Description Of Business And Summary Of Significant Accounting Policies (Policy)	12 Months Ended
Dec. 31, 2021
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.
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 five 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.
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 $12.1 million and $12.8 million of costs related to internally developed software during 2021 and 2020, 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, 2021, 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 (loss) income, net. Remeasurement gains and losses were not significant in each of the last three years. 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 usually placed and adjusted monthly. These foreign currency forward contracts are derivatives and are recorded at fair market value. The Company records gains and losses on foreign currency forward contracts in Non-operating (loss) income, net. Gains and losses related to foreign currency forward contracts were not significant in each of the last three years. As of December 31, 2021, Verisign held foreign currency forward contracts in notional amounts totaling $30.3 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. 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, Domain Name System (“DNS”) resolution and Whois 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 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.
Advertising Expenses	Advertising Expenses Advertising costs are expensed as incurred and are included in Sales and marketing expenses. Advertising expenses were $6.0 million, $7.5 million, and $12.8 million in 2021, 2020, and 2019, respectively.
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. 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 is 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 10, “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.
Commitments and Contingencies, Policy [Policy Text Block]	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 cannot assure you 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.

Description Of Business And Summary Of Significant Accounting Policies (Policy)

12 Months Ended

Dec. 31, 2021

Description Of Business And Summary Of Significant Accounting Policies [Abstract]

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.

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 five 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.

Capitalized Software

Software included in property and equipment includes amounts paid for purchased software and development costs for internally developed software. The Company capitalized $12.1 million and $12.8 million of costs related to internally developed software during 2021 and 2020, 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, 2021, 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 (loss) income, net. Remeasurement gains and losses were not significant in each of the last three years.

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 usually placed and adjusted monthly. These foreign currency forward contracts are derivatives and are recorded at fair market value. The Company records gains and losses on foreign currency forward contracts in Non-operating (loss) income, net. Gains and losses related to foreign currency forward contracts were not significant in each of the last three years.

As of December 31, 2021, Verisign held foreign currency forward contracts in notional amounts totaling $30.3 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. 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, Domain Name System (“DNS”) resolution and Whois 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 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.

Advertising Expenses

Advertising Expenses Advertising costs are expensed as incurred and are included in Sales and marketing expenses. Advertising expenses were $6.0 million, $7.5 million, and $12.8 million in 2021, 2020, and 2019, respectively.

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. 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 is 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 10, “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.

Commitments and Contingencies, Policy [Policy Text Block]

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 cannot assure you 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.