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Payable Issuance of common stock upon partial conversion of the 2023 convertible senior notes (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Property and equipment acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Commercial commitment to be paid year two Commercial Commitment, to be Paid, Year Two Commercial Commitment, to be Paid, Year Two Schedule of effective income tax reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Partial unwind of capped calls related to the 2023 convertible senior notes (in shares) Additional Paid in Capital, Unwinding of Capped Calls from Conversion of Convertible Securities, Shares Additional Paid in Capital, Unwinding of Capped Calls from Conversion of Convertible Securities, Shares Accounts payable Accounts Payable, Current Allowance for doubtful accounts Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Accounts Receivable, Allowance for Credit Loss Depreciation and amortization Total depreciation and amortization Depreciation, Depletion and Amortization Cap price of the capped call transactions (in dollars per share) Debt Instrument, Convertible, Capped Call Transactions, Cap Price Debt Instrument, Convertible, Capped Call Transactions, Cap Price Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Schedule of gross unrealized losses and fair value of marketable investments Unrealized Gain (Loss) on Investments [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Right of use assets Deferred Tax Liabilities, Right-of-use Assets Deferred Tax Liabilities, Right-of-use Assets Entity Central Index Key Entity Central Index Key Bishop Ranch Building Lease Bishop Ranch Building Lease [Member] Bishop Ranch Building Lease Antidilutive Securities Excluded from Computation of Earnings Per Share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Due after one year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Year, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Year, Fair Value Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Quarterly Financial Information [Line Items] Quarterly Financial Information [Line Items] Quarterly Financial Information Gross decreases — prior year tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Convertible, term one Debt Instrument, Convertible, Term One [Member] Debt Instrument, Convertible, Term One [Member] Customer relationships Customer Relationships [Member] Due within one year Debt Securities, Available-for-Sale, Amortized 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Assets [Table Text Block] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Issuance of common stock upon exercise of stock options (in shares) Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Number of shares covered in the capped call transactions (in shares) Debt Instrument, Capped Call Transactions, Shares Coverage Debt Instrument, Capped Call Transactions, Shares Coverage Fair Value, Recurring Fair Value, Recurring [Member] Commission expense Sales Commissions and Fees Finance lease, right-of-use asset, Balance Sheet location [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Schedule of securities excluded from calculation of diluted net loss per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Five Other (expense) income, net: Nonoperating Income (Expense) [Abstract] Auditor Firm ID Auditor Firm ID Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] RSUs vested and released, weighted-average grant date fair value per share (in USD 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 Class of Stock [Domain] Class of Stock [Domain] Accrued and other current liabilities Increase (Decrease) in Accrued Liabilities and Other Current Liabilities Increase (Decrease) in Accrued Liabilities and Other Current Liabilities Cash paid to acquire Inference and Virtual Observer Cash paid to acquire Virtual Observer Cash paid to acquire Inference Solutions Payments to Acquire Businesses, Gross Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Operating Activities, Lessee [Abstract] Convertible Senior Notes, Due 2023 Convertible Senior Notes, Due 2023 Convertible Senior Notes, Due 2023 [Member] Convertible Senior Notes, Due 2023 [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Other current assets Other Assets, Current Proceeds from sale of common stock under ESPP Proceeds from Stock Plans Liability Liability [Member] Advertising expense Advertising Expense Lease Arrangements [Axis] Lease Arrangements [Axis] Lease Arrangements Other assets Increase (Decrease) in Other Noncurrent Assets U.S. federal tax at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Cost of revenue Cost of Sales [Member] Equity component Debt Instrument, Conversion Option, Equity Component Debt Instrument, Conversion Option, Equity Component Accrued federal fees and sales tax liability Increase (Decrease) in Property and Other Taxes Payable Commissions Commissions, Policy [Policy Text Block] Foreign Current Foreign Tax Expense (Benefit) Common stock, $0.001 par value; 450,000 shares authorized, 68,488 shares and 66,496 shares issued and outstanding as of December 31, 2021 and 2020, respectively Common Stock, Value, Outstanding Developed technology Acquired technology Developed Technology Rights [Member] Gross Property and equipment, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization Due within one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Maximum annual increase of shares reserved (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Maximum Annual Increase of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Maximum Annual Increase of Shares Authorized Unamortized debt discount Debt Instrument, Unamortized Discount Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Schedule of valuation assumptions for stock option purchase plan Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]