Document Type Document Type Aggregate intrinsic value, Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Other income (expense), net Other Nonoperating Income (Expense) Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Payment related to contingent consideration Payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements 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] Accretion of debt discount on convertible senior notes Amortization of debt discount Amortization of Debt Discount (Premium) Treasury Stock Treasury Stock [Member] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Segments [Axis] Segments [Axis] 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 Increase in number of shares of common stock available for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Thereafter Finite-Lived Intangible Assets, Amortization Expense, After Year Four Finite-Lived Intangible Assets, Amortization Expense, After Year Four Debt issuance costs attributable to liability Debt Issuance Costs, Gross Estimated Amortization Expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Aggregate fair value, Expected to vest Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Expected To Vest Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Expected To Vest AdvantageTec AdvantageTec Inc [Member] AdvantageTec Inc [Member] Period used to determine volatility Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Period Used To Determine Volatility Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Period Used To Determine Volatility Statistical Measurement [Domain] 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] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Deferred tax liability Deferred Income Tax Liabilities, Net Security Exchange Name Security Exchange Name Intangibles, net Intangible Assets, Net (Excluding Goodwill) Finance lease right-of-use assets Finance Lease, Right-of-Use Asset, before Accumulated Amortization Estimated sales tax liability, including interest, minimum Estimated Sales Tax Liability, Including Interest, Minimum Estimated Sales Tax Liability, Including Interest, Minimum Sales and marketing Selling and Marketing Expense [Member] Loss from operations Operating Income (Loss) Schedule of Long-Lived Assets by Geographic Region Long-lived Assets by Geographic Areas [Table Text Block] Total current liabilities Liabilities, Current Severance and other compensation associated costs Severance Costs Schedule of Deferred Revenues and Contract Balances Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Beginning balance outstanding (in dollars per share) Non-vested and outstanding at end of period (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 Professional services and consulting and other vendor fees Accrued Professional Fees, Current Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Commitments and contingencies (Note 11) Commitments and Contingencies Total minimum lease payments Finance Lease, Liability, Payment, Due ASSETS Assets [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Accounting Policies [Abstract] Accounting Policies [Abstract] Convertible senior notes, net Convertible Notes Payable, Noncurrent Unrecognized tax benefits Taxes Payable, Current Entity Address, State or Province Entity Address, State or Province Income tax provision on operating income Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Operating cash flows for operating leases Operating Lease, Payments Accounts payable Accounts Payable, Current Foreign exchange adjustment Goodwill, Foreign Currency Translation Gain (Loss) Accrued Expenses and Other Current Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Other Commitments [Table] Other Commitments [Table] Accumulated deficit Retained Earnings (Accumulated Deficit) Operating lease right of use asset Operating lease right-of-use asset Operating Lease, Right-of-Use Asset Sales commissions Accrued Sales Commission, Current Unamortized discount Debt Instrument, Unamortized Discount Weighted Average Grant Date Fair Value (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Grant Date Fair Value [Abstract] [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Weighted Average Grant Date Fair Value [Abstract] [Roll Forward] Weighted Average Amortization Period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 2022 Lessee, Operating Lease, Liability, to be Paid, Year One Schedule of Carrying Amount of Convertible Debt and Related Interest Convertible Debt [Table Text Block] Australia AUSTRALIA Beginning balance (in shares) Ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 2022 Finance Lease, Liability, to be Paid, Year One 1998 Plan Nineteen Ninety Eight Plan [Member] Nineteen Ninety Eight Plan [Member] 2025 Lessee, Operating Lease, Liability, to be Paid, Year Four Schedule of Financial Assets and Liabilities Measured at Fair Value Schedule of Fair 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Stock Issued During Period, Value, Earnout Payment Stock Issued During Period, Value, Earnout Payment Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Proceeds from debt offering, net of debt issuance costs Proceeds from Debt, Net of Issuance Costs Property Plant And Equipment By Type [Axis] Long-Lived Tangible Asset [Axis] Effect of assumed exercised options (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Deferred revenue (long-term), increase (decrease), net Contract With Customer Liability, Noncurrent, Period Increase (Decrease), Net Contract With Customer Liability, Noncurrent, Period Increase (Decrease), Net Income Statement Location [Axis] Income Statement Location [Axis] Accounts receivable, allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Income Statement Location [Domain] Income Statement Location [Domain] 2023 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Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Less: present value adjustment Lessee, Operating Lease, Liability, Undiscounted Excess Amount Weighted average remaining contract term, Options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Accounts receivable, increase (decrease), net Accounts Receivable, Period Increase (Decrease), Net Accounts Receivable, Period Increase (Decrease), Net Recognition of deferred revenue Contract with Customer, Liability, Revenue Recognized Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Level 1 Fair Value, Inputs, Level 1 [Member] Rental expense for operating leases Operating Lease, Expense Increase in valuation allowance recorded as an expense Valuation Allowance, Deferred Tax Asset, Increase, Gross Valuation Allowance, Deferred Tax Asset, Increase, Gross Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Common stock as earnout payment in connection with AdvantageTec Inc. 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Other Lease Restructuring [Member] Other Restructuring. Other Lease Restructuring [Member] Interest Finance Lease, Interest Expense Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Match Step One Matching Tranche One [Member] Matching Tranche One [Member] Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Contract acquisition costs noncurrent, increase (decrease), net Capitalized Contract Costs, Period Increase (Decrease), Net Capitalized Contract Costs, Period Increase (Decrease), Net Hosted Services - Business Hosted Services - Business [Member] Hosted Services - Business [Member] Convertible senior note net Convertible Debt, Fair Value Disclosures Schedule of Goodwill [Table] Schedule of Goodwill [Table] APAC POSIT - ASIA PACIFIC [Member] Sales reserve Sales Reserve Sales Reserve Product development Research and Development Expense Operating Leases Lessee, Operating Leases [Abstract] Lessee, Operating Leases 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[Abstract] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Operating lease liability, net of current portion Long term operating lease liability Operating Lease, Liability, Noncurrent 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Four Defined Contribution Plan Match Groups [Axis] Defined Contribution Plan Match Groups [Axis] Defined Contribution Plan Match Groups [Axis] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Use of Estimates Use of Estimates, Policy [Policy Text Block] CURRENT ASSETS: Assets, Current [Abstract] Income Tax Authority [Domain] Income Tax Authority [Domain] Amortization expense Amortization Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2024 Finance Lease, Liability, to be Paid, Year Three Dividend yield (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Patents Patents [Member] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Contract acquisition costs Capitalized Contract Cost, Net Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Aggregate principal from exercise in full of over-allotment options Aggregate Principal From Exercise In Full Of Over-Allotment Options Aggregate Principal From Exercise In Full Of Over-Allotment Options Purchases of property and equipment, including capitalized software Payments to Acquire Property, Plant, and Equipment City Area Code City Area Code Consolidation Items [Domain] Consolidation Items [Domain] Netherlands Netherlands NETHERLANDS Income Tax Authority [Axis] Income Tax Authority [Axis] Document Period End Date Document Period End Date Contingent earn out liability Business Combination, Contingent Consideration, Liability Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text 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[Member] Entity Registrant Name Entity Registrant Name Business Acquisition [Line Items] Business Acquisition [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating leases, weighted average discount rate (percent) Operating Lease, Weighted Average Discount Rate, Percent Assets: Assets, Fair Value Disclosure [Abstract] Summary of Intangible Assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Other liabilities Increase (Decrease) in Other Operating Liabilities Allowance for Doubtful Accounts Accounts Receivable, Allowance for Credit Loss [Roll Forward] Number of Shares (in thousands) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Unamortized 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] Changes in fair value of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Other (expense) income, net Other Nonoperating Income (Expense) [Abstract] Less: present value adjustment Finance Lease, Liability, Undiscounted Excess Amount Consolidation Items [Axis] Consolidation Items [Axis] Product development Research and Development Expense [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Accounts receivable, net of allowances of $5,396 and $5,344 as of March 31, 2021 and December 31, 2020, respectively Accounts receivable, opening balance Accounts receivable, ending balance Accounts Receivable, after Allowance for Credit Loss, Current Total minimum lease payments Lessee, Operating Lease, Liability, to be Paid Number of draws Number Of Draws On Letters Of Credit Number Of Draws On Letters Of Credit Cash awards settled in shares of the Company's common stock Stock Issued During Period, Value, Bonus Payment Settled In Shares Stock Issued During Period, Value, Bonus Payment Settled In Shares Threshold trading days in consideration of note conversion Debt Instrument, Convertible, Threshold Trading Days Restructuring Restructuring liability Balance, Beginning of the year Balance, End of period Restructuring Reserve Bonus cash payment settled in shares of the Company's common stock (in shares) Stock Issued During Period, Shares, Bonus Payment Settled In Shares Stock Issued During Period, Shares, Bonus Payment Settled In Shares Operating leases remaining lease term Lessee, Operating Lease, Remaining Lease Term Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restructuring Type [Axis] Restructuring Type [Axis] Cash payments Payments for Restructuring Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Document Transition Report Document Transition Report Contingent 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Includes, but is not limited to, legal and accounting fees and other direct costs of issuance. 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Includes, but is not limited to, legal and accounting fees and direct costs associated with issuance. 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