8

Nature Of Total Stock-Based Compensation

The following table presents the nature of the Company’s total stock-based compensation:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
RSUs	$	53.1	$	49.9	$	47.1
PSUs	13.7		8.2		9.3
ESPP	3.8		4.0		4.4
Total stock-based compensation	$	70.6	$	62.1	$	60.8

Summary Of Unvested RSUs Activity

The following table summarizes unvested RSUs activity for the year ended December 31, 2025:


	Shares	Weighted-Average Grant-Date Fair Value
	(Shares in millions)
Unvested at beginning of period	0.7	$	203.36
Granted	0.4	$	226.12
Vested and settled	(0.3)	$	206.43
Forfeited	(0.1)	$	210.48
Unvested at end of period	0.7	$	213.00

Other Balance Sheet Items (Property And Equipment, Net) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Computer equipment and software	$ 425.4	$ 418.7
Buildings and building improvements	266.7	264.8
Land	37.9	37.9
Office equipment and furniture	11.8	11.1
Capital work in progress	12.4	16.9
Leasehold improvements	1.7	1.6
Total cost	755.9	751.0
Less: accumulated depreciation and amortization	(542.2)	(526.5)
Total property and equipment, net	$ 213.7	$ 224.5

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income	$ 825.7	$ 785.7	$ 817.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property and equipment	31.2	36.9	44.1
Stock-based compensation	69.7	61.1	59.7
Investment Income, Amortization of Discount	11.6	21.1	27.8
Other Noncash Income (Expense)	6.5	3.6	3.3
Changes in operating assets and liabilities
Prepaid expenses and other assets	(1.4)	(12.4)	(1.5)
Accounts payable and accrued liabilities	42.7	(28.9)	(2.2)
Deferred revenues	80.2	58.1	27.0
Net deferred income taxes	48.1	19.6	(66.4)
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation	1,091.1	902.6	853.8
Cash flows from investing activities:
Proceeds from maturities and sales of marketable securities	704.3	1,195.1	1,278.9
Purchases of marketable securities	(572.2)	(880.7)	(1,330.5)
Purchases of property and equipment	(22.8)	(28.1)	(45.8)
Payment for (Proceeds from) Other Investing Activity	0.2	0.0	0.0
Net cash provided by (used in) investing activities	109.1	286.3	(97.4)
Cash flows from financing activities:
Repurchases of common stock	(881.6)	(1,225.6)	(901.4)
Repayments of Debt	500.0	0.0	0.0
Proceeds from Debt, Net of Issuance Costs	(493.3)	0.0	0.0
Payments of Dividends	(215.2)	0.0	0.0
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised	12.3	12.3	12.3
Payment of excise tax on repurchases of common stock	11.6	8.2	0.0
Proceeds from (Payment for) Other Financing Activity	0.0	0.0	(0.7)
Net cash used in financing activities	(1,102.8)	(1,221.5)	(889.8)
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation	0.0	(0.8)	(0.1)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	97.4	(33.4)	(133.5)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	309.5	212.1	$ 245.5
Cash and cash equivalents at end of period	$ 307.9	$ 206.7

Financial Instruments

12 Months Ended

Dec. 31, 2025

Financial Instruments, Owned, at Fair Value, by Type, Alternative [Abstract]

Financial Instruments Disclosure

Financial Instruments

Cash, Cash Equivalents, and Marketable Securities


	As of December 31,
	2025		2024
	(In millions)
Cash	$	18.5	$	21.7
Time deposits	1.9		1.8
Money market funds (Level 1)	243.3		188.6
Debt securities issued by the U.S. Treasury (Level 1)	318.4		393.2
Total	$	582.1	$	605.3

Cash and cash equivalents	$	307.9	$	206.7
Restricted cash (included in Other long-term assets)	1.6		5.4
Total Cash, cash equivalents, and restricted cash	309.5		212.1
Marketable securities	272.6		393.2
Total	$	582.1	$	605.3

The gross and net unrealized gains and losses included in the fair value of the debt securities were not significant for the periods presented. All of the debt securities held as of December 31, 2025 are scheduled to mature in less than one year.

Fair Value Measurements

The fair value of the Company’s investments in money market funds approximates their face value. Such instruments are included in Cash and cash equivalents. The fair value of the debt securities consisting of U.S. Treasury bills is based on their quoted market prices. Debt securities purchased with original maturities in excess of three months are included in Marketable securities. The fair value of the Company’s foreign currency forward contracts is based on foreign currency rates quoted by banks or foreign currency dealers and other public data sources. The fair value of all of these financial instruments are classified as Level 1 in the fair value hierarchy.

As of December 31, 2025, the Company’s other financial instruments include cash, accounts receivable, restricted cash, and accounts payable whose carrying values approximated their face values. The aggregate fair value of the Company’s senior notes is $1.75 billion and $1.69 billion as of December 31, 2025 and 2024, respectively. The fair values of these debt instruments are based on available market information from public data sources and are classified as Level 2.

Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 307.9	$ 206.7
Marketable securities	272.6	393.2
Other	72.0	63.9
Total current assets	652.5	663.8
Property and equipment, net	213.7	224.5
Goodwill	52.5	52.5
Deferred Income Tax Assets, Net	233.2	281.3
Deposits Assets, Noncurrent	145.2	145.0
Other long-term assets	28.8	39.4
Total long-term assets	673.4	742.7
Total assets	1,325.9	1,406.5
Current liabilities:
Accounts payable and accrued liabilities	298.0	257.8
Deferred revenues	1,035.1	973.5
Senior Notes, Current	0.0	299.8
Total current liabilities	1,333.1	1,531.1
Long-term deferred revenues	349.4	330.7
Senior Notes, Noncurrent	1,788.2	1,492.5
Other long-term liabilities	9.4	10.1
Total long-term liabilities	2,147.0	1,833.3
Total liabilities	3,480.1	3,364.4
Commitments and contingencies
Stockholders' deficit:
Preferred stock	0.0	0.0
Common Stocks, Including Additional Paid in Capital	9,623.5	10,645.3
Accumulated deficit	(11,775.0)	(12,600.7)
Accumulated other comprehensive loss	(2.7)	(2.5)
Total stockholders' deficit	(2,154.2)	(1,957.9)
Total liabilities and stockholders' deficit	$ 1,325.9	$ 1,406.5
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized shares	5.0	5.0
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized shares	1,000.0	1,000.0
Common Stock, Shares, Issued	355.6	355.2
Common stock, outstanding shares	91.9	95.0

Non-operating income, net (Schedule of Non-operating income, net) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Non-operating (loss) income, net [Abstract]
Investment Income, Interest and Dividend	$ 26.5	$ 37.4	$ 46.1
Other Nonoperating Income (Expense)	(2.0)	1.6	5.1
Nonoperating Income (Expense)	$ 24.5	$ 39.0	$ 51.2

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Debt And Interest Expense (Credit Facilities) (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Borrowing capacity of senior unsecured revolving credit facility	$ 200.0
Credit facility, maturity date	Dec. 06, 2028
Aggregate increase of commitment amount available	$ 150.0
Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio	4.0

- 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

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
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

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-Topic 835
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+ Details

Income Taxes (Summary Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Tax Asset Intellectual property	$ 199.7	$ 227.4
Deferred revenue, accruals and reserves	78.5	72.4
Deferred Tax Asset Research and Development Costs	0.0	32.5
Other	11.2	11.7
Total deferred tax assets	289.4	344.0
Valuation allowance	(55.2)	(61.8)
Net deferred tax assets	234.2	282.2
Deferred Tax Liabilities, Gross	(1.0)	(0.9)
Total deferred tax assets	$ 233.2	$ 281.3

Segment Reporting (Policies)	12 Months Ended
Segment Reporting (Policies)	Dec. 31, 2025
Segment Reporting [Abstract]
Segment Reporting, Policy	The segment’s chief operating decision maker is the Executive Chairman, President, and Chief Executive Officer. The chief operating decision maker assesses performance and decides how to allocate resources based on revenues, operating income and net income as reported on the Consolidated Statement of Comprehensive Income. Revenues, operating income and net income are used to evaluate budget versus actual results and the overall return generated by the segment assets. The analysis of these financial results, among other metrics, is used to assess performance and drives employee incentive compensation, as well as executive compensation.

- Definition

Disclosure of accounting policy for segment reporting.

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+ Details

Debt And Interest Expense (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The following table summarizes information related to our senior notes:


	Issuance Date	Maturity Date	Interest Rate		Principal
					As of December 31,
					2025		2024
					(in millions except interest rates)
Senior notes due 2025	March 27, 2015	April 1, 2025	5.25	%	$	—	$	500.0
Senior notes due 2027	July 5, 2017	July 15, 2027	4.75	%	550.0		550.0
Senior notes due 2031	June 8, 2021	June 15, 2031	2.70	%	750.0		750.0
Senior notes due 2032	March 11, 2025	June 1, 2032	5.25	%	500.0		—
Less: unamortized issuance costs					(11.8)		(7.7)
Total senior notes					1,788.2		1,792.3
Less: current portion of senior notes due 2025					—		(299.8)
Total long-term senior notes					$	1,788.2	$	1,492.5

Employee Benefits And Stock-Based Compensation (Classification of Stock-based Compensation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Payment Arrangement, Noncash Expense	$ 69.7	$ 61.1	$ 59.7
Share-based Payment Arrangement, Amount Capitalized	0.9	1.0	1.1
Share-based Payment Arrangement, Expense	70.6	62.1	60.8
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Payment Arrangement, Noncash Expense	8.7	8.0	7.1
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Payment Arrangement, Noncash Expense	11.3	10.6	10.0
Selling, General and Administrative Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Payment Arrangement, Noncash Expense	$ 49.7	$ 42.5	$ 42.6

Income Taxes (Effective tax rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		$ 214.6	$ 205.1
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		3.0	1.0
Effective Income Tax Rate Reconciliation, State and Local Income Taxes net of federal income tax effect, Amount		20.4	28.5
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount		2.3	(15.5)
Change in valuation allowance		(6.5)	66.1
Effective tax rate reconciliation, accrual for uncertain tax positions		2.4	(8.3)
Deferred tax asset related to Non-US intellectual property		0.0	(118.0)
Income tax expense (benefit)	$ 242.8	$ 236.2	$ 158.9
Federal statutory rate		21.00%	21.00%
Effective Income Tax Rate Reconciliation, Percent	22.70%
SWITZERLAND
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 4.8
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	(49.0)
Effective Income Tax Rate Reconciliation, Fribourg Switzerland Foreign tax effects, Amount	15.9
Effective Income Tax Rate Reconciliation, Minimum taxes Foreign tax effects, Amount	$ 13.5
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.40%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(4.60%)
Effective Income Tax Rate Reconciliation, Fribourg Switzerland Foreign tax effects, Percentage	1.50%
Effective Income Tax Rate Reconciliation, Minimum taxes Foreign tax effects, Percent	1.30%
Foreign Tax Jurisdiction, Other
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	$ (0.1)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	0.00%
U.S. [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 224.4
Effective Income Tax Rate Reconciliation, GILTI, Amount	5.8
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount	0.1
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 1.7
Federal statutory rate	21.00%
Effective Income Tax Rate Reconciliation, GILTI, Percent	0.50%
Effective Income Tax Rate Reconciliation, Cross-Border, Other, Percent	0.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	0.20%
State [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes net of federal income tax effect, Amount	$ 25.7
Effective Income Tax Rate Reconciliation, State and Local Income Taxes net of federal income tax effect, Percent	2.40%

Income Taxes (Reconciliation Of Gross Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Increases in tax positions for prior years	$ 0.1	$ 0.3
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	0.0	(2.8)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	0.4	0.4
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(1.2)	(1.0)
Unrecognized Tax Benefits as of December 31	$ 5.8	$ 6.5	$ 9.6

Other Balance Sheet Items (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Balance Sheet Related Disclosures [Abstract]
Deposits Assets, Noncurrent	$ 145.2	$ 145.0
Amortization of Other Deferred Charges	$ 42.0

Stockholders' Deficit (Tables)

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

Schedule of Common Stock Repurchase

The summary of the Company’s common stock repurchases are as follows:


	2025				2024				2023
	Shares		Average Price		Shares		Average Price		Shares		Average Price
	(In millions, except average price amounts)
Total repurchases under the repurchase plans	3.4		$	252.42	6.6		$	183.84	4.2		$	210.28
Total repurchases for tax withholdings	0.1		$	247.80	0.1		$	188.23	0.1		$	211.29
Total repurchases	3.5		$	252.29	6.7		$	183.90	4.3		$	210.30
Total costs	$	881.6			$	1,225.6			$	901.4

Dividends Declared

The Company initiated a quarterly cash dividend in April 2025. A summary of the Company’s dividend activities for the periods presented is as follows:


Record Date	Payment Date	Dividend Per Share		Total
		(In millions, except per share amounts)
May 19, 2025	May 28, 2025	$	0.77	$	72.1
August 19, 2025	August 27, 2025	0.77		72.0
November 18, 2025	November 25, 2025	0.77		71.1
		$	2.31	$	215.2

Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,656.6	$ 1,557.4	$ 1,493.1
U.S. [Member]
Disaggregation of Revenue [Line Items]
Total revenues	1,093.1	1,035.5	994.7
EMEA [Member]
Disaggregation of Revenue [Line Items]
Total revenues	279.4	249.6	228.2
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenues	184.6	175.7	174.8
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 99.5	$ 96.6	$ 95.4

- 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.

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- 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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-Subparagraph (SX 210.13-02(a)(4)(iv))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
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-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 28: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 30
-Subparagraph (a)
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Reference 29: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Subparagraph (b)
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Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
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Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

Employee Benefits And Stock-Based Compensation (401(k) Plan To 2007 Employee Stock Purchase Plan) (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contribution as a percentage of employee's annual salary	8.00%
Employer contribution under the plan	$ 6.4	$ 6.0	$ 5.8
Purchase price of common stock as percentage of lower of fair market value of common stock share on first day of offering period or last day of purchase period	85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	2.7
401 (k) Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee's contribution under the plan	50.00%
Two Thousand Six Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock were reserved for issuance	7.0
Minimum [Member] \| Two Thousand Seven Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of compensation withheld to cover purchase price of common stock	2.00%
Maximum [Member] \| Two Thousand Seven Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of compensation withheld to cover purchase price of common stock	25.00%

Debt And Interest Expense

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Debt And Interest Expense

Debt

Senior Notes

The following table summarizes information related to our senior notes:


	Issuance Date	Maturity Date	Interest Rate		Principal
					As of December 31,
					2025		2024
					(in millions except interest rates)
Senior notes due 2025	March 27, 2015	April 1, 2025	5.25	%	$	—	$	500.0
Senior notes due 2027	July 5, 2017	July 15, 2027	4.75	%	550.0		550.0
Senior notes due 2031	June 8, 2021	June 15, 2031	2.70	%	750.0		750.0
Senior notes due 2032	March 11, 2025	June 1, 2032	5.25	%	500.0		—
Less: unamortized issuance costs					(11.8)		(7.7)
Total senior notes					1,788.2		1,792.3
Less: current portion of senior notes due 2025					—		(299.8)
Total long-term senior notes					$	1,788.2	$	1,492.5

On March 11, 2025, the Company issued $500.0 million of 5.25% senior unsecured notes due June 1, 2032 (“2032 Notes”). The 2032 Notes were issued at 99.581% of par value. Interest payments on the 2032 Notes commenced June 1, 2025 and are due semi-annually. The total discount and issuance costs of $6.7 million are presented on the balance sheet as a reduction of the debt obligation and are being amortized to Interest expense over the 7-year term of the notes.

On March 31, 2025, the Company used the net proceeds from the 2032 Notes and cash on hand to fund the repayment of all of its $500.0 million aggregate principal amount of outstanding 5.25% senior unsecured notes (“2025 Notes”), prior to their maturity on April 1, 2025.

The $750.0 million of 2.70% senior unsecured notes due June 15, 2031 were issued at 99.712% of par value. The $550.0 million of 4.75% senior unsecured notes due July 15, 2027 were issued at par. All outstanding senior notes are senior unsecured obligations of the Company. Each of the senior notes issuances is redeemable, in whole or in part, at the Company’s option at times and redemption prices specified in the indentures. Interest is payable on each of the senior notes semi-annually. Cash paid for interest was $78.7 million in 2025 and $72.8 million each in 2024 and 2023.

2023 Credit Facility

On December 6, 2023, the Company entered into a credit agreement for a $200.0 million committed unsecured revolving credit facility (the “2023 Credit Facility”) which takes the place of its prior unsecured revolving credit facility. The 2023 Credit Facility includes a financial covenant requiring that the Company’s leverage ratio not exceed 4.0 to 1.0, which may be increased subject to certain conditions defined in the 2023 Credit Facility Agreement. As of December 31, 2025, there were no borrowings outstanding under the 2023 Credit Facility, and the Company was in compliance with the financial covenants. The 2023 Credit Facility expires on December 6, 2028, at which time any outstanding borrowings are due. Verisign may from time to time request lenders to agree on a discretionary basis to increase the commitment amount by up to an aggregate of $150.0 million.

- 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
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-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
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-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
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-Section 50
-Paragraph 6
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477092/405-40-50-1

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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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
-Topic 835
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-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
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-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
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-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
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-Publisher FASB
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Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
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Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Employee Benefits And Stock-Based Compensation (Summary Of Unvested RSUs Activity) (Details) - $ / shares shares in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at beginning of period, Shares	0.7
Granted, Shares	0.4
Vested and settled, Shares	(0.3)
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures	(0.1)
Unvested at end of period, Shares	0.7	0.7
Unvested at beginning of period, Weighted-Average Grant-Date Fair Value	$ 203.36
Granted, Weighted-Average Grant-Date Fair Value	226.12	$ 194.76	$ 212.80
Vested and settled, Weighted-Average Grant-Date Fair Value	206.43
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	210.48
Unvested at end of period, Weighted-Average Grant-Date Fair Value	$ 213.00	$ 203.36

- 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

Employee Benefits And Stock-Based Compensation

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Employee Benefits And Stock-Based Compensation

Employee Benefits and Stock-based Compensation

401(k) Plan

The Company maintains a defined contribution 401(k) plan (the “401(k) Plan”) for substantially all of its U.S. employees. Under the 401(k) Plan, eligible employees may contribute up to 50% of their pre-tax salary, subject to the Internal Revenue Service (“IRS”) annual contribution limits. The Company matches 50% of up to the first 8% of the employee’s annual salary contributed to the plan. The Company contributed $6.4 million in 2025, $6.0 million in 2024, and $5.8 million in 2023 under the 401(k) Plan. The Company can terminate matching contributions at its discretion at any time.

Equity Incentive Plan

The majority of Verisign’s stock-based compensation relates to RSUs granted under the 2006 Equity Incentive Plan (the “2006 Plan”). As of December 31, 2025, a total of 7.0 million shares of common stock remain reserved for issuance upon the vesting of RSUs and for the future grant of equity awards. The 2006 Plan authorizes the award of incentive stock options to employees and non-qualified stock options, restricted stock awards, RSUs, stock bonus awards, stock appreciation rights and performance shares to eligible employees, officers, directors, consultants, independent contractors and advisers. The 2006 Plan is administered by the Compensation Committee which may delegate to a committee of one or more members of the Board or Verisign’s officers the ability to grant certain awards and take certain other actions with respect to participants who are not executive officers or non-employee directors. RSUs are awards covering a specified number of shares of Verisign common stock that may be settled by issuance of those shares (which may be restricted shares). RSUs generally vest over four years. Certain RSUs with performance and market conditions (“PSUs”), granted to the Company’s executives, generally vest over a three-year term. Additionally, the Company has granted fully vested RSUs to members of its Board in each of the last three years. The Compensation Committee may authorize grants with a different vesting schedule in the future.

2007 Employee Stock Purchase Plan

Eligible employees of the Company may purchase common stock under the 2007 Employee Stock Purchase Plan through payroll deductions by electing to have between 2% and 25% of their compensation withheld to cover the purchase price. Each participant is granted an option to purchase common stock. This option is automatically exercised on the last day of each six-month purchase period during the offering period. The purchase price for the common stock under the ESPP is 85% of the lesser of the fair market value of the common stock on the first day of the applicable offering period or the last day of the applicable purchase period. Offering periods begin on the first business day of February and August of each year. As of December 31, 2025, 2.7 million shares of the Company’s common stock remain reserved for future issuance under this plan.

Stock-based Compensation

Stock-based compensation is classified in the Consolidated Statements of Comprehensive Income in the same expense line items as cash compensation. The following table presents the classification of stock-based compensation:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
Cost of revenues	$	8.7	$	8.0	$	7.1
Research and development	11.3		10.6		10.0
Selling, general and administrative	49.7		42.5		42.6
Stock-based compensation expense	69.7		61.1		59.7
Capitalization (included in Property and equipment, net)	0.9		1.0		1.1
Total stock-based compensation	$	70.6	$	62.1	$	60.8

The following table presents the nature of the Company’s total stock-based compensation:


	Year Ended December 31,
	2025		2024		2023
	(In millions)
RSUs	$	53.1	$	49.9	$	47.1
PSUs	13.7		8.2		9.3
ESPP	3.8		4.0		4.4
Total stock-based compensation	$	70.6	$	62.1	$	60.8

The income tax benefit that was included within Income tax expense related to these stock-based compensation expenses for 2025, 2024, and 2023 was $14.6 million, $12.4 million, and $11.7 million, respectively.

RSUs Information

The following table summarizes unvested RSUs activity for the year ended December 31, 2025:


	Shares	Weighted-Average Grant-Date Fair Value
	(Shares in millions)
Unvested at beginning of period	0.7	$	203.36
Granted	0.4	$	226.12
Vested and settled	(0.3)	$	206.43
Forfeited	(0.1)	$	210.48
Unvested at end of period	0.7	$	213.00

The RSUs in the table above include PSUs. The unvested RSUs as of December 31, 2025 include 0.2 million PSUs. The number of shares received upon vesting of these PSUs may range from 0.1 million to 0.4 million depending on the level of performance achieved and whether any market conditions are satisfied.

The closing price of Verisign’s stock was $242.95 on December 31, 2025. As of December 31, 2025, the aggregate market value of unvested RSUs was $174.1 million. The fair values of RSUs that vested during 2025, 2024, and 2023 were $73.9 million, $52.6 million, and $58.8 million, respectively. The weighted-average grant-date fair value of RSUs granted during the years ended December 31, 2024 and 2023, was $194.76 and $212.80, respectively. As of December 31, 2025, total unrecognized compensation cost related to unvested RSUs was $109.7 million which is expected to be recognized over a weighted-average period of 2.4 years.