Common stock granted Awarded (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Document Type Document Type Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Other income, net Other Nonoperating Income (Expense) Operating Lease Not Yet Commenced Two Lessee Operating Lease Not Yet Commenced Two [Member] Lessee operating lease not yet commenced two. Options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Marketable Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Vesting of restricted stock units, shares Stock Issued During Period, Shares, Vesting Of Restricted Stock Units Stock issued during period, shares, vesting of restricted stock units. 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Statistical Measurement Statistical Measurement [Domain] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Security Exchange Name Security Exchange Name Vesting of early exercised stock options Stock Issued During Period, Value, Vesting Of Early Exercised Stock Options Stock Issued During Period, Value, Vesting Of Early Exercised Stock Options Debt instrument, net proceeds from sale of notes Proceeds from Convertible Debt Sales and marketing Selling and Marketing Expense [Member] Operating (loss) income Operating Income (Loss) Commercial debt securities Commercial Debt Security [Member] Commercial debt security. Total current liabilities Liabilities, Current Service-based Restricted Shares Performance Shares [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Beginning balance (in dollars per share) Ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] COMMITMENTS AND CONTINGENCIES (NOTE 8) Commitments and Contingencies Interest Income and Other Income, Net Interest and Other Income [Text Block] ASSETS Assets [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Service based vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Accounting Policies [Abstract] Accounting Policies [Abstract] Convertible senior notes, net Net carrying amount Convertible Notes Payable, Noncurrent Furniture and fixtures Furniture and Fixtures [Member] Entity Address, State or Province Entity Address, State or Province Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Cash paid for amounts included in measurement of lease liabilities Operating Lease, Payments Accounts payable Accounts Payable, Current Foreign currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) Accumulated deficit Retained Earnings (Accumulated Deficit) Operating lease assets Operating Lease, Right-of-Use Asset RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH WITHIN THE CONDENSED CONSOLIDATED BALANCE SHEETS TO THE AMOUNTS SHOWN IN THE STATEMENTS OF CASH FLOWS ABOVE: Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Accrued property and equipment purchases Noncash or Part Noncash Acquisition, Fixed Assets Acquired 2022 Lessee, Operating Lease, Liability, to be Paid, Year One Summary of Net Carrying Amount of Liability and Equity Component of 2025 Notes Convertible Debt [Table Text Block] Class B Common Stock Common Class B [Member] Cash paid for income taxes Income Taxes Paid Stock issuable upon the exercise of options outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 2025 Lessee, Operating Lease, Liability, to be Paid, Year Four New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Beginning balance, shares Ending balance, shares Shares, Outstanding U.S. government treasury securities US Treasury and Government [Member] Total operating expenses Operating Expenses Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax [Abstract] Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Other liabilities Other Liabilities, Noncurrent Accounting Standards Update 2020-06 Accounting Standards Update 2020-06 [Member] Accounting Standards Update 2020-06 Aggregate fair value of options vested Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Income Taxes [Table] Income Taxes [Table] Income tax [Table]. 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Statement [Table] Statement [Table] Statistical Measurement Statistical Measurement [Axis] Initial cap price per share of capped calls Initial Cap Price Per Share Of Capped Calls Initial cap price per share of capped calls. 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Redemption, On or After June 20, 2023, and Prior to 31st Scheduled Trading Day Debt Instrument, Redemption, Period One [Member] Goodwill [Roll Forward] Goodwill [Roll Forward] Amendment Flag Amendment Flag Schedule of Calculation of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Finite-Lived Intangible Assets, Major Class Name Finite-Lived Intangible Assets, Major Class Name [Domain] Total stock-based compensation expense Share-based Payment Arrangement, Expensed and Capitalized, Amount Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Entity Central Index Key Entity Central Index Key Measurement Frequency Measurement Frequency [Axis] Marketable securities Debt Securities, Available-for-sale, Current Capitalized software development costs Payments to Develop Software Financial Instruments Financial Instruments [Domain] Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Intangible Assets, Net Schedule of Finite-Lived Intangible Assets [Table Text Block] Geographical Geographical [Axis] Subsequent Events Subsequent Events [Text Block] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Total compensation cost related to unvested awards not yet recognized Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Operating lease, renewal term Lessee, Operating Lease, Renewal Term Marketable Securities [Line Items] Marketable Securities [Line Items] Unrealized Gain Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Deferred contract costs, current Deferred Costs, Current Long-Lived Tangible Asset Long-Lived Tangible Asset [Axis] Issuance cost attributable to liability component Debt Issuance Cost Attributable To Liability Component Debt issuance cost attributable to liability component. Income Statement Location Income Statement Location [Axis] Accounts receivable, net of allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current 2020 Acquisition Two Thousand Twenty Acquisition [Member] Two Thousand Twenty Acquisition Issuance of restricted shares of common stock from acquisition Stock Issued During Period, Value, Acquisitions Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Income Statement Location Income Statement Location [Domain] 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Intangible amortization expense Amortization of Intangible Assets Summary of Components of Lease Cost Recognized Lease, Cost [Table Text Block] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Interest income and other income, net Interest income and other income, net Interest and Other Income Other assets Other Assets, Noncurrent Plan Name Plan Name [Axis] Debt instrument, threshold percentage of conversion price Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Cash equivalents: Cash and Cash Equivalents, Fair Value Disclosure TOTAL ASSETS Assets Total Interest Expense, Debt Beginning balance (in shares) Ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Title of 12(b) Security Title of 12(b) Security Debt Instrument, Convertible, Terms [Axis] Debt Instrument, Convertible, Terms [Axis] Debt Instrument, Convertible, Terms Intangible assets, net Net Carrying Amount Finite-Lived Intangible Assets, Net Weighted average grant-date fair value of options granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Subsequent Event Type [Axis] Subsequent Event Type [Axis] Unrealized loss on available-for-sale marketable securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Antidilutive Securities Antidilutive Securities [Axis] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Cost of revenue Cost of Sales [Member] Interest expense Interest Expense Allocation of undistributed (loss) income Undistributed Earnings (Loss) Available to Common Shareholders, Diluted Depreciation and amortization expense Depreciation, Depletion and Amortization Total liabilities Liabilities Vesting of early exercised options Non Cash Vesting Of Early Exercised Options Non cash vesting of early exercised options. Weighted average period over compensation cost related to unvested employee awards Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition International Non-US [Member] Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Employee stock purchase plan Shares subject to the employee stock purchase plan Shares Subject To Employee Stock Purchase Plan [Member] Shares Subject To Employee Stock Purchase Plan Revenue recognized Contract with Customer, Liability, Revenue Recognized Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Level 1 Fair Value, Inputs, Level 1 [Member] Costs related to initial public offering included in accounts payable and accrued liabilities Non Cash Costs Related To Initial Public Offering Included In Accounts Payable And Accrued Liabilities Non cash costs related to initial public offering included in accounts payable and accrued liabilities. Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Summary of Supplemental Cash Flow Information and Non-cash Activity Supplemental Cash Flow Information And Non Cash Activity [Table Text Block] Supplemental cash flow information and non-cash activity. Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Accounts payable Increase (Decrease) in Accounts Payable Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Debt Instrument Debt Instrument [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Adjustments to reconcile net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] 2021 Acquisition Two Thousand Twenty One Acquisition [Member] Two thousand twenty acquisition. Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] (Loss) income before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Research and development Research and Development Expense Subsequent Event Subsequent Event [Member] Beginning balance (in dollars per share) Ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Cash paid for acquisition of businesses; net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Common stock, authorized (in shares) Common Stock, Shares Authorized Summary of Activity for Unvested RSUs Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Dilutive effect of share-based payment arrangements (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Schedule of Revenue by Geographic Area Revenue from External Customers by Geographic Areas [Table Text Block] Total property and equipment Property, Plant and Equipment, Gross Proceeds from exercise of stock options Proceeds from Stock Options Exercised Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Contractual interest expense Interest Expense, Debt, Excluding Amortization Early exercise of common stock (in shares) Common Stock Issued Subject To Repurchase Related To Early Exercise Of Options Common stock issued subject to repurchase related to early exercise of options. Income Statement [Abstract] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Summary of Fair Values of Available-for-Sale Marketable Securities, by Remaining Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Deferred contract costs Increase (Decrease) in Deferred Charges Operating lease liabilities, non-current Operating Lease, Liability, Noncurrent Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Use of Estimates Use of Estimates, Policy [Policy Text Block] CURRENT ASSETS: Assets, Current [Abstract] Amortization expense Amortization Capitalized software development costs Software and Software Development Costs [Member] Comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Beginning balance Ending balance Capitalized Contract Cost, Net Number of equity incentive plan Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Equity Incentive Plan Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Equity Incentive Plan Conversion, On or After March 15, 2025 Scenario Three [Member] Scenario three. Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment City Area Code City Area Code Document Period End Date Document Period End Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Convertible Senior Notes Long-term Debt [Text Block] Acquisition, Intangible Assets and Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Unvested early exercises Unvested Early Exercises Awards [Member] Unvested Early Exercises Awards Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Stock-based compensation included in capitalized software development costs Capitalized stock-based compensation expense Share-based Payment Arrangement, Amount Capitalized Stock-based compensation, net of amounts capitalized Share-based Payment Arrangement, Noncash Expense Issuance cost attributable to equity component Debt Issuance Cost Attributable To Equity Component Debt issuance cost attributable to equity component. Employee payroll taxes paid related to net share settlement under the employee stock purchase plan Amounts withheld on behalf of employees for a future purchase Payment, Tax Withholding, Share-based Payment Arrangement Marketable Securities [Table] Marketable Securities [Table] Cover [Abstract] Cover [Abstract] 2021 acquisition Goodwill, Acquired During Period Summary of Available-for-Sale Marketable Securities Debt Securities, Available-for-sale [Table Text Block] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Deferred revenue Increase (Decrease) in Contract with Customer, Liability Leases Lessee, Operating Leases [Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Restricted cash – Including amounts in prepaid expense and other current assets and other assets Restricted Cash and Cash Equivalents Amortization of discounts or premiums on marketable securities Accretion (Amortization) of Discounts and Premiums, Investments Cost of revenue Cost of Goods and Services Sold Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Fair Value Marketable Securities: Debt Securities, Available-for-sale Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Equity Components [Axis] Equity Components [Axis] Unvested restricted stock in connection with acquisition Restricted Stock [Member] Deferred contract costs Deferred Costs Debt Instrument, Name Debt Instrument, Name [Domain] Minimum Minimum [Member] Operating lease liabilities, current Operating Lease, Liability, Current Total compensation cost related to unvested awards not yet recognized Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Forfeited/cancelled ((in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Entity Interactive Data Current Entity Interactive Data Current Options exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Fair Value Measurements Fair Value Disclosures [Text Block] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Operating Lease Not Yet Commenced One Lessee Operating Lease Not Yet Commenced One [Member] Lessee operating lease not yet commenced one. Summary of Stock Option Activity and Weighted Average Exercise Prices Share-based Payment Arrangement, Option, Activity [Table Text Block] Summary of Weighted Average Remaining Lease Term and Discount Rate Weighted Average Remaining Lease Term And Discount Rate [Table Text Block] Weighted average remaining lease term and discount rate. Amortization Period Finite-Lived Intangible Assets, Remaining Amortization Period Maturities of marketable securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Remainder of 2021 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Additional paid-in capital Additional Paid in Capital, Common Stock Entity Registrant Name Entity Registrant Name Subsequent Event Type [Domain] Subsequent Event Type [Domain] Business Acquisition [Line Items] Business Acquisition [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Unvested early exercised stock options and restricted stock Unvested Early Exercised Stock Options And Restricted Stock [Member] Unvested early exercised stock options and restricted stock. Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Financial Assets: Assets, Fair Value Disclosure [Abstract] Debt issuance costs Debt Issuance Costs, Net Weighted- Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Other income: Other Nonoperating Income (Expense) [Abstract] Debt instrument, effective interest rate Debt Instrument, Interest Rate, Effective Percentage Weighted-average effect of diluted securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Research and development Research and Development Expense [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Accounts receivable, net of allowance for credit losses of $2,317 and $2,468 as of March 31, 2021 and December 31, 2020, respectively Accounts Receivable, after Allowance for Credit Loss, Current Undiscounted future payments Total lease payments Lessee, Operating Lease, Liability, to be Paid Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Debt instrument, trading days Debt Instrument, Convertible, Threshold Trading Days Accounting Standards Update Accounting Standards Update [Axis] Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Domain] Restricted cash Restricted Cash, Noncurrent Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Entity Address, Postal Zip Code Entity Address, Postal Zip Code Conversion Preceding March 15, 2025, Scenario One Scenario One [Member] Scenario one. Schedule of Interest Income and Other Income, Net Interest and Other Income [Table Text Block] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Debt instrument, convertible, threshold maximum percentage of product of last reported sale price of common stock Debt Instrument Convertible Threshold Maximum Percentage Of Product Of Last Reported Sale Price Of Common Stock Debt instrument, convertible, threshold maximum percentage of product of last reported sale price of common stock. 2026 Lessee Operating Lease Liability Payments Due After Year Four Lessee operating lease liability payments due after year four. Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Other comprehensive loss: Change in accumulated other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Document Transition Report Document Transition Report Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Axis] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Principal Debt Instrument, Face Amount Level 2 Fair Value, Inputs, Level 2 [Member] Document Quarterly Report Document Quarterly Report Schedule of Changes in Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Options forfeited or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period General and administrative General and Administrative Expense [Member] Common stock, number of shares converted Conversion of Stock, Shares Converted Equity [Abstract] Equity [Abstract] Total financial assets Assets, Fair Value Disclosure Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Common stock covered under capped calls (in shares) Common Stock Covered Under Capped Calls Transaction Common stock covered under capped calls transaction. SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Deferred revenue, current Contract with Customer, Liability, Current Subsequent Event [Line Items] Subsequent Event [Line Items] Accounting Standards Update [Extensible List] Accounting Standards Update [Extensible List] Options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Cumulative Effect, Period of Adoption Cumulative Effect, Period of Adoption [Axis] Debt instrument, conversion price per share (in dollars per share) Debt Instrument, Convertible, Conversion Price Schedule of Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Due in one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Weighted average shares used in calculating diluted net income (loss) per share (in shares) Number of shares used in diluted calculation (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic net (loss) income per share (in dollars per share) Basic net income (loss) per share (in dollars per share) Earnings Per Share, Basic Entity File Number Entity File Number 0.125% Convertible Senior Notes due 2025 Zero Point One Two Five Percent Convertible Senior Notes Due Two Thousand And Twenty Five [Member] Zero point one two five percent convertible senior notes due two thousand and twenty five. Forfeited/canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Debt Disclosure [Abstract] Debt Disclosure [Abstract] Weighted-average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Sqreen, Inc Sqreen, Inc [Member] Sqreen, Inc Sales and marketing Selling and Marketing Expense Debt instrument, fair value calculation base Debt Instrument, Fair Value Calculation Base Debt Instrument, Fair Value Calculation Base Amortization of issuance costs Amortization of Debt Issuance Costs and Discounts Purchase consideration in cash and stock to acquire business deferred percentage Business Combination Consideration Transferred Deferred Percentage Business Combination Consideration Transferred Deferred Percentage Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Remaining performance obligations Revenue, Remaining Performance Obligation, Amount Share-based payment arrangement, expense Stock-based compensation, net of amounts capitalized Share-based Payment Arrangement, Expense Common stock, value Common Stock, Value, Issued Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Document Fiscal Year Focus Document Fiscal Year Focus 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Commercial paper Commercial paper Commercial Paper [Member] Schedule of Deferred Contract Costs Capitalized Contract Cost [Table Text Block] Entity Current Reporting Status Entity Current Reporting Status Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan. Subsequent Event [Table] Subsequent Event [Table] Purchases of marketable securities Payments to Acquire Debt Securities, Available-for-sale Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Awarded (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Common stock, issued (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Due within one year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Present value of lease liabilities Operating Lease, Liability Debt instrument redemption price percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Accounts receivable, net Increase (Decrease) in Accounts Receivable Debt Instrument [Line Items] Debt Instrument [Line Items] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Total stockholders’ equity Beginning balance Ending balance Stockholders' equity Stockholders' Equity Attributable to Parent Purchase consideration in cash and stock to acquire business Business Combination, Consideration Transferred Debt instrument, convertible carrying amount of equity component Debt Instrument Discount For Conversion Option Debt instrument, discount for conversion option. TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Income Taxes Income Tax Disclosure [Text Block] Entity Address, City or Town Entity Address, City or Town Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] Restricted Stock Units Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Movement In Capitalized Contract Cost [Roll Forward] Movement In Capitalized Contract Cost [Roll Forward] Movement In Capitalized Contract Cost Operating lease cost Operating Lease, Cost Number of consecutive business days after any five consecutive trading day period during the note measurement period Debt Instrument Convertible Threshold Business Days Debt instrument convertible threshold business days. General and administrative General and Administrative Expense Financial Instrument Financial Instrument [Axis] Accounting Standards Update Accounting Standards Update [Domain] Potentially dilutive securities not included in diluted per share calculations (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of common stock classes Number Of Common Stock Classes Number Of Common Stock Classes Interest and Other Income [Abstract] Interest and Other Income [Abstract] Short-term lease cost Short-term Lease, Cost Equity Component Equity Component [Domain] Operating lease, termination term Lessee Operating Lease Termination Term Lessee operating lease termination term. Cost incurred to purchase capped calls Cost Incurred To Purchase Capped Calls Cost incurred to purchase capped calls. Gross profit Gross Profit Property and equipment, net Total property and equipment, net Property, Plant and Equipment, Net 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Entity Tax Identification Number Entity Tax Identification Number Interest income Interest Income (Expense), Nonoperating, Net 2019 Equity Incentive Plan Two Thousand Nineteen Equity Incentive Plan [Member] Two Thousand Nineteen Equity Incentive Plan. Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Net (loss) income Net (loss) income attributable to common stockholders Net (loss) income Net Income (Loss) Attributable to Parent Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Remainder of 2021 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Leases [Abstract] Leases [Abstract] Total current assets Assets, Current Current Fiscal Year End Date Current Fiscal Year End Date Operating expenses: Operating Expenses [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] STOCKHOLDERS' EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Purchase price was allocated to intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Developed technology Developed Technology Rights [Member] Number Of Options Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Document Fiscal Period Focus Document Fiscal Period Focus Debt Instrument, Convertible, Terms [Domain] Debt Instrument, Convertible, Terms [Domain] Debt Instrument, Convertible, Terms Conversion of Class B to Class A common shares outstanding (in shares) Weighted Average Number Diluted Shares Outstanding Conversion Of Common Shares Class Weighted average number diluted shares outstanding conversion of common shares class. 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stock options (in shares) Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 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 Acquisition, Intangible Assets and Goodwill Business Combination Disclosure [Text Block] Summary of Maturities of Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Employee stock options Share-based Payment Arrangement, Option [Member] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Issuance of restricted shares of common stock for the acquisition of businesses Stock Issued Weighted average shares used in calculating basic net income (loss) per share (in shares) Weighted-average shares used in calculating net income (loss) per share, basic (in shares) Number of shares used in basic calculation (in shares) Weighted Average Number of Shares Outstanding, Basic Subsequent Events [Abstract] Options forfeited or expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Document Information [Line Items] Document Information [Line Items] Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Plan Name Plan Name [Domain] Revenue Revenue from Contract with Customer [Text Block] Operating lease assets obtained in exchange for new lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Organization and Description of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Proceeds from initial public offering, net of underwriting discounts and commissions and other offering cost Proceeds from Issuance Initial Public Offering Debt instrument, estimated fair value (in dollars per share) Long-term Debt, Fair Value 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Class of Stock Class of Stock [Axis] Provision for income taxes Income Tax Expense (Benefit) Matching contributions to the 401(k) plan Defined Contribution Plan, Employer Discretionary Contribution Amount Additions to deferred contract costs Capitalized Contract Cost, Addition Capitalized Contract Cost, Addition Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Diluted net (loss) income per share (in dollars per share) Diluted net income (loss) per share (in dollars per share) Earnings Per Share, Diluted Proceeds from sale of marketable securities Proceeds from Sale of Debt Securities, Available-for-sale Local Phone Number Local Phone Number Cumulative Effect, Period of Adoption Cumulative Effect, Period of Adoption [Domain] Accrued expenses and other current liabilities Accrued Liabilities and Other Liabilities Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Shares subject to outstanding stock options and restricted stock units Employee Stock Option And Restricted Stock Unit [Member] Employee stock option and restricted stock unit. Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Other assets Increase (Decrease) in Other Operating Assets Entity Emerging Growth Company Entity Emerging Growth Company Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Issuance of common stock upon exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Debt instrument, consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Award Type Award Type [Axis] Weighted- Average Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Lease Contractual Term Lease Contractual Term [Domain] Maximum Maximum [Member] Amortization of issuance costs Amortization of Debt Issuance Costs Accumulated Deficit Retained Earnings [Member] Interest Expense related to 2025 Notes Interest Income and Interest Expense Disclosure [Table Text Block] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Weighted-average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Allowance for doubtful accounts receivable deemed uncollectible Accounts Receivable, Allowance for Credit Loss Award Type Award Type [Domain] Corporate debt securities Corporate Debt Securities [Member] Trading Symbol Trading Symbol Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Operating lease, non-cash lease expense Operating Lease Non Cash Lease Expense Operating lease non-cash lease expense. Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Common stock, number of votes per share Common Stock, Voting Rights, Number Of Vote Per Share Common Stock, Voting Rights, Number Of Vote Per Share Acquisition, Intangible Assets And Goodwill [Abstract] Acquisition, Intangible Assets And Goodwill Net (Loss) Income Per Share Earnings Per Share [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] CURRENT LIABILITIES: Liabilities, Current [Abstract] Entity Shell Company Entity Shell Company Reallocation of undistributed (loss) income as a result of conversion of Class B to Class A shares Reallocation Of Undistributed Income Loss Result Of Conversion Of Common Stock Reallocation of undistributed income (loss) result of conversion of common stock. Fair Value, Recurring Fair Value, Recurring [Member] Other expense, net Other Nonoperating Income Expense Net Other non operating income (expense) net. Accounting Pronouncements Recently Adopted New Accounting Pronouncements, Policy [Policy Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Basic net (loss) income per share: Earnings Per Share, Basic [Abstract]