Document Type Document Type Aggregate intrinsic value, Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Other (expense) income, 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] 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] Germany GERMANY Accretion of debt discount on convertible senior notes Amortization of Debt Discount (Premium) Treasury Stock Treasury Stock [Member] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Deferred tax liabilities, non-current Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Segments [Axis] Segments [Axis] Vested (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 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 (Note 5) Intangibles, net Intangible Assets, Net (Excluding Goodwill) Payments on conversion of convertible senior notes Proceeds from Convertible Debt 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 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 12) 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 (Note 8) Net carrying amount 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 assets (Note 10) Operating right of use assets Operating Lease, Right-of-Use Asset Sales commissions Accrued Sales Commission, Current Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] 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 Liability Component of Convertible Debt 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 2025 Lessee, Operating Lease, Liability, to be Paid, Year Four Schedule of Financial Assets and Liabilities Measured at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Unrecognized compensation cost related to novested share-based compensation arrangements Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Legal Matters Legal Matters and Contingencies [Text Block] Total deferred issuance costs Deferred Finance Costs, Liability And Equity Component Deferred Finance Costs, Liability And Equity Component Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Preferred stock, $0.001 par value - 5,000,000 shares authorized, none issued Preferred Stock, Value, Issued Total lease cost Lease, Cost Schedule of Carrying Amount of Equity Component of Convertible Debt Schedule of Carrying Amount of Equity Component of Convertible Debt [Table Text Block] Schedule of Carrying Amount of Equity Component of Convertible Debt Options exercisable at end of period (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 Incentive Stock Option Incentive Stock Option [Member] Incentive Stock Option [Member] Other United Kingdom, Germany, Japan, France, Italy [Member] United Kingdom, Germany, Japan, France, Italy [Member] Other liabilities Other Liabilities, Noncurrent Deferred tax assets Deferred Income Tax Assets, Net Repayment of debt acquired in acquisition Payments for (Proceeds from) Other Investing Activities Equity issued as payment for contingent consideration Payment For Contingent Consideration, Value, Equity Shares Issued Payment For Contingent Consideration, Value, Equity Shares Issued Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Principal payments for financing leases Financing cash flows for finance leases Finance Lease, Principal Payments Liability Class [Axis] Liability Class [Axis] Stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Contingent earn-out increase (decrease) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Effect of foreign exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Revenue Total revenue Revenue from Contract with Customer, Excluding Assessed Tax Measurement Frequency [Domain] Measurement Frequency [Domain] Issuance of 351,462 shares of common stock in connection with the ebot-7 transaction on July 14, 2021 (shares) Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued Business Acquisition [Axis] Business Acquisition [Axis] Geographical [Domain] Geographical [Domain] Options term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Statement [Line Items] Statement [Line Items] Stock Issued During Period, Shares, Acquisitions Stock Issued During Period, Shares, Acquisitions Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Gain on settlement of leases Gain on settlement of leases Gain (Loss) on Termination of Lease Long-term liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Acquisition related costs Business Combination, Acquisition Related Costs Statement [Table] Statement [Table] Deductions/write-offs Accounts Receivable, Allowance for Credit Loss, Writeoff Type of Restructuring [Domain] Type of Restructuring [Domain] LOC for Security Deposit Letter Of Credit For Security Deposit [Member] Letter Of Credit For Security Deposit [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Conversion option of the 2024 Notes Convertible Debt Securities [Member] Credit Facility [Axis] Credit Facility [Axis] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Contract Balances [Roll Forward] Contract Balances [Roll Forward] Contract Balances [Roll Forward] Israel ISRAEL Reconciliation of Shares Used in Calculating Basic and Diluted Earnings Per Share Schedule of Weighted Average Number of Shares [Table Text Block] Historical volatility, minimum (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Foreign Tax Authority Foreign Tax Authority [Member] Professional Services Professional Services [Member] Professional Services [Member] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Business Combinations [Abstract] Business Combinations [Abstract] Net loss per share, basic and diluted Earnings Per Share, Basic and Diluted Entity Small Business Entity Small Business Principles of Consolidation Consolidation, Policy [Policy Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Convertible Senior Notes and Capped Call Transactions Debt Disclosure [Text Block] Weighted average remaining contract term, Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Proceeds from issuance of common stock in connection with the exercise of options and ESPP Proceeds from Issuance of Common Stock Accrued sales tax, including interest Accrued Sales Tax Liability, Including Interest Accrued Sales Tax Liability, Including Interest Cost of revenue Cost of Revenue Goodwill [Roll Forward] Goodwill [Roll Forward] Property and Equipment, Net Property, Plant and Equipment, Net, by Type [Abstract] Amendment Flag Amendment Flag Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract] Option-Pricing Model Weighted Average Assumptions Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Shares of common stock available for issuance (up to) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Leases Lessee, Finance Leases [Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Corporate Corporate, Non-Segment [Member] Other Other Accrued Liabilities, Current Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Billing Status, Type [Axis] Billing Status, Type [Axis] Entity Central Index Key Entity Central Index Key Restructuring Restructuring and Related Activities Disclosure [Text Block] Match Step Two Matching Tranche Two [Member] Matching Tranche Two [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Contingent earn-out from acquisition e-bot7 acquisition (Note 9) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contingent Earn-Out From Acquisition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contingent Earn-Out From Acquisition United Kingdom UNITED KINGDOM Financial Instruments [Domain] Financial Instruments [Domain] Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Purchase of property and equipment recorded in accounts payable Capital Expenditures Incurred but Not yet Paid Geographical [Axis] Geographical [Axis] Subsequent Events Subsequent Events [Text Block] Decrease in valuation allowance charged to equity Valuation Allowance, Deferred Tax Asset, Decrease, Gross Valuation Allowance, Deferred Tax Asset, Decrease, Gross Segment [Domain] Segments [Domain] Common stock as earn-out payment in connection with AdvantageTec Inc. 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] 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, allowances including credit loss and sales reserve Accounts Receivable, Allowance for Credit Loss, Current Stock Issued During Period, Value, Acquisitions Stock Issued During Period, Value, Acquisitions Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Income Statement Location [Domain] Income Statement Location [Domain] 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two Other Commitments [Line Items] Other Commitments [Line Items] FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Abandonment of property and equipment Other Restructuring, Property And Equipment Abandonment [Member] Other Restructuring, Property And Equipment Abandonment [Member] Schedule of components of lease costs Lease, Cost [Table Text Block] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Description of Business and Basis of Presentation Business Description and Accounting Policies [Text Block] Other assets Other Assets, Noncurrent Threshold percentage of stock price if converted Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Segment Information Segment Reporting Disclosure [Text Block] Common stock issued upon vesting of restricted stock units (RSU) Stock Issued During Period, Value, New Issues Money market funds Cash and Cash Equivalents, Fair Value Disclosure Operating cash flows for finance leases Finance Lease, Interest Payment on Liability Total assets Assets Total interest expense Interest expense Interest Expense, Debt Title of 12(b) Security Title of 12(b) Security Schedule of Accrued Expenses and Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Total Finite-Lived Intangible Assets, Net Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Total long-lived assets Long-Lived Assets Depreciation expense Depreciation Depreciation, Nonproduction Aggregate Fair Value (In thousands) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value [Roll Forward] Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value [Roll Forward] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Cost of revenue Cost of Sales [Member] Technology Technology [Member] Technology [Member] Acquisitions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Other Other Intangible Assets [Member] Product and Service [Axis] Product and Service [Axis] Total liabilities Liabilities Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Weighted average recognition period of unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Punitive damages Loss Contingency, Damages Sought, Value Lease restructuring costs Other Restructuring [Member] 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] 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. (in shares) Stock Issued During Period, Shares, Earnout Payment Stock Issued During Period, Shares, Earnout Payment Accounts payable Increase (Decrease) in Accounts Payable Increase in valuation recorded Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Debt Instrument [Axis] Debt Instrument [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Operating Segments Operating Segments [Member] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Accrued expenses and other current liabilities Increase (Decrease) in Accrued Liabilities Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Awarded (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Defined Contribution Plan Match Groups [Domain] Defined Contribution Plan Match Groups [Domain] [Domain] for Defined Contribution Plan Match Groups [Axis] Other lease restructuring costs Other Restructuring. 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] Loss before provision for (benefit from) income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Product development Research and Development Expense Subsequent Event Subsequent Event [Member] Operating Leases Lessee, Operating Leases [Abstract] Lessee, Operating Leases 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 Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Payments for acquisition, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Common stock, authorized (in shares) Common Stock, Shares Authorized Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Property and equipment gross Property, Plant and Equipment, Gross Schedule of Revenue by Geographic Region Revenue from External Customers by Geographic Areas [Table Text Block] Summary of Financial Information by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Contractual interest expense Interest Expense, Debt, Excluding Amortization Income Statement [Abstract] Income Statement [Abstract] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Operating lease liability, net of current portion (Note 10) Operating Lease, Liability, Noncurrent 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 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 Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Shares reserved for future issuance Common Stock, Capital Shares Reserved for Future Issuance Number of leases abandoned Number Of Leases Abandoned Number Of Leases Abandoned Unbilled receivable Unbilled Revenues [Member] Thereafter Lessee, Operating Lease, Liability, Payments, Due After Year Four Lessee, Operating Lease, Liability, Payments, Due After Year Four Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Current liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Fair value of stock options exercised Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises in Period, Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises in Period, Fair Value Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Stock-based compensation expense Share-based Payment Arrangement, Noncash Expense Income tax benefit from settlement of uncertain tax benefits Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount Cover [Abstract] Cover [Abstract] Schedule of Restructuring and Related Costs Restructuring and Related Costs [Table Text Block] Goodwill, Acquired During Period Goodwill, Acquired During Period Employer matching contribution percent of eligible compensation Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay ebot-7 ebot-7 [Member] ebot-7 Remaining amortization period for debt discount and debt issuance costs Debt Instrument, Convertible, Remaining Discount Amortization Period Debt instrument, unit of principal for conversion Debt Instrument, Unit Of Principal For Conversion, Amount Debt Instrument, Unit Of Principal For Conversion, Amount Goodwill [Line Items] Goodwill [Line Items] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Deferred revenue Increase (Decrease) in Contract with Customer, Liability Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan Shares subject to outstanding common stock options and employee stock purchase plan Shares subject to outstanding common stock options and employee stock purchase plan [Member] Shares subject to outstanding common stock options and employee stock purchase plan Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Customer Relationships Customer Relationships [Member] Total costs and expenses Costs and Expenses Equity Components [Axis] Equity Components [Axis] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Minimum Minimum [Member] Assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Convertible Senior Notes Convertible Senior Notes [Member] Convertible Senior Notes [Member] Schedule of Allowance for Uncollectible Accounts Accounts Receivable, Allowance for Credit Loss [Table Text Block] Property and equipment, net (Note 6) Total Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Operating lease liability (Note 10) Operating Lease, Liability, Current Operating Lease, Liability, Current Unrecognized compensation cost related to nonvested share-based compensation arrangements Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Supplemental cash flow information related to leases Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Beginning balance outstanding (in shares) Non-vested and outstanding at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number Forfeited (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 Weighted Average Assumptions of Fair Value Options Using Black-Scholes Option-Pricing Model Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Employer matching contribution, percent of match Defined Contribution Plan, Employer Matching Contribution, Percent of Match Entity Interactive Data Current Entity Interactive Data Current United States UNITED STATES 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] OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Summary of Stock Option Activity and Weighted Average Exercise Prices Share-based Payment Arrangement, Option, Activity [Table Text Block] Capped caps initial cap price (in dollars per share) Capped Calls, Initial Cap Price Capped Calls, Initial Cap Price Remaining 2021 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Billed receivable Billed Revenues [Member] Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] 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] Assets: Assets, Fair Value Disclosure [Abstract] Operating leases, weighted average discount rate (percent) Operating Lease, Weighted Average Discount Rate, Percent 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] Non-cash restructuring costs Noncash Restructuring Costs Noncash Restructuring Costs Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Accounts receivable, net of allowances of $5,601 and $5,344 as of September 30, 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 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 Balance, beginning of the year Balance, end of period Restructuring liability Restructuring Reserve Adjustments to Additional Paid in Capital, Other Adjustments to Additional Paid in Capital, Other Tenfold [Member] Tenfold [Member] Tenfold Risk-free interest rate, minimum (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Cash awards 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 Foreign Currency Transactions and Translations Policy Foreign Currency Transactions and Translations Policy [Policy Text Block] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Trademarks Trademarks [Member] Weighted average number of shares outstanding, basic and diluted Weighted Average Number of Shares Outstanding, Basic and Diluted Restructuring Type [Axis] Restructuring Type [Axis] Cash payments Payments for Restructuring Goodwill (Note 5) Goodwill, beginning balance Goodwill, ending balance Goodwill Goodwill acquired Goodwill Document Transition Report Document Transition Report Contingent earn-out Business Combination, Contingent Consideration, Liability, Current Aggregate principal Debt Instrument, Face Amount 2024 Notes Convertible Senior Notes Due 2024 [Member] Convertible Senior Notes Due 2024 Level 2 Fair Value, Inputs, Level 2 [Member] Document Quarterly Report Document Quarterly Report Liabilities: Liabilities, Fair Value Disclosure [Abstract] Furniture, equipment and building improvements Furniture Equipment And Building Improvements [Member] Furniture, Equipment and Building Improvements [Member] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Cancelled or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Total assets Assets, Fair Value Disclosure General and administrative General and Administrative Expense [Member] EMEA EMEA [Member] Computer equipment and software Computer Equipment And Software [Member] Computer Equipment And Software [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Issuance costs Deferred Finance Costs, Allocated To Equity Component Deferred Finance Costs, Allocated To Equity Component Supplemental disclosure of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Deferred revenue (Note 2) Total deferred revenue - short term Deferred revenue (current), opening balance Deferred revenue (current), ending balance Contract with Customer, Liability, Current 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 [Axis] Cumulative Effect, Period of Adoption [Axis] Options vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Credit Facility [Domain] Credit Facility [Domain] Capped calls Capped Calls [Member] Capped Calls [Member] Business Business [Member] Business [Member]. Schedule of Finite-Lived Intangible Assets, Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Convertible debt conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Weighted average shares outstanding used in diluted net loss per common share calculation (in shares) Weighted Average Number of Shares Outstanding, Diluted Letter of Credit Letter of Credit [Member] Basic net loss per common share (in dollars per share) Earnings Per Share, Basic Expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Number of operating segments Number of Operating Segments Amortization of purchased intangibles Cost, Amortization Entity File Number Entity File Number Debt Disclosure [Abstract] Debt Disclosure [Abstract] Operating leases, weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Sales and marketing Sales and marketing Selling and Marketing Expense Number of shares per convertible note Debt Instrument, Convertible, Number of Equity Instruments Per 1000 Principal Debt Instrument, Convertible, Number of Equity Instruments Per 1000 Principal Expected to vest (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest, Weighted Average Grant Date Fair Value Supplemental balance sheet information related to leases Assets and Liabilities Lessee [Table Text Block] Assets and Liabilities Lessee Accrual for cash awards Share-Based Compensation, Accrual For Cash Awards Share-Based Compensation, Accrual For Cash Awards Issuance of shares of common stock to settle cash awards Other Significant Noncash Transaction, Value of Shares To Settle Bonus Cash Payment Other Significant Noncash Transaction, Value of Shares To Settle Bonus Cash Payment Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Litigation settlement, amount awarded from other party Litigation Settlement, Amount Awarded from Other Party Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Expected to vest (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Expected To Vest VoiceBase, Inc. VoiceBase, Inc. [Member] VoiceBase, Inc. Stock-based compensation expense Share-based Payment Arrangement, Expense Common stock issued under Employee Stock Purchase Plan Stock Issued During Period, Value, Employee Stock Purchase Plan Common stock, $0.001 par value - 200,000,000 shares authorized, 72,723,049 and 70,264,265 shares issued, 70,013,219 and 67,554,435 shares outstanding as of September 30, 2021 and December 31, 2020, respectively Common Stock, Value, Issued Deferred revenue (current), increase (decrease), net Contract With Customer Liability, Current, Period Increase (Decrease), Net Contract With Customer Liability, Current, Period Increase (Decrease), Net Contract acquisition costs Contract acquisition costs noncurrent, opening balance Contract acquisition costs noncurrent, ending balance Capitalized Contract Cost, Net, Noncurrent Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Document Fiscal Year Focus Document Fiscal Year Focus 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Aggregate intrinsic value, Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Entity Current Reporting Status Entity Current Reporting Status 2025 Finance Lease, Liability, to be Paid, Year Four Effective interest rate (percent) Debt Instrument, Interest Rate During Period Thereafter Finance ​Lease ​Liability ​Payment ​Due ​After ​Year Four Finance ​Lease ​Liability ​Payment ​Due ​After ​Year Four Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Awarded (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Convertible senior note Senior Debt Obligations [Member] 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 Issuance of 11,508 shares of common stock as earnout payment in connection with AdvantageTec Inc. (shares) Other Significant Noncash Transaction, Shares Issued As Earnout Payment Other Significant Noncash Transaction, Shares Issued As Earnout Payment Present value of lease liabilities Operating Lease, Liability Operating Lease, Liability Segment Reporting [Abstract] Segment Reporting [Abstract] Accounts receivable 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 Attributable to Parent Aggregate purchase price Business Combination, Consideration Transferred Total liabilities and stockholders’ equity Liabilities and Equity Accumulated other comprehensive (loss) 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 Payroll and other employee related costs Employee-related Liabilities, Current Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Payments for intangible assets Payments to Acquire Intangible Assets Restricted stock units RSUs Restricted Stock Units (RSUs) [Member] Compensatory damages Loss Contingency, Damages Awarded, Value Operating lease cost Operating Lease, Cost Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net General and administrative General and Administrative Expense Financial Instrument [Axis] Financial Instrument [Axis] Lease restructuring costs Other Restructuring Costs Anti-dilutive common stock awards not included in earnings per share calculation (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Finance leases, weighted average remaining lease term (in years) Finance Lease, Weighted Average Remaining Lease Term Useful life Finite-Lived Intangible Asset, Useful Life Equity Component [Domain] Equity Component [Domain] Hosted Services - Consumer Hosted Services - Consumer [Member] Hosted Services - Consumer [Member] Valuation allowance Deferred Tax Assets, Valuation Allowance Amortization of purchased intangibles and finance leases Amortization Of Intangible Assets And Finance Leases Amortization Of Intangible Assets And Finance Leases 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Entity Tax Identification Number Entity Tax Identification Number Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Interest expense, net Interest Income (Expense), Nonoperating, Net Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Stockholders' Equity Share-based Payment Arrangement [Text Block] Net loss Net loss Net loss (in thousands) Net Income (Loss) Attributable to Parent Finance lease liability Finance Lease, Liability, Noncurrent Receivables Billing Status [Domain] Receivables Billing Status [Domain] Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Proceeds allocated to the conversion options (debt discount) Carry amount of equity component of convertible notes Debt Instrument, Convertible, Carrying Amount of Equity Component Threshold for five day period, product of sale price of common stock and conversion rate of notes Debt Instrument, Convertible, Five Day Period, Threshold Of Product Of Sale Price Of Stock And Conversion Rate Debt Instrument, Convertible, Five Day Period, Threshold Of Product Of Sale Price Of Stock And Conversion Rate Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Leases [Abstract] Number of shares of common stock covered by called caps (shares) Number Of Shares Of Common Stock Covered By Capped Calls Number Of Shares Of Common Stock Covered By Capped Calls Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Total current assets Assets, Current Current Fiscal Year End Date Current Fiscal Year End Date Net loss per share of common stock: Earnings Per Share [Abstract] Restructuring costs Restructuring expense Restructuring Charges Compensation expense Compensation expense [Member] Compensation expense Present value of lease liability Finance Lease, Liability Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Adjustments to additional paid in capital related to issuance costs attributable to equity component Adjustments to Additional Paid in Capital, Debt Conversion Option, Issuance Costs Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing debt conversion option. Includes, but is not limited to, legal and accounting fees and other direct costs of issuance. Property and equipment and finance lease, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Schedule of Interest Expense Incurred Schedule of Interest Expense Incurred [Table Text Block] Schedule of Interest Expense Incurred Unallocated corporate expenses Segment Reporting Unallocated Corporate Expenses Segment Reporting Unallocated Corporate Expenses Right of use assets obtained in exchange for operating lease liabilities Operating Lease Right Of Use Asset Supplemental Cash Flow Operating Lease Right Of Use Asset Supplemental Cash Flow Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Reduction to additional paid-in-capital related to called caps Adjustments to Additional Paid in Capital, Capped Call Option, Issuance Costs Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing capped call options. Includes, but is not limited to, legal and accounting fees and direct costs associated with issuance. Document Fiscal Period Focus Document Fiscal Period Focus Estimated sales tax liability, including interest, maximum Estimated Sales Tax Liability, Including Interest, Maximum Estimated Sales Tax Liability, Including Interest, Maximum Less: accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Contract acquisition costs noncurrent Increase (Decrease) In Capitalized Contract Cost Increase (Decrease) In Capitalized Contract Costs Internal-use software development costs Software Development [Member] Deferred revenue, net of current portion (Note 2) Total deferred revenue - long term Deferred revenue (long-term), opening balance Deferred revenue (long-term), ending balance Contract with Customer, Liability, Noncurrent Employer matching contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Aggregate fair value, Non-vested and outstanding Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Nonvested And Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Aggregate Intrinsic Value, Nonvested And Outstanding Supplemental disclosure of other cash flow information: Supplemental Cash Flow Information [Abstract] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Percentage of principal amount paid if repurchase due to fundamental change (percent) Debt Instrument, Redemption Price, Percentage Common stock issued under Employee Stock Purchase Plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Entity Filer Category Entity Filer Category Common Stock Common Stock [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Product and Service [Domain] Product and Service [Domain] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Risk-free interest rate, maximum (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Conversable, Inc. and AdvntageTec Conversable Inc And AdvntageTec Inc [Member] Conversable Inc And AdvntageTec Inc [Member] Customer relationships Customer Contracts [Member] Convertible Debt Convertible Debt [Member] Finance leases, weighted average discount rate (percent) Finance Lease, Weighted Average Discount Rate, Percent Technology Technology-Based Intangible Assets [Member] Summary of Property and Equipment Property, Plant and Equipment [Table Text Block] Issuance of 11,508 shares of common stock as earn-out payment in connection with AdvantageTec Inc. Other Significant Noncash Transaction, Value of Shares Issued As Earnout Payment Other Significant Noncash Transaction, Value of Shares Issued As Earnout Payment Common stock issued upon vesting of restricted stock units (in shares) Stock Issued During Period, Shares, New Issues Gross Carrying Amount Finite-Lived Intangible Assets, Gross Debt instrument stated rate (percent) Debt Instrument, Interest Rate, Stated Percentage Allowance for credit losses Additions charged to costs and expenses Accounts Receivable, Credit Loss Expense (Reversal) Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures Aggregate intrinsic value, Options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Common stock issued upon exercise of stock options (in shares) 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 Operating lease liabilities Increase (Decrease) In Operating Lease Liability Increase (Decrease) In Operating Lease Liability Total other expense, net Nonoperating Income (Expense) Consumer Consumer [Member] Consumer [Member] Finance right of use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Schedule of Future Minimum Lease Payments Lessee, Operating Lease, Liability, Maturity [Table Text Block] Stock Option Share-based Payment Arrangement, Option [Member] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Other Americas Other Americas [Member] Other Americas [Member] Weighted average shares outstanding used in basic net loss per common share calculation (in shares) Weighted Average Number of Shares Outstanding, Basic Costs and expenses Costs and Expenses [Abstract] Issuance of 351,462 shares of common stock Other Significant Noncash Transaction, Value of Consideration Given Subsequent Events [Abstract] Subsequent Events [Abstract] Cancelled or expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Right of use assets write down Other Restructuring, Right Of Use Asset Write Down [Member] Other Restructuring, Right Of Use Asset Write Down [Member] Treasury stock (in shares) Treasury Stock, Common, Shares Prepaid expenses and other current assets Increase Decrease In Prepaid Expense And Other Current Assets Increase (Decrease) In Prepaid Expense And Other Current Assets Severance and other compensation associated costs Employee Severance [Member] Capped caps initial strike price (in dollars per share) Capped Calls, Initial Option Strike Price Capped Calls, Initial Option Strike Price 2026 Notes Convertible Senior Notes Due 2026 [Member] convertible senior notes due 2026 Re-measurement to fair value increase (decrease) Fair value adjustment Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Fair Value Adjustments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Fair Value Adjustments Revenue Recognition Revenue from Contract with Customer [Text Block] Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Historical volatility, maximum (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Additional paid-in capital Additional Paid in Capital 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Provision for (benefit from) income taxes Income Tax Expense (Benefit) Cash paid for income taxes Income Taxes Paid, Net Cash, cash equivalents, and restricted cash - beginning of year Cash, cash equivalents, and restricted cash - end of year Total cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Accrued expenses and other current liabilities (Note 7) Total Accrued Liabilities, Current Diluted net loss per common share (in dollars per share) Earnings Per Share, Diluted Finance lease liability Finance Lease, Liability, Current Local Phone Number Local Phone Number Cash payment in acquisition Payments to Acquire Businesses, Gross Total Americas Americas [Member] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Equity consideration in acquisition Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Schedule of Changes in Fair Value of Level 3 Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Change in Fair Value of Level 3 Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Net carrying amount Debt Instrument, Convertible, Carrying Amount Of Equity Component, Net Of Issuance Costs Debt Instrument, Convertible, Carrying Amount Of Equity Component, Net Of Issuance Costs Principal Long-term Debt, Gross Contingent earn-out Contingent Earn-Out [Member] Contingent Earn-Out [Member] Entity Address, Address Line One Entity Address, Address Line One Fair value of contingent earn-out recorded in other long-term liabilities Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration Other assets Increase (Decrease) in Other Operating Assets Entity Emerging Growth Company Entity Emerging Growth Company Common stock issued upon exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Potential earn-out consideration payments based on achieving targets Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Threshold consecutive trading days in analysis of conversion price Debt Instrument, Convertible, Threshold Consecutive Trading Days Deferred income taxes Deferred Income Tax Expense (Benefit) Amortization of purchased intangibles Amortization of Intangible Assets, Nonproduction Amortization of Intangible Assets, Nonproduction Taxes other than income tax Accrual for Taxes Other than Income Taxes Award Type [Axis] Award Type [Axis] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Maximum Maximum [Member] Amortization of debt issuance costs Amortization of Debt Issuance Costs Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Restricted cash in prepaid expenses and other current assets Restricted Cash Percentage of remaining performance obligations to be recognized over next 24 months Revenue, Remaining Performance Obligation, Percentage To Be Recognized In Next Two Years Revenue, Remaining Performance Obligation, Percentage To Be Recognized In Next Two Years Accumulated Deficit Retained Earnings [Member] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Income tax benefit recognized as result of CARES Act Income Tax Benefit, CARES Act Income Tax Benefit, CARES Act 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 used in investing activities Net Cash Provided by (Used in) Investing Activities Weighted Average Remaining Contractual Term (In years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Weighted average remaining contract term, Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Beginning balance Ending balance Accounts Receivable, Allowance for Credit Loss Award Type [Domain] Award Type [Domain] Award Type [Domain] Non-current liabilities: Liabilities, Noncurrent [Abstract] Carrying Amount of Liability Component: Long-term Debt, Unclassified [Abstract] Schedule of Restructuring Liability by Cost Type Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Trading Symbol Trading Symbol Options exercisable at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-average shares used to compute net loss per share: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Treasury stock - 2,709,830 shares Treasury Stock, Value Net Loss Per Share Earnings Per Share [Text Block] Finance Leases [Abstract] Finance Lease Liability [Abstract] Current liabilities: Liabilities, Current [Abstract] Entity Shell Company Entity Shell Company Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Recurring Fair Value, Recurring [Member] Options vested and expected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price 2023 Finance Lease, Liability, to be Paid, Year Two Income Tax Contingency [Table] Income Tax Contingency [Table] Recently Issued Accounting Standards and Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Schedule Of Receivables, Contract Acquisition Costs, And Deferred Revenue Schedule Of Receivables, Contract Acquisition Costs, And Deferred Revenue [Table Text Block] Schedule Of Receivables, Contract Acquisition Costs, And Deferred Revenue