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Time to MNPI Disclosures [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Scenario [Axis] Scenario [Axis] Document Type Document Type Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Other long-term assets, net Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Product and Service [Axis] Product and Service [Axis] Litigation loss recognized Litigation Settlement, Loss Revenue from contract with customer Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Acquisition of property and equipment Payments to Acquire Property, Plant, and Equipment General and administrative Disposal Group, Including 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period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Conditions, Achievement Period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Conditions, Achievement Period Other receivables Other Receivables, Net, Current Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Depreciation and amortization expense Disposal Group, Including Discontinued Operation, Depreciation and Amortization Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount ESPP, purchase price percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Disposal Group Name [Axis] Disposal Group Name [Axis] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Number of shares received upon sale of business (in shares) Disposal Group, Including Discontinued Operation, Consideration Received, Equity Interest, Number of Shares Disposal Group, Including Discontinued Operation, Consideration Received, Equity Interest, Number of Shares 2018 Line of Credit Line Of Credit 2018 [Member] Line Of Credit 2018 Accrued liabilities: Accrued Liabilities, Current [Abstract] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Current liabilities: Liabilities, Current [Abstract] Geographical [Axis] Geographical [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Line of Credit Long-term line of credit Long-Term Line of Credit Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Loss (gain) on divestiture Gain on divestiture Gain on divestiture Gain (Loss) on Disposition of Assets Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Other accrued expenses Increase (Decrease) in Accrued Liabilities Forecast Forecast [Member] Partner Share and other third-party costs Financial Institution Share And Other Third-Party Costs Financial Institution Share And Other Third-Party Costs Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accounts receivable and contract assets, net Accounts Receivable, after Allowance for Credit Loss, Current Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Other comprehensive (loss) income: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Sale of stock, number of shares (in shares) Sale of Stock, Number of Shares Issued in Transaction Net (loss) income per share, basic and diluted(1): Earnings Per Share [Abstract] Total other (expense) income Total other expense (income) Nonoperating Income (Expense) Number of tranches Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Number Of Tranches Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Number Of Tranches Schedule of antidilutive securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Other receivables Disposal Group, Including Discontinued Operation, Receivables, Other, Current Disposal Group, Including Discontinued Operation, Receivables, Other, Current Money market funds Money Market Funds, at Carrying Value Cash and Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Partner Share liability Financial Institution Share Liability, Current Financial Institution Share Liability, Current Award Timing Disclosures [Line Items] Current operating lease liabilities Disposal Group, Including Discontinued Operation, Operating Lease Liabilities, Current Disposal Group, Including Discontinued Operation, Operating Lease Liabilities, Current Current assets of discontinued operations Current assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets, Current Principal Long-Term Debt, Gross Accrued compensation Employee-related Liabilities, Current Litigation settlement, estimated amount recoverable from insurance Litigation Settlement, Estimated Amount Recoverable From Insurance Litigation Settlement, Estimated Amount Recoverable From Insurance Total lease assets Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Top Five Marketers Top Five Marketers [Member] Top Five Marketers Effective interest rate Debt Instrument, Interest Rate During Period Net loss Net loss Net Income (Loss) Net Income (Loss) Attributable to Parent Expiration Date Trading Arrangement Expiration Date Long-term liabilities: Liabilities, Noncurrent [Abstract] 2022 Inducement Plan Inducement Plan 2022 [Member] Inducement Plan 2022 Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Property and equipment, net Property and equipment Property, Plant and Equipment, Net Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable and contracts assets, net Increase (Decrease) in Accounts Receivable Entity Current Reporting Status Entity Current Reporting Status Customer [Axis] Customer [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Bridg Bridg [Member] Bridg Proceeds from issuance of 2024 Convertible Senior Notes Proceeds from Convertible Debt Operating loss Operating Income (Loss) Lines of credit Line of Credit [Member] Accrued compensation Disposal Group, Including Discontinued Operation, Accrued Compensation, Current Disposal Group, Including Discontinued Operation, Accrued Compensation, Current Accumulated deficit Retained Earnings (Accumulated Deficit) Supplier Concentration Risk Supplier Concentration Risk [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Event Type [Domain] Subsequent Event Type [Domain] Debt Conversion Terms Two Debt Conversion Terms Two [Member] Debt Conversion Terms Two Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Current liabilities of discontinued operations Current liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities, Current Weighted-Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-based payment arrangement, number of shares available (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Foreign currency gain (loss) Other Nonoperating Income (Expense) Adjustments to reconcile net loss to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Revenue Benchmark Revenue Benchmark [Member] Proceeds from sale of marketable securities, net Proceeds from Sale and Maturity of Marketable Securities OVERVIEW OF BUSINESS AND BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized LEASES Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Number of shares authorized, annual increase Share-based Compensation Arrangement by Share-based Payment Award, Number Of Shares Authorized, Annual Percentage Increase Share-based Compensation Arrangement by Share-based Payment Award, Number Of Shares Authorized, Annual Percentage Increase Share-based Payment Arrangement, Tranche Three Share-Based Payment Arrangement, Tranche Three [Member] Delivery Costs Delivery Costs [Member] Cost to deliver ad campaigns Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Weighted-average common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Consumer incentives, expense Consumer Incentives, Expense Consumer Incentives, Expense Disposal Group Classification [Domain] Disposal Group Classification [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Conversion Terms One Debt Conversion Terms One [Member] Debt Conversion Terms One Partner Share and other third-party costs Disposal Group, Including Discontinued Operation, Partner Share and Other Costs Disposal Group, Including Discontinued Operation, Partner Share and Other Costs Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of debt issuance costs Amortization of Debt Issuance Costs Entity Tax Identification Number Entity Tax Identification Number Scenario [Domain] Scenario [Domain] Costs and Expenses [Abstract] Costs and Expenses [Abstract] Operating lease right-of-use assets Disposal Group, Including Discontinued Operation, Operating Lease Right-of-Use Assets Disposal Group, Including Discontinued Operation, Operating Lease Right-of-Use Assets Repayment of line of credit, net Proceeds from (Repayments of) Lines of Credit Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Unvested, unamortized compensation costs Stock or Unit Option Plan Expense Common stock, shares issued (in shares) Common Stock, Shares, Issued Loss (gain) on divestiture Gain on sale of business Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax GOODWILL AND ACQUIRED INTANGIBLES Goodwill and Intangible Assets Disclosure [Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Interest expense Interest Expense, Nonoperating Schedule of Goodwill Schedule of Goodwill [Table Text Block] Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Long-term deferred revenue Disposal Group, Including Discontinued Operation, Deferred Revenue, Noncurrent Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Amounts accrued for capitalized software development costs Capital Expenditures Incurred but Not yet Paid Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Sales and marketing expense Disposal Group, Including Discontinued Operation, Sales and Marketing Expense Disposal Group, Including Discontinued Operation, Sales and Marketing Expense Consumer Incentive liability Customer Incentive Liability Customer Incentive Liability Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Delivery costs Delivery Costs Costs to deliver ad campaigns Consumer Incentive liability Increase (Decrease) In Consumer Incentive Liability Increase (Decrease) In Consumer Incentive Liability Long-Term Purchase Commitment, Payments Long-Term Purchase Commitment, Payments Long-Term Purchase Commitment, Payments Intangible assets, net Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Common Stock(1) Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation