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Amount Adjustment to Compensation Amount Tranche two Share-Based Payment Arrangement, Tranche Two [Member] Document Period End Date Document Period End Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Adoption Date Trading Arrangement Adoption Date Exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Entity Central Index Key Entity Central Index Key Amortization of debt issuance costs Amortization of Debt Issuance Costs and Discounts Total stock-based compensation expense, net Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Provision for (benefit from) income taxes Income Tax Expense (Benefit) Aggregate intrinsic value, Expected to vest Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Intrinsic Value, Expected To Vest Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Aggregate Intrinsic Value, Expected To Vest Accrued employee compensation Employee-related Liabilities, Current Vesting [Axis] Vesting [Axis] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Name Trading Arrangement, Individual Name Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Contract costs, noncurrent Capitalized Contract Cost, Net, Noncurrent Reclassification adjustment for realized gain (loss) included in net income (loss) Reclassification adjustment for realized gain (loss) on available-for-sale securities, included in net income (loss) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Total revenue Revenue from Contract with Customer, Excluding Assessed Tax Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Money market funds Money Market Funds [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Gross profit: Gross Profit [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Convertible senior notes, net Senior Notes Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Accelerated Share Repurchase Agreement Accelerated Share Repurchase Agreement [Member] Accelerated Share Repurchase Agreement Shares repurchased (in shares) Treasury Stock, Shares, Acquired Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Sales and marketing Selling and Marketing Expense [Member] Sale of strategic investment Proceeds from Sale of Equity Method Investments Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Cost of license revenue Cos Of License Revenues [Member] Cos Of License Revenues Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Total Cash, Cash Equivalents And Debt Securities, Available For Sale Cash, Cash Equivalents And Debt Securities, Available For Sale Contract with Customer, Asset and Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Operating expenses: Operating Expenses [Abstract] Revenue Revenue from Contract with Customer [Text Block] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Company Selected Measure Amount Company Selected Measure Amount Additional paid-in capital Additional Paid in Capital, Common Stock Additional paid-in capital Additional Paid-in Capital [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] TOTAL ASSETS Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Share Repurchase Program [Axis] Share Repurchase Program [Axis] Document Information [Line Items] Cover [Abstract] Exercisable, weighted average remaining contractual life Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition United States UNITED STATES Other liabilities Other Liabilities, Noncurrent Released (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Remaining performance obligation, amount Revenue, Remaining Performance Obligation, Amount Short-term investments Short-Term Investments John Mullen [Member] John Mullen Total operating expenses Operating Expenses Foreign government bonds Debt Security, Government, Non-US [Member] NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Equity Component [Domain] Equity Component [Domain] Adjustment to Compensation: Adjustment to Compensation [Axis] Equity consideration Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Unbilled accounts receivable, net Contract with Customer, Asset, after Allowance for Credit Loss Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Entity Current Reporting Status Entity Current Reporting Status Concentration Risk Type [Domain] Concentration Risk Type [Domain] Income (loss) from operations Operating Income (Loss) Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Revenue: Revenues [Abstract] Aggregate intrinsic value, Nonvested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Vested and expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Stock-based compensation expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount Weighted Average Remaining Contractual Life Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Tranche One Share-Based Payment Arrangement, Tranche One [Member] Accounting Standards Update 2020-06 [Member]