Business Acquisition [Axis] Business Acquisition [Axis] Impact of the Coronavirus Aid, Relief, and Economic Security Act Effective Income Tax Rate Reconciliation, CARES Act, Amount Effective Income Tax Rate Reconciliation, CARES Act, Amount Charges to earnings Accounts Receivable, Credit Loss Expense (Reversal) Related Party Transactions [Abstract] Related Party Transactions [Abstract] Deferred income tax assets Deferred income tax assets Deferred Income Tax Assets, Net Non-cash compensation Non-Cash Compensation [Member] Non-Cash Compensation Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Deferred income tax provision (benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Preferred stock, outstanding shares Preferred Stock, Shares Outstanding Gain on investments Gain (Loss) on Investments Threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Debt Instrument [Axis] Debt Instrument [Axis] Total gross property and equipment Property, Plant and Equipment, Gross Number of defendants Loss Contingency, Number of Defendants Revenue Disposal Group, Including Discontinued Operation, Revenue Revolving credit facility, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Weighted Average Remaining Contractual Term Share Based Compensation Arrangement by Share Based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] -- None. No documentation exists for this element. -- Depreciation Depreciation Exercised (in shares) Exercises in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Net deferred tax assets Deferred Tax Assets, Net Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest rate Interest rate (percentage) Debt Instrument, Interest Rate, Stated Percentage CONTINGENCIES Legal Matters and Contingencies [Text Block] Additional paid-in capital Additional paid-in capital Additional Paid in Capital, Common Stock State Current State and Local Tax Expense (Benefit) Income tax payments Income Taxes Paid Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive securities excluded from calculation of diluted earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Maximum contribution by employees as a percentage of pre-tax earnings Defined Contribution Plan Employee Contribution Limit Percentage of Compensation The limit of annual employee contributions to the plan per calendar year as a percentage of compensation. Net cash (used in) provided by operating activities attributable to discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Equity Component [Domain] Equity Component [Domain] Hosting arrangement, amortization expense Hosting Arrangement, Service Contract, Implementation Cost, Expense, Amortization Additions based on tax positions of the current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Investment, Name [Domain] Investment, Name [Domain] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Proceeds used to settle outstanding balance of debt instrument Repayments of Convertible Debt, Including Interest Repayments of Convertible Debt, Including Interest Current lease liability, statement of financial position Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price 2020 Warrants 2020 Warrants [Member] 2020 Warrants [Member] Plan Name [Domain] Plan Name [Domain] Issuance of 0.50% Convertible Senior Notes, net Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Surety bond Surety Bond [Member] Line of credit outstanding Long-Term Line of Credit Common stock $.01 par value; 50,000,000 shares authorized; 16,167,184 and 16,070,720 shares issued, respectively, and 12,811,718 and 13,095,149 shares outstanding, respectively Common Stock, Value, Outstanding Entity Address, State or Province Entity Address, State or Province Employee Stock Purchase Plan Employee Stock [Member] Outstanding at the end of the period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Segment, Operating Activities [Domain] Operating Activities [Domain] Award Type [Axis] Award Type [Axis] Other Consumer Other Consumer [Member] Other Consumer [Member] Bad debt expense Other Noncash Expense Current lease liabilities Operating Lease, Liability, Current Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Costs and expenses: Costs and Expenses [Abstract] Performance awards earned (in shares) Performance Awards Earned Performance Awards Earned Long-term debt Long-term debt Net carrying amount Long-Term Debt, Excluding Current Maturities Total liabilities Liabilities Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term STOCK-BASED COMPENSATION Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Leasing Deferred Tax Assets, Operating Lease Deferred Tax Assets, Operating Lease Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Lending Tree Loans Lending Tree Loans [Member] Represents the information pertaining to LendingTree Loans. Debt issuance costs, liability component Debt issuance costs Debt issuance costs, liability component Debt issuance costs, liability component Percent of non-voting equity Line of Credit Facility, Collateral, Percent of Non-Voting Equity Line of Credit Facility, Collateral, Percent of Non-Voting Equity Revolving Credit Facility Revolving Credit Facility [Member] Current income tax expense (benefit): Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Return performance, percent of target stock price Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Target Number Of Shares Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Target Number Of Shares Document Type Document Type Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Software development costs, depreciation period Depreciation period (in years) Property, Plant and Equipment, Useful Life DEBT Long-Term Debt [Text Block] Schedule of funding commitments that could potentially require performance in the event of demands by third parties or contingent events Commitments Related to Performance on Demand [Table Text Block] Tabular disclosure of commitments that could potentially require performance in the event of demands by third parties or contingent events. Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Severance costs Severance Costs Nonvested at the beginning of the period (in dollars per share) Nonvested at the end of the 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 Discount rate (percentage) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount Rate Deferred income taxes Deferred income tax provision (benefit) Deferred Income Tax Expense (Benefit) Credit cards Credit Cards [Member] Credit Cards [Member] Performance measurement period one Share-Based Payment Arrangement, Tranche One [Member] Assets and Liabilities Held For Sale Assets And Liabilities Held-For-Sale, Policy [Policy Text Block] Assets And Liabilities Held-For-Sale, Policy Number of shares covered by the hedge transactions Number of Shares Covered by the Hedge Transactions Number of Shares Covered by the Hedge Transactions Accrued advertising expense Accrued Advertising, Current Accounts payable, trade Disposal Group, Including Discontinued Operation, Accounts Payable, Current Write-off of uncollectible accounts receivable Accounts Receivable, Allowance for Credit Loss, Writeoff Debt Disclosure [Abstract] Debt Disclosure [Abstract] Accounts Receivable Accounts Receivable [Policy Text Block] Income Statement Location [Axis] Income Statement Location [Axis] Accrued expenses and other current liabilities Total accrued expenses and other current liabilities Accrued Liabilities, Current Current portion of long-term debt Current portion of long-term debt Long-Term Debt, Current Maturities Net cash provided by (used in) financing activities attributable to continuing operations Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Interest expense Interest Expense, Debt Line of Credit Line of Credit [Member] Total deferred tax assets, net of the valuation allowance Gross Deferred Tax Assets, Net of Valuation Allowance Amount AFTER allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Schedule of reconciliation of the allowance for doubtful accounts Financing Receivable, Allowance for Credit Loss [Table Text Block] SHAREHOLDERS' EQUITY: Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Prepaid and other current assets Prepaid Expense and Other Assets, Current Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Major Customers [Axis] Customer [Axis] Summary of stock option valuation assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Accumulated amortization Disposal Group, Including Discontinued Operation, Finite-Lived Intangible Assets, Accumulated Amortization Disposal Group, Including Discontinued Operation, Finite-Lived Intangible Assets, Accumulated Amortization Schedule of components of the income tax expense (benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Weighted-average period for recognition of unrecognized compensation cost (in years) Weighted-average period for recognition of unrecognized compensation cost (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Options exercisable at the end of the period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Schedule of intangible assets with definite lives Schedule of Finite-Lived Intangible Assets [Table Text Block] Non-cash compensation due to accelerated vesting of equity awards Non-Cash Restructuring Reserve, Settled without Cash Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt, before Write off of Debt Issuance Cost Segment profit (loss) Gross Profit Entity Registrant Name Entity Registrant Name Repurchased face amount Debt Instrument, Repurchased Face Amount Weighted average price of shares purchased (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Per Share Weighted Average Price of Shares Purchased Dividend yield Expected dividend rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Operating lease right-of-use assets Disposal Group, Including Discontinued Operation, Operating Lease, Right-Of-Use Asset Disposal Group, Including Discontinued Operation, Operating Lease, Right-Of-Use Asset BENEFIT PLANS Retirement Benefits [Text Block] Performance Options Performance Options [Member] Performance Options Leases [Abstract] Leases [Abstract] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Minimum Minimum [Member] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Proceeds from term loan Proceeds from Issuance of Secured Debt Nondeductible executive compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Total net Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization Investment, Name [Axis] Investment, Name [Axis] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Trading Symbol Trading Symbol Entity File Number Entity File Number Statement, Operating Activities Segment [Axis] Operating Activities [Axis] 3-5 years Commitment Expiration Related to Performance and Completion of Contract Due within Three and Fifth Year Represents the amount of commitment expiration within the three and fifth year after the balance sheet date related to performance and completion of contracts. 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Income Statement and Statement of Comprehensive Income [Abstract] Income Statement and Statement of Comprehensive Income ResCap ResCap [Member] ResCap [Member] Title of Individual [Axis] Title of Individual [Axis] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Defined Contribution Plan [Table] Defined Contribution Plan [Table] Accounting Estimates Use of Estimates, Policy [Policy Text Block] BUSINESS ACQUISITIONS Business Combination Disclosure [Text Block] Other (expense) income, net: Other Nonoperating Income (Expense) [Abstract] Equity Method Investments and Joint Ventures [Abstract] Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Concentration risk Concentration Risk, Percentage Advertising and promotion expense Marketing and Advertising Expense Expected volatility, maximum (percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Revolving credit facility, debt issuance costs Debt Instrument, Fee Amount INCOME TAXES Income Tax Disclosure [Text Block] Grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Credit Facility [Domain] Credit Facility [Domain] Basic (in dollars per share) Earnings Per Share, Basic Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Vested fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Schedule of cash, cash equivalents, restricted cash and restricted cash equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Repayment of 0.625% Convertible Senior Notes Repayments of convertible debt Repayments of Convertible Debt Damages sought Loss Contingency, Damages Sought, Value Assets held for sale (Note 9) Accounts Receivable, Assets Held-For-Sale Accounts Receivable, Assets Held-For-Sale Entity Interactive Data Current Entity Interactive Data Current Prepaid and other current assets Prepaid Expenses and Other Current Assets [Member] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Changes in current assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Litigation Status [Domain] Litigation Status [Domain] Schedule of non-cash compensation expense related to equity awards Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Issuance of common stock for stock options, employee stock purchase plan, restricted stock awards and restricted stock units, net of withholding taxes Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Purchase of treasury stock Payments for Repurchase of Common Stock Income Taxes Income Tax, Policy [Policy Text Block] Renewal term Lessee, Operating Lease, Renewal Term Discontinued operations: Discontinued Operations and Disposal Groups [Abstract] Ovation Ovation [Member] Ovation Credit Services Loss contingency receivable Loss Contingency, Receivable, Current Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit) Proceeds from the issuance of $0.50% Convertible Senior Notes Proceeds from Convertible Debt Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Lehman Brothers Holdings Inc. v. LendingTree, LLC Lehman Brothers Holdings Inc. v. LendingTree, LLC [Member] Lehman Brothers Holdings Inc. v. LendingTree, LLC [Member] Options exercisable at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] One year from the grant date Tranche 2 [Member] Tranche 2 [Member] Document Fiscal Year Focus Document Fiscal Year Focus Residential Funding Co. v Home Loan Center Residential Funding Co. v Home Loan Center [Member] Residential Funding Co. v Home Loan Center [Member] Capitalized research and experimentation Deferred Tax Assets, in Process Research and Development Revolving credit facility, letter of credit participation fee percentage Line of Credit Facility, Letter of Credit Participation Fee Percentage Line of Credit Facility, Participation Fee Hosting Arrangement [Domain] Hosting Arrangement [Domain] Hosting Arrangement Current income tax expense (benefit) Current Income Tax Expense (Benefit) Discontinued operations Discontinued Operations [Member] Capital expenditures Payments to Acquire Productive Assets Litigation Status [Axis] Litigation Status [Axis] Non-cash compensation expense Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Covenant threshold Debt Instrument Covenant Borrowing Capacity Threshold Debt Instrument Covenant Borrowing Capacity Threshold Common stock, outstanding shares Beginning balance, common (in shares) Ending balance, common (in shares) Common Stock, Shares, Outstanding Goodwill Net Goodwill Net goodwill, beginning balance Net goodwill, ending balance Goodwill Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Income tax (expense) benefit Income tax expense (benefit) Income Tax Expense (Benefit) Less: valuation allowance Balance, beginning of the period Balance, end of the period Deferred Tax Assets, Valuation Allowance Deferred income tax liabilities Deferred income tax liabilities Deferred Income Tax Liabilities, Net Entity Public Float Entity Public Float Dividends Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Payments Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accumulated depreciation Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Software Development Costs Internal Use Software, Policy [Policy Text Block] Home Home Home Segment [Member] Home Segment [Member] Convertible debt, noncurrent Convertible Debt, Noncurrent Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Restructuring and severance Restructuring Charges [Member] Diluted (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Website content Media Content [Member] Other commitments Other Commitment Conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Litigation Settlements and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Purchase period Share-Based Compensation Arrangement By Share-based Payment Award, Purchase Period Share-Based Compensation Arrangement By Share-based Payment Award, Purchase Period Unused borrowing capacity fee Debt Instrument, Unused Borrowing Capacity, Fee Other income Other income Other Income Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period Cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period Total cash, cash equivalents, restricted cash and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Stash Financial, Inc. Stash Financial, Inc. [Member] Stash Financial, Inc. [Member] Proceeds from stock options exercised Proceeds from Stock Options Exercised Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Contract liability Contract with Customer, Liability, Current Schedule of the deferred tax valuation allowance reconciliation Summary of Valuation Allowance [Table Text Block] Income Statement Location [Domain] Income Statement Location [Domain] Brand and other marketing expense Other Selling and Marketing Expense Debt issuance costs, equity component Debt issuance costs, equity component Debt issuance costs, equity component Amendment Flag Amendment Flag Weighted Average Amortization Life Finite-Lived Intangible Asset, Useful Life Operating lease cost Operating Lease, Cost Net cash provided by operating activities attributable to continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Projects in progress Construction in Progress [Member] Deferred tax assets: Components of Deferred Tax Assets [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other non-current assets Other Assets, Noncurrent Damages Damages [Member] Damages [Member] Nondeductible meals & entertainment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Amount Goodwill and Indefinite-Lived Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Options exercisable at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Depreciation Depreciation Depreciation, Depletion and Amortization Purchase price of common stock, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Revolving credit facility, unused capacity, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Effect of dilutive share awards (in shares) Incremental Common Shares Attributable To Restricted Stock Units Incremental Common Shares Attributable To Restricted Stock Units Delayed Draw Term Loan Delayed Draw Term Loan [Member] Delayed Draw Term Loan Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Counterparty Name [Axis] Counterparty Name [Axis] Targeted total shareholder return performance percentage Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Target Total Shareholder Return Performance Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Target Total Shareholder Return Performance Six years from the grant date Tranche 7 [Member] Tranche 7 [Member] ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Operating cash flows from operating leases Operating Lease, Payments Stock Options Share-Based Payment Arrangement, Option [Member] Expected volatility rate (percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Matching contribution per participant dollar contributed Defined Contribution Plan Employer Matching Contribution Per Participant Dollar Contributed Represents maximum amount by the terms of the plan, that the employer may contribute for each dollar to a defined contribution plan. Accounts receivable, allowance Accounts Receivable, Allowance for Credit Loss, Current Common stock, authorized shares Common Stock, Shares Authorized Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Maximum Maximum [Member] Offering period Share-Based Compensation Arrangement By Share-based Payment Award, Consecutive Offering Period Share-Based Compensation Arrangement By Share-based Payment Award, Consecutive Offering Period Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Total cash (used in) provided by discontinued operations Net Cash Provided by (Used in) Discontinued Operations Intangible Assets Intangible Assets, Net (Excluding Goodwill) [Abstract] Business Acquisition [Line Items] Business Acquisition [Line Items] Changes in goodwill Goodwill, Other Increase (Decrease) Line of Credit Facility [Table] Line of Credit Facility [Table] Cost of Revenue Cost of Goods and Service [Policy Text Block] Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Ratio of debt to EBITDA Ratio of Debt to EBITDA Ratio of Debt to EBITDA Loss before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Income tax benefit related to non-cash compensation Share-Based Payment Arrangement, Expense, Tax Benefit Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Post-exercise holding requirement period (in years) Share-based Compensation Arrangements by Share-based Payment Award, Options, Post-Exercise Holding Requirement Share-based Compensation Arrangements by Share-based Payment Award, Options, Post-Exercise Holding Requirement Schedule of revenue and net loss of the discontinued operations Schedule of Disposal Groups Including Discontinued Operations, Income Statement [Table Text Block] Tabular disclosure of disposal groups, which may include the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations Schedule of reconciliation of beginning and ending amounts of unrecognized tax benefits, excluding interest and penalties Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of balance of intangible assets, net Schedule of Intangible Assets and Goodwill [Table Text Block] Segment cost of revenue and marketing expense Cost of Revenue and Marketing Expense Cost of Revenue and Marketing Expense Net deferred tax liabilities Deferred Tax Liabilities, Net Amount awarded to other party Litigation Settlement, Amount Awarded to Other Party Common Stock Repurchases Disclosure of Repurchase Agreements [Abstract] Income Tax Authority [Axis] Income Tax Authority [Axis] CASH AND RESTRICTED CASH Restricted Assets Disclosure [Text Block] Unamortized debt discount Debt Instrument, Unamortized Discount Threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Basic (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Basic (in shares) Weighted average basic common shares (in shares) Weighted Average Number of Shares Outstanding, Basic Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Carrying amount of debt, equity component Debt Instrument, Convertible, Carrying Amount of Equity Component Net repayment of revolving credit facility Proceeds from (Repayments of) Secured Debt Accrued expenses and other current liabilities Accrued Liabilities, Current [Abstract] Maximum number of shares for earned (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Shares To Be Earned Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Shares To Be Earned Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Preferred stock $.01 par value; 5,000,000 shares authorized; none issued or outstanding Preferred Stock, Value, Issued Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Schedule of debt Schedule of Debt [Table Text Block] General and administrative expense General and Administrative Expense [Member] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Pending Litigation Pending Litigation [Member] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Capacity available for general corporate purchases Line Of Credit Facility Capacity Available For General Corporate Purchases Line Of Credit Facility Capacity Available For General Corporate Purchases Restructuring and Related Activities [Abstract] STOCK-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Balance, beginning of the period Balance, end of the period Accounts Receivable, Allowance for Credit Loss Hosting Arrangement that is a Service Contract Hosting Arrangement, Service Contract, Policy [Policy Text Block] Hosting Arrangement, Service Contract, Policy Contribution to LendingTree Foundation Charitable Contribution Accrual, Current Charitable Contribution Accrual, Current Revolving credit facility, term Debt Instrument, Term Schedule of components of the deferred tax assets and deferred tax liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Goodwill [Roll Forward] Goodwill [Roll Forward] Extinguishment of debt Extinguishment of Debt, Amount Effect of stock options (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Nonconvertible debt borrowing rate at the date of issuance (percentage) Nonconvertible Debt Borrowing Rate at the Date of Issuance Nonconvertible Debt Borrowing Rate at the Date of Issuance Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Disposal Group Name [Domain] Disposal Group Name [Domain] Conversion option one Debt Instrument, Redemption, Period One [Member] Current Fiscal Year End Date Current Fiscal Year End Date Total assets held for sale Disposal Group, Including Discontinued Operation, Assets Intangible assets with definite lives Finite-Lived Intangible Assets [Line Items] Intangible assets, net Total intangible assets, net Intangible Assets, Net (Excluding Goodwill) Performance measurement period two Share-Based Payment Arrangement, Tranche Two [Member] Loss on impairments and disposal of assets Gain (Loss) on Disposition of Property Plant Equipment Non-cash compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Termination of convertible note hedge on the $0.625% Convertible Senior Notes Proceeds from hedge and warrant terminations Proceeds from Hedge, Financing Activities Concentration Risk Type [Axis] Concentration Risk Type [Axis] Total current liabilities Liabilities, Current Risk-free interest rate, minimum (percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Hosting Arrangement [Axis] Hosting Arrangement [Axis] Hosting Arrangement Customer concentration Customer Concentration Risk [Member] Revolving credit facility, letter of credit fronting fee percentage Line of Credit Facility, Letter of Credit Fronting Fee Percentage Line of Credit Facility, Letter of Credit Fronting Fee Percentage Components of the income tax provision (benefit) Income Tax Expense (Benefit), Continuing Operations [Abstract] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] ASSETS AND LIABILITIES HELD FOR SALE Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Aggregate Intrinsic Value Share Based Compensation Arrangement by Share Based Payment Award, Options, Aggregate Intrinsic Value [Abstract] -- None. No documentation exists for this element. -- Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Risk-free interest rate, maximum (percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Unrealized gain on equity method investment Equity Securities, FV-NI, Unrealized Gain (Loss) Revenue Revenue from Contract with Customer Benchmark [Member] Accounts receivable, net of allowance Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Income Tax Authority [Domain] Income Tax Authority [Domain] Cost of revenue (exclusive of depreciation and amortization shown separately below) Cost of Revenue Other financing activities Proceeds from (Payments for) Other Financing Activities Impairment charges related to trade names and trademarks Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) Charges to earnings Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Credit Facility [Axis] Credit Facility [Axis] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Entity Tax Identification Number Entity Tax Identification Number Number of shares authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Customer lists Customer Lists [Member] Interest adjustment due to ASU 2020-06 adoption Stockholders' Equity Attributable to Parent, Before Tax Stockholders' Equity Attributable to Parent, Before Tax Payment of convertible note hedge on the $0.50% Convertible Senior Notes Payment of convertible note hedge transactions Payments for Hedge, Financing Activities Total Amounts Committed Guarantor Obligations, Maximum Exposure, Undiscounted Schedule of reconciliation of total income tax expense (benefit) to amounts computed by applying statutory federal income tax rate to income (loss) from continuing operations before income taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Net increase in cash, cash equivalents, restricted cash and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect State income taxes, net Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Schedule of rollforward of accrued balance for restructuring activities Restructuring and Related Costs [Table Text Block] Hosting arrangement, amortization period Hosting Arrangement, Service Contract, Implementation Cost, Amortization Period Hosting Arrangement, Service Contract, Implementation Cost, Amortization Period Advertising and Promotional Expense Advertising And Promotional Cost [Policy Text Block] Advertising And Promotional Cost Entity Central Index Key Entity Central Index Key Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Amortization of intangible assets with definite lives computed on a straight-line basis Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Repayment of term loan Repayments of Secured Debt Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Certain Risks and Concentrations Concentration Risk, Credit Risk, Policy [Policy Text Block] Term of plan Share Based Compensation Arrangements by Share Based Payment Award, Options Expiration Term The period of time, from the grant date until the time at which the share-based [option] award expires. Entity [Domain] Entity [Domain] Unamortized capitalized software development costs Capitalized Computer Software, Net Reduction in carrying amount of ROU asset, offset by change in operating lease liabilities ROU asset amortization, offset by change in operating lease liabilities ROU asset amortization, offset by change in operating lease liabilities City Area Code City Area Code Accrued professional fees Accrued Professional Fees, Current ASSETS: Assets: Assets [Abstract] Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Charitable contribution Charitable Contribution Charitable Contribution COMMITMENTS Commitments Disclosure [Text Block] Less: Interest Lessee Operating Lease, Liability, Undiscounted Excess Amount, Interest Lessee Operating Lease, Liability, Undiscounted Excess Amount, Interest Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Schedule of capitalized implementation costs Deferred Costs, Capitalized, 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assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Aircraft and automobile Aircraft and automobile Automobiles [Member] ORGANIZATION Business Description and Basis of Presentation [Text Block] Number of loan originators Loss Contingency, Number Of Loan Originators Loss Contingency, Number Of Loan Originators Name of Major Customer [Domain] Customer [Domain] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Total lease payments Lessee, Operating Lease, Liability, to be Paid HOSTING ARRANGEMENTS Other Assets Disclosure, Hosting Arrangements [Text Block] Other Assets Disclosure, Hosting Arrangements Entity Address, Postal Zip Code Entity Address, Postal Zip Code Total cash provided by continuing operations Net Cash Provided by (Used in) Continuing Operations Reconciliation of unrecognized tax benefits, excluding interest Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Other Other Segments [Member] 2025 Notes Under 13-day Purchase Option 2025 Notes Under 13-day Purchase Option [Member] 2025 Notes Under 13-day Purchase Option [Member] Other Other Products And Services [Member] Other Products And Services [Member] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Accrued Balance, beginning of period Accrued Balance, end of period Restructuring Reserve Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) Cash flows from investing activities attributable to continuing operations: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Repurchase of 0.625% Convertible Senior Notes, net 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Agreement, Ratio of Debt to EBITDA Long-lived assets located outside the United States Long-Lived Assets Purchase of treasury stock Value of treasury stock acquired Treasury Stock, Value, Acquired, Cost Method Computer equipment and capitalized software Computer equipment and capitalized software Computer Equipment and Capitalized Software [Member] Represents the computer equipment and capitalized software held by the entity for its use in production of products and services in which the entity deals, and are subject to depreciation, depletion and amortization. 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EarnUp Inc. [Member] EarnUp Inc. Net proceeds from the convertible notes used to pay for the cost of the convertible note hedge Net proceeds from the Convertible Notes used to pay for the cost of the Convertible Note Hedge Net proceeds from the Convertible Notes used to pay for the cost of the Convertible Note Hedge New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Schedule of changes in outstanding non-vested RSUs, restricted stock and RSUs with performance conditions Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Percent of domestic subsidiaries equity Line of Credit Facility, Collateral, Percent of Domestic Subsidiaries Equity Line of Credit Facility, Collateral, Percent of Domestic Subsidiaries Equity Home Loan Center, Inc. Home Loan Center, Inc. [Member] Home Loan Center, Inc. [Member] Excess tax (benefit) expense Excess Tax Benefit on Stock Compensation, Income Tax Expense (Benefit) Excess Tax Benefit on Stock Compensation, Income Tax Expense (Benefit) Maximum contribution by employer (percentage) Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] QuoteWizard QuoteWizard [Member] QuoteWizard [Member] Document Annual Report Document Annual Report Recoveries collected Accounts Receivable, Allowance for Credit Loss, Recovery Legal Entity [Axis] Legal Entity [Axis] Technology Technology-Based Intangible Assets [Member] 2025 Convertible Notes 2025 Convertible Notes [Member] 2025 Convertible Notes [Member] Schedule of depreciation period for each asset category Property, Plant and Equipment [Table Text Block] Number of employees eliminated in workforce reduction Restructuring and Related Cost, Number of Positions Eliminated Preferred stock, issued shares Preferred Stock, Shares Issued Nonvested RSUs and RSAs, Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Non-current assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets, Noncurrent Restructuring Type [Axis] Restructuring Type [Axis] Cost of revenue Other Cost of Operating Revenue Segments [Axis] Segments [Axis] Product and Service [Domain] Product and Service [Domain] Cash flows from operating activities attributable to continuing operations: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Entity Shell Company Entity Shell Company Additions (subtractions) based on tax positions of the prior period Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Concentration Risk [Table] Concentration Risk [Table] 2023 Lessee, Operating Lease, Liability, to be Paid, Year One Document Period End Date Document Period End Date Total assets Assets Assets Service period one Service Period One [Member] Service Period One [Member] Net (loss) income per share: Earnings Per Share [Abstract] Weighted average assumptions Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] Customer deposits and escrows Customer Deposits and Escrows, Current Customer Deposits and Escrows, Current Performance Shares Performance Shares [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Insurance Insurance Insurance Segment [Member] Insurance Segment [Member] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Exercised (in dollars per share) 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Position [Abstract] Statement of Financial Position [Abstract] Requisite service period for matching contribution Defined Contribution Plan Requisite Service Period for Employer Matching Contribution The requisite service period for eligibility for matching contribution by the employer. 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SnapCap 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Three Accumulated Deficit Retained Earnings [Member] SEGMENT INFORMATION Segment Reporting Information [Line Items] Litigation settlements and contingencies Gain (Loss) Related to Litigation Settlement Total lease cost Lease, Cost Common Stock Common Stock [Member] Number of reportable segments Number of Reportable Segments Summary of lease costs Lease, Cost [Table Text Block] Number of shares available for issuance under the ESPP Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Contingent consideration liability Business Combination, Contingent Consideration, Liability (Decrease) increase in capital expenditures included in accounts payable and accrued expenses Increase (Decrease) in Capital Expenditures Incurred but Not yet Paid Increase (Decrease) in Capital Expenditures Incurred but Not yet Paid Revenue Recognition Revenue [Policy Text Block] Statement [Table] Statement [Table] Assets and liabilities classified as held for sale Disposal Groups, Including Discontinued Operations [Table Text Block] 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 Interest rate Debt Instrument, Interest Rate, Effective Percentage Realized gain from sale of equity method investment Equity Method Investment, Realized Gain (Loss) on Disposal Loan loss obligations Obligation to Repurchase Receivables Sold [Member] Letter of Credit Letter of Credit [Member] Equity investment Deferred Tax Liabilities, Investments Furniture and other equipment Furniture and other equipment Furniture and Fixtures [Member] Operating lease liabilities Operating Lease, Liability, Noncurrent Matching contribution made by the entity Defined Contribution Plan, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Purchase of 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Recent Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Conversion rate, number of shares per $1,000 of principal Debt Conversion, Number of Shares of Common Stock Convertible per $1,000 of Principal Notes Debt Conversion, Number of Shares of Common Stock Convertible per $1,000 of Principal Notes Prepaid and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Interest Deferred Tax Asset, Interest Deferred Tax Asset, Interest Provision for accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities State State and Local Jurisdiction [Member] Income tax benefit Discontinued Operation, Tax Effect of Discontinued Operation Adjustments to reconcile income from continuing operations to net cash provided by operating 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Internal Revenue Service (IRS) [Member] Lehman Brothers Holdings, Inc. 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non-cash compensation Share-Based Payment Arrangement, Expense Commitments and contingencies (Notes 17 and 18) Commitments and Contingencies Security Exchange Name Security Exchange Name Outstanding at the beginning of the period (in dollars per share) Outstanding at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Nonvested RSUs and RSAs, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Assets held for sale (Note 9) Disposal Group, Including Discontinued Operation, Assets, Current Letters of credit outstanding Letters of Credit Outstanding, Amount Repurchased amount, accrued interest Debt Instrument, Repurchased Amount, Accrued Interest Debt Instrument, Repurchased Amount, Accrued Interest Target number of shares (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Target Number Of Shares Share-Based Compensation Arrangement By Share-Based Payment Award, Target Number Of Shares Deferred Tax Assets, Valuation Allowance [Roll Forward] Deferred Tax Assets, Valuation Allowance [Roll Forward] Deferred Tax Assets, Valuation Allowance Contingent consideration payment, operating Payment for Contingent Consideration Liability, Operating Activities Common stock reserved for issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Payment of original issue discount on term loan Payments of Loan Costs Cover [Abstract] Entity Voluntary Filers Entity Voluntary Filers Targeted performance percentage Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Targeted Performance Achieved Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Targeted Performance Achieved Impairment losses during period related to goodwill Goodwill, Impairment Loss Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] DISCONTINUED OPERATIONS Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] REVENUE Revenue from Contract with Customer [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Consumer Consumer Consumer Segment [Member] Consumer Segment [Member] Percent of voting equity Line of Credit Facility, Collateral, Percent of Voting Equity Line of Credit Facility, Collateral, Percent of Voting Equity Conversion option two Debt Instrument, Redemption, Period Two [Member] Risk free rate (percentage) Risk-free interest rate (percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Total liabilities and shareholders' 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receivable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, Address Line One Entity Address, Address Line One Non-current assets of discontinued operations Deferred Tax Asset, Parent's Basis in Discontinued Operation Premium percentage period Debt Instrument Redemption Price Premium Percentage Period Debt Instrument Redemption Price Premium Percentage Period Product and Service [Axis] Product and Service [Axis] Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] Impairment loss on equity method investments Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount Interest expense, net Interest Expense Premium of warrant strike price over sales price of common stock (percentage) Premium of warrant strike price over sales price of common stock Premium of warrant strike price over sales price of common stock Convertible note hedge transactions Adjustments to Additional Paid in Capital, Entry into Convertible Note Hedge Transactions Adjustments to Additional Paid in Capital, Entry into Convertible Note Hedge Transactions Schedule of accrued expenses and other current liabilities Schedule of Accrued Liabilities [Table Text Block] Proceeds from the sale of warrants related to the $0.50% Convertible Senior Notes Proceeds from issuance of warrants Proceeds from Issuance of Warrants Other operating expenses Disposal Group, Including Discontinued Operation, Other Expense Accumulated depreciation Disposal Group, Including Discontinued Operation, Property, Plant And Equipment, Accumulated Depreciation Disposal Group, Including Discontinued Operation, Property, Plant And Equipment, Accumulated Depreciation Other non-current assets Other Noncurrent Assets [Member] Excess tax deductions on non-cash compensation Proceeds And Excess Tax Benefit From Share based Compensation, Federal Proceeds And Excess Tax Benefit From Share 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Accounting Standards Update [Extensible Enumeration] Accounting Standards Update [Extensible Enumeration] Accounting Standards Update 2020-06 [Member]