Discontinued Operations and Disposal Groups [Abstract]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Disposal Group Name [Domain]
Lending Tree Loans
Lending Tree Loans [Member]
Represents the information pertaining to LendingTree Loans.
DISCONTINUED OPERATIONS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of revenue and net income (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 the number of loans sold and the original issue balance
Schedule of the Number and Issue Balance of Loans Sold and Subsequent Settlements [Table Text Block]
Schedule of the Number and Issue Balance of Loans Sold and Subsequent Settlements [Table Text Block]
Schedule of activity related to loss reserves on previously sold loans
Schedule of Activity in Loss Reserves on Loans Sold [Table Text Block]
Tabular disclosure of activity related to loss reserves on previously sold loans.
DISCONTINUED OPERATIONS
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Disclosure of Compensation Related Costs, Share-based Payments [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]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Award Date [Axis]
Award Date [Axis]
Award Date [Domain]
Award Date [Domain]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Equity Award [Domain]
Performance Options [Member]
Performance Options [Member]
Performance Options
Performance Shares [Member]
Performance Shares [Member]
Employee stock options
Employee Stock Option [Member]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Maximum
Maximum [Member]
Minimum
Minimum [Member]
Vesting [Axis]
Vesting [Axis]
Vesting [Domain]
Vesting [Domain]
STOCK-BASED COMPENSATION
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target grant date value of performance based equity compensation
Target Grant Date Value of Performance Based Equity Compensation
Target Grant Date Value of Performance Based Equity Compensation
Percentage, Target grant date value of performance based equity compensation, Restricted stock awards
Percentage, Target Grant Date Value of Performance Based Equity Compensation, Restricted Stock Awards
Percentage, Target Grant Date Value of Performance Based Equity Compensation, Restricted Stock Awards
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Percentage, Target grant date value of performance based equity compensation, Nonqualified stock options
Percentage, Target Grant Date Value of Performance Based Equity Compensation, Nonqualified Stock Options
Percentage, Target Grant Date Value of Performance Based Equity Compensation, Nonqualified Stock Options
Maximum potential future issuance of performance based equity compensation, Nonqualified stock options
Maximum Potential Future Issuance of Performance Stock Options
Maximum Potential Future Issuance of Performance Stock Options
Targeted total shareholder return performance, Nonqualified stock options
Targeted Total Shareholder Return Performance, Nonqualified Stock Options
Targeted Total Shareholder Return Performance, Nonqualified Stock Options
Total non-cash compensation
Allocated Share-based Compensation Expense
Annaul grant limit per employee, Shares
Annaul Grant Limit Per Employee, Shares
Annaul Grant Limit Per Employee, Shares
Future issuance of performance based equity compensation, Nonqualified stock options, Target
Future Issuance of Performance-based Nonqualified Stock Options, Target
Future Issuance of Performance-based Nonqualified Stock Options, Target
Stock options, Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at the beginning of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Outstanding at the end of the period (in shares)
Options exercisable at the end of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Stock options, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at the beginning of the period (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Expired (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Outstanding at the end of the period (in dollars per share)
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
Stock options, 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. --
Outstanding at the end of the period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Options exercisable at the end of the period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Stock options, Aggregate Intrinsic Value
Share Based Compensation Arrangement by Share Based Payment Award, Options, Aggregate Intrinsic Value [Abstract]
-- None. No documentation exists for this element. --
Outstanding at the end of the period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Options exercisable at the end of the period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Stock options, Grant Date Fair Value Valuation
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Grant date fair value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Expected term
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Simplified Method
Expected dividends
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Payments
Expected dividend rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Expected volatility, minimum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum
Expected volatility, maximum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum
Risk-free interest rate, minimum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum
Risk-free interest rate, maximum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum
Share price
Share Price
Business Combinations [Abstract]
Schedule of purchase price allocation
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of the fair value of definite lived intangible assets acquired
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]
Unaudited pro forma revenue and net income from continuing operations of business acquisitions
Business Acquisition, Pro Forma Information [Table Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION
Business Description and Basis of Presentation [Text Block]
Segment Reporting [Abstract]
SEGMENT INFORMATION
Segment Reporting Disclosure [Text Block]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Discover
Discover Bank [Member]
Represents Discover Bank, a wholly owned subsidiary of Discover Financial Services.
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Asset purchase agreement proceeds from sale
Asset Purchase Agreement Proceeds From Sale
Represents the proceeds for sale of the assets under the purchase agreement entered into by the reporting entity.
Settlement value of indemnification claim and other miscellaneous items
Loss Contingency, Settlement Value
Represents the amount of payment made by the entity towards the settlement with the buyers of previously purchased loans.
Revenue and net income (loss) of discontinued operations
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue
Disposal Group, Including Discontinued Operation, Revenue
Loss before income taxes
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Income tax benefit
Discontinued Operation, Tax Effect of Discontinued Operation
Loss from discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Assets and liabilities of facilities reported as discontinued operations
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Non-current assets of discontinued operations
Disposal Group, Including Discontinued Operation, Assets, Noncurrent
Current liabilities
Disposal Group, Including Discontinued Operation, Liabilities, Current
Cash and Cash Equivalents [Abstract]
RESTRICTED CASH
Restricted Assets Disclosure [Text Block]
Schedule of Restricted Cash and Cash Equivalents
Restrictions on Cash and Cash Equivalents [Table Text Block]
Income Tax Disclosure [Abstract]
INCOME TAXES
Income Tax Disclosure [Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Technology
Developed Technology Rights [Member]
Customer lists
Customer Lists [Member]
Trade name and trademarks
Trademarks and Trade Names [Member]
Tenant leases
Leases, Acquired-in-Place [Member]
Website content
Media Content [Member]
Other
Other Intangible Assets [Member]
Intangible assets with definite lives
Finite-Lived Intangible Assets [Line Items]
Cost
Finite-Lived Intangible Assets, Gross
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Total intangible assets with definite lives, net
Finite-Lived Intangible Assets, Net
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Cost of revenue
Cost of Sales [Member]
Selling and marketing expense
Selling and Marketing Expense [Member]
General and administrative expense
General and Administrative Expense [Member]
Product development
Research and Development Expense [Member]
Non-cash compensation expense related to equity awards
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Earnings Per Share [Abstract]
Schedule of weighted average basic and diluted common shares
Schedule of Weighted Average Number of Shares [Table Text Block]
RSUs
Restricted Stock Units (RSUs) [Member]
Restricted stock
Restricted Stock [Member]
Nonvested RSUs, Restricted Stock and Restricted Stock Units with Performance Conditions, Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested at the beginning of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Nonvested at the end of the period (in shares)
Nonvested RSUs, Restricted Stock and Restricted Stock Units with Performance Conditions, Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Nonvested at the beginning 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
Granted (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
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
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
Nonvested at the end of the period (in dollars per share)
Schedule of non-cash compensation expense related to equity awards
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Summary of changes in outstanding stock options
Share-based Compensation, Stock Options, Activity [Table Text Block]
Schedule of stock option valuation assumptions
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of changes in outstanding non-vested RSUs and restricted stock
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Schedule of changes in outstanding nonvested RSUs with performance conditions
Schedule of Nonvested Performance-based Units Activity [Table Text Block]
Schedule of changes in outstanding stock options with market conditions
Schedule of Nonvested Performance Based Stock Options [Table Text Block]
Schedule of Nonvested Performance Based Stock Options [Table Text Block]
Aggregate stock options
Stock Compensation Plan [Member]
Director stock options
Director Stock Option [Member]
An arrangement whereby a director of the board is entitled to receive, in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Although there are variations, normally, after vesting, when an option is exercised, the director-holder pays the strike value in cash to the issuing employer-entity and receives equity shares. The equity shares can be sold into the market for cash at the current market price without restriction. Options may be used to attract, retain and incentivize directors, in addition to their regular salary and other benefits.
Grant date fair value
Vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Vested (in shares)
Schedule of income tax (expense) benefit
Schedule of income tax provision benefit [Table Text Block]
[Table Text Block] for Schedule of income tax provision benefit [Table]
Reconciliation of income tax (expense) benefit
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES
Significant Accounting Policies [Text Block]
Fair Value Disclosures [Abstract]
Schedule of changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Excess tax benefits recognized in income tax expense
Proceeds and Excess Tax Benefit from Share-based Compensation
Prior period cash flow presentation for excess tax benefits
New Accounting Pronouncement or Change in Accounting Principle, Retrospective Adjustment to Cash Flow Presentation
Retrospective adoption for the change in presentation in the statement of cash flows for excess tax benefits from a financing activity to an operating activity.
Cumulative-effect adjustment to retained earnings for the recognition of forfeitures of stock awards
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Asset Class [Axis]
Asset Class [Axis]
Asset Class [Domain]
Asset Class [Domain]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Domain]
Other Comprehensive Income Location [Domain]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Annual interest rate on convertible senior notes
Debt Instrument, Interest Rate, Effective Percentage
Contingent consideration
Business Combination, Contingent Consideration, Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at December 31, 2016
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Change in fair value of contingent consideration
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Contingent consideration additions
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements)
Contingent consideration payments
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Balance at September 30, 2017
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
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 (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Calculation of weighted average common shares
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average common shares, basic
Weighted Average Number of Shares Outstanding, Basic
Effect of dilutive securities
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Effect of stock options (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Effect of dilutive share awards (in shares)
IncrementalCommonSharesAttributableToRestrictedStockUnits
IncrementalCommonSharesAttributableToRestrictedStockUnits
Effect of Convertible Senior Notes (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants
Weighted average common shares, diluted
Weighted Average Number of Shares Outstanding, Diluted
Common stock repurchases
Disclosure of Repurchase Agreements [Abstract]
Value of common stock authorized to be repurchased
Stock Repurchase Program, Authorized Amount
Purchase of treasury stock (in shares)
Treasury Stock, Shares, Acquired
Remaining authorized repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
GOODWILL AND INTANGIBLE ASSETS
Goodwill and Intangible Assets Disclosure [Text Block]
BUSINESS ACQUISITION
Business Combination Disclosure [Text Block]
Income tax expense
Income Tax Expense (Benefit)
Effective tax rates (as a percent)
Effective Income Tax Rate Reconciliation, Percent
Federal statutory income tax rate (as a percentage)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Income tax expense - excluding excess tax benefit on stock compensation
Income Tax Expense Excluding Excess Tax Benefit on Stock Compensation
Income Tax Expense Excluding Excess Tax Benefit on Stock Compensation
Commitments and Contingencies Disclosure [Abstract]
Loss Contingencies [Table]
Loss Contingencies [Table]
Discontinued Operations, Disposed of by Sale [Member]
Discontinued Operations, Disposed of by Sale [Member]
Litigation Status [Axis]
Litigation Status [Axis]
Litigation Status [Domain]
Litigation Status [Domain]
Pending litigation or appeal
Pending Litigation [Member]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case [Domain]
Residential Funding Company
Residential Funding Company [Domain]
Residential Funding Company [Domain]
Lending Tree v. Zillow, Inc.
Lending Tree v. Zillow, Inc. [Member]
Lending Tree v. Zillow, Inc. [Member]
Massachusetts Division of Banks
Massachusetts Division of Banks [Member]
Massachusetts Division of Banks
Lehman Brothers Holdings, Inc. Demand Letter
Lehman Brothers Holdings, Inc. Demand Letter [Member]
Lehman Brothers Holdings, Inc. Demand Letter [Member]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Unfavorable regulatory action
Unfavorable Regulatory Action [Member]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event [Member]
Subsequent Event [Member]
Contingencies
Loss Contingencies [Line Items]
Accrued litigation liability
Estimated Litigation Liability
Number of patents found not infringed upon
Loss Contingency, Number of Patents Found Not Infringed Upon
Loss Contingency, Number of Patents Found Not Infringed Upon
Settlement amount
Litigation Settlement, Amount Awarded to Other Party
Number of patents alleged infringement upon, maximum
Number of Patents Alleged Infringed Upon, Maximum
Number of Patents Alleged Infringed Upon, Maximum
Number of Joining Regulators
Number of Joining Regulators
This element represents the number of state mortgage regulation divisions that agree to not pursue litigation as part of an agreement for the company to sign a Consent Agreement and Order.
Estimated range of remaining possible losses due to loan losses
Loss Contingency, Estimate of Possible Loss
Amortization of intangible assets with definite lives computed on a straight-line basis
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of current year
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
2018
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Payables and Accruals [Abstract]
Schedule of accrued expenses and other current liabilities
Schedule of Accrued Liabilities [Table Text Block]
CONTINGENCIES
Legal Matters and Contingencies [Text Block]
STOCK-BASED COMPENSATION
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Schedule of goodwill
Schedule of Goodwill [Table Text Block]
Schedule of balance of intangible assets, net
Schedule of Intangible Assets and Goodwill [Table Text Block]
Schedule of intangible assets with definite lives
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Schedule of amortization of intangible assets with definite lives for the next five years
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Accounting Estimates
Use of Estimates, Policy [Policy Text Block]
Certain Risks and Concentrations
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Litigation Settlements and Contingencies
Legal Costs, Policy [Policy Text Block]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Statement [Line Items]
Statement [Line Items]
Revenue
Revenues
Costs and expenses:
Costs and Expenses [Abstract]
Cost of revenue (exclusive of depreciation and amortization shown separately below)
Cost of Revenue
Selling and marketing expense
Selling and Marketing Expense
General and administrative expense
General and Administrative Expense
Product development
Research and Development Expense
Depreciation
Depreciation, Depletion and Amortization
Amortization of intangibles
Amortization of Intangible Assets
Severance
Severance Costs
Litigation settlements and contingencies
Litigation Settlement, Expense
Total costs and expenses
Costs and Expenses
Operating income
Operating Income (Loss)
Other income (expense):
Other Nonoperating Income (Expense) [Abstract]
Interest expense, net
Interest Income (Expense), Net
Other (expense) income
Other Nonoperating Income (Expense)
Income before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Net income from continuing operations
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Loss from discontinued operations, net of tax
Net income and comprehensive income
Net Income (Loss) Available to Common Stockholders, Basic
Weighted average shares outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic
Diluted
Income per share from continuing operations:
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)
Income (Loss) from Continuing Operations, Per Basic Share
Diluted (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Loss per share from discontinued operations:
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share [Abstract]
Basic (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Diluted (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Income per share attributable to common shareholders:
Basic (in dollars per share)
Earnings Per Share, Basic
Diluted (in dollars per share)
Earnings Per Share, Diluted
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Convertible Notes Payable [Member]
Convertible Notes Payable [Member]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Aggregate principal amount of convertible senior notes
Convertible Debt
Principal amount of convertible senior notes exercised to cover the over-allotment
Principal amount of convertible senior notes exercised to cover the over-allotment
Principal amount of convertible senior notes exercised to cover the over-allotment
Initial conversion rate, shares per $1,000 principal amount of notes
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
Principal amount of notes convertible into shares
Convertible Preferred Stock, Terms of Conversion
Initial conversion price per share
Debt Instrument, Convertible, Conversion Price
Conversion rate, sales price of common stock as a percentage of the conversion price
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger
Cash repurchase at a price equal to the principal amount of the notes, Percentage
Debt Instrument, Redemption Price, Percentage
Nonconvertible debt borrowing rate at the date of issuance
Nonconvertible Debt Borrowing Rate at the Date of Issuance
Nonconvertible Debt Borrowing Rate at the Date of Issuance
Debt component of the principal amount of the Convertible Senior Notes
Convertible Debt, Noncurrent
Equity component of the principal amount of the Convertible Senior Notes
Debt Instrument, Convertible, Carrying Amount of Equity Component
Total interest expense on the Convertible Senior Notes
Interest Expense, Debt
Interest expense recognized associated with the 06.25% coupon rate
Interest Expense, Debt, Excluding Amortization
Amortization of convertible debt discount
Amortization of Debt Discount (Premium)
Amortization of debt issuance costs
Amortization of Debt Issuance Costs
Financing costs related to the issuance of the Convertible Senior Notes
Debt Issuance Costs, Gross
Debt issuance costs, liability component
Debt issuance costs, liability component
Debt issuance costs, liability component
Long-term debt
Long-term Debt, Excluding Current Maturities
Debt issuance costs, equity component
Debt issuance costs, equity component
Debt issuance costs, equity component
Fair value of the Convertible Senior Notes using a Level 1 observable input
Long-term Debt, Fair Value
Unamortized debt discount
Debt Instrument, Unamortized Discount
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Mortgage Products [Member]
Mortgage Products [Member]
Mortgage Products [Member]
Non-mortgage Products [Member]
Non-mortgage Products [Member]
Non-mortgage Products [Member]
Segment Information
Segment Reporting Information [Line Items]
Schedule of mortgage and non-mortgage product revenue
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Investor [Axis]
Investor [Axis]
Information by investor
Investor [Domain]
Investor [Domain]
[Domain] for Information by investor
Investor One [Member]
Investor One [Member]
Investor One [Member]
Investor Two [Member]
Investor Two [Member]
Investor Two [Member]
Restricted Cash and Cash Equivalents [Axis]
Restricted Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
Discover Bank
Loan loss obligations
Obligation to Repurchase Receivables Sold [Member]
Statement, Operating Activities Segment [Axis]
Operating Activities [Axis]
Segment, Operating Activities [Domain]
Operating Activities [Domain]
Discontinued operations
Discontinued Operations [Member]
Period of Loan Sales [Axis]
Period of Loan Sales [Axis]
Information related to loan sales, by period.
Period of Loan Sales [Domain]
Period of Loan Sales [Domain]
Details pertaining to loan sales, by period.
Loan Loss Obligations
Restricted cash and cash equivalents
Restricted Cash and Cash Equivalents, Current
Increase (Decrease) in Restricted Cash
Increase (Decrease) in Restricted Cash
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and Cash Equivalents, Period Increase (Decrease)
Original number of loans sold by HLC
Loss Contingencies, Number of Loans Sold
Represents the number of loans sold by HLC
Original principal balance of loans sold by HLC
Loss Contingencies, Original Principal Balance
Represents the original principal balance of loans sold by the entity.
Subsequent settlements of loans sold by HLC, number
Loss Contingencies, Number of Loans Subsequently Settled
Loss Contingencies, Number of Loans Subsequently Settled
Subsequent settlement of loans sold by HLC, original issue balance
Loss Contingencies,Value of Loans Subsequently Settled
Loss Contingencies,Value of Loans Subsequently Settled
Remaining number of unsettled loans
Loss Contingencies, Number of Unsettled Loans Remaining
Represents the number of unsettled loans remaining.
Remaining unsettled loans, original issue balance
Loss Contingencies, Remaining Unsettled Loans
Represents the original issue balance remaining on unsettled loans.
Number of loans sold to one investor
Loss Contingencies, Number of Loans Sold to one investor
Loss Contingencies, Number of Loans Sold to one investor
Percentage of the original loan issue balance
Loss Contingencies, Percentage of the Original Loan Issue Balance
Loss Contingencies, Percentage of the Original Loan Issue Balance
Number of buyers of Previously purchased limited documentation loans with settlements
Loss Contingencies, Settlement, Number of Buyers of Previously Purchased Limited Documentation Loans
Represents the number of buyers of previously purchased limited documentation loans with whom settlement negotiations are entered by the entity.
Loan loss reserve, at carrying value
Loss Contingency Accrual
Number of investors to whom loans are guaranteed
Guarantee Obligations, Number of Investors to whom Loans Guaranteed
Represents the number of investors to whom loans are guaranteed by the entity.
Activity related to loss reserves on previously sold loans
Loss Contingency Accrual [Roll Forward]
Loan loss reserve, beginning of period
Provisions
Loss Contingency Accrual, Provision
Charge-offs to reserves
Loss Contingency, Accrual Carrying Value, Charge Offs
The charge-offs made in the period which reduced loss contingency liabilities.
Loan loss reserve, end of period
DEBT
Debt Disclosure [Text Block]
Summary of the gross carrying amount, unamortized debt cost and net carrying value of the liability component of the Notes
Convertible Debt [Table Text Block]
Restrictions on Cash and Cash Equivalents [Table]
Restrictions on Cash and Cash Equivalents [Table]
Cash in escrow for sale of LendingTree Loans
Escrow Deposit for Sale of LTL [Member]
Represents the restricted cash in escrow deposit for sale of LTL.
Other Restricted Cash and Cash Equivalents
Other Restricted Cash and Cash Equivalents [Member]
Represents the restricted cash and cash equivalent that are not separately disclosed elsewhere in the taxonomy.
Restricted Cash and Cash Equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Decrease in restricted cash
Statement of Financial Position [Abstract]
Accounts receivable, allowance (in dollars)
Allowance for Doubtful Accounts Receivable, Current
Accumulated depreciation of property and equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, authorized shares
Preferred Stock, Shares Authorized
Preferred stock, issued shares
Preferred Stock, Shares Issued
Preferred stock, outstanding shares
Preferred Stock, Shares Outstanding
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, authorized shares
Common Stock, Shares Authorized
Common stock, issued shares
Common Stock, Shares, Issued
Common stock, outstanding shares
Common Stock, Shares, Outstanding
Treasury stock, shares
Treasury Stock, Shares
FAIR VALUE MEASUREMENTS
Fair Value Disclosures [Text Block]
Document and Entity Information
-- None. No documentation exists for this element. --
Entities [Table]
Entities [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Entity Information:
Entity Information [Line Items]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
Amendment Flag
Amendment Flag
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Current Reporting Status
Entity Current Reporting Status
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Federal Funds Effective Swap Rate [Member]
Federal Funds Effective Swap Rate [Member]
London Interbank Offered Rate (LIBOR) [Member]
London Interbank Offered Rate (LIBOR) [Member]
Base Rate [Member]
Base Rate [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Finance all or a portion of the purchase price of certain real estate
Finance all or a portion of the purchase price of certain real estate [Member]
Finance all or a portion of the purchase price of certain real estate [Member]
Finance post-acquisition improvements to such real estate, related equipment and related hedging obligations
Finance post-acquisition improvements to such real estate, related equipment and related hedging obligations [Member]
Finance post-acquisition improvements to such real estate, related equipment and related hedging obligations [Member]
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Swingline Facility [Member]
Swingline Facility [Member]
Swingline Facility [Member]
Letters of Credit [Member]
Letters of Credit [Member]
Letters of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Revolving Credit Facility, current borrowing capacity
Line of Credit Facility, Current Borrowing Capacity
Revolving Credit Facility, term
Debt Instrument, Term
Revolving Credit Facility, conditional increase to borrowing capacity
Line of Credit Facility, Conditional Increase to Borrowing Capacity
Line of Credit Facility, Conditional Increase to Borrowing Capacity
Revolving Credit Facility, basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Debt Instrument, Restrictive Covenants
Debt Instrument, Restrictive Covenants
Revolving Credit Facility, collateral, percent of assets
Line of Credit Facility, Collateral, Percent of Assets
Line of Credit Facility, Collateral, Percent of Assets
Revolving Credit Facility, collateral, percent of equity
Line of Credit Facility, Collateral, Percent of Equity
Line of Credit Facility, Collateral, Percent of Equity
Revolving Credit Facility, unused capacity, commitment fee percentage
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
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
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
Fees and expense paid to lenders at closing
Debt Instrument, Fee Amount
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Contingent Consideration by Type [Axis]
Contingent Consideration by Type [Axis]
Contingent Consideration Type [Domain]
Contingent Consideration Type [Domain]
Contingent earnout
Earnout Payment for One Contingent Earnout [Member]
Earnout Payment for One Contingent Earnout [Member]
Technology
Technology-Based Intangible Assets [Member]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
MagnifyMoney
MagnifyMoney [Member]
MagnifyMoney [Member]
CompareCards
CompareCards [Member]
CompareCards [Member]
DepositAccounts
DepositAccounts [Member]
DepositAccounts [Member]
Iron Horse Holdings, LLC [Member]
Iron Horse Holdings, LLC [Member]
Iron Horse Holdings, LLC [Member]
SnapCap
SnapCap [Member] [Member]
SnapCap [Member]
Business Acquisition
Business Acquisition [Line Items]
Initial cash consideration to acquire business
Payments to Acquire Businesses, Gross
Contingent consideration range, minimum
Business Combination, Indemnification Assets, Range of Outcomes, Value, Low
Contingent consideration range, maximum
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Purchase price consideration on acquisition date
Business Combination, Consideration Transferred
Current contingent consideration
Business Combination, Contingent Consideration, Liability, Current
Non-current contingent consideration
Business Combination, Contingent Consideration, Liability, Noncurrent
Accounts receivable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Working capital
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Working Capital
Amount recognized as of the acquisition date for the identifiable current assets acquired in excess of (less than) the aggregate current liabilities assumed.
Fixed assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
Goodwill
Goodwill
Accounts payable and accrued liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable
Deferred tax liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent
Noncontrolling interest
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value
Total purchase price
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Acquisition-related costs
Business Combination, Acquisition Related Costs
Value of potential contingent consideration payments based on specified increases in federal funds interest rates
Business Combination, Contingent Consideration, Individual Payments Based on Specified Increases in Federal Funds Interest Rates
Business Combination, Contingent Consideration, Individual Payments Based on Specified Increases in Federal Funds Interest Rates
One-time contingent consideration performance payment
Business Combination, Contingent Consideration, One-Time Performance Payment
Business Combination, Contingent Consideration, One-Time Performance Payment
Fair value of the intangible assets acquired with definite lives
Finite-lived Intangible Assets Acquired
Weighted average useful life of intangible assets acquired
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Operating Income (Loss)
Value of option to acquire a foreign affiliate
Option to Acquire a Foreign Affiliate
Option to Acquire a Foreign Affiliate
Potential future issuance of restricted stock units
Potential Future Issuance of Restricted Stock Units
Potential Future Issuance of Restricted Stock Units
Value of restricted stock unit awards
Stock Granted, Value, Share-based Compensation, Net of Forfeitures
Pro forma revenue
Business Acquisition, Pro Forma Revenue
Pro forma net income from continuing operations
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax
After tax contingent consideration tax
Business Combination, Contingent Consideration Arrangements, After Tax Contingent Consideration Expense
After tax contingent consideration expense.
Contingent consideration payment
Payment for Contingent Consideration Liability, Investing Activities
ASSETS:
Assets [Abstract]
Accounts receivable (net of allowance of $1,260 and $1,059, respectively)
Accounts Receivable, Net, Current
Prepaid and other current assets
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property and equipment (net of accumulated depreciation of $12,172 and $9,739, respectively)
Property, Plant and Equipment, Net
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Deferred income tax assets
Deferred Tax Assets, Net, Noncurrent
Other non-current assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES:
Liabilities [Abstract]
Accounts payable, trade
Accounts Payable, Trade, Current
Accrued expenses and other current liabilities
Accrued Liabilities, Current
Current liabilities of discontinued operations
Total current liabilities
Liabilities, Current
Other non-current liabilities
Other Liabilities, Noncurrent
Total liabilities
Liabilities
Commitments and contingencies
Commitments and Contingencies
SHAREHOLDERS' EQUITY:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock $.01 par value; 5,000,000 shares authorized; none issued or outstanding
Preferred Stock, Value, Issued
Common stock $.01 par value; 50,000,000 shares authorized; 14,174,357 and 13,955,378 shares issued, respectively, and 11,968,459 and 11,791,633 shares outstanding, respectively
Common Stock, Value, Outstanding
Additional paid-in capital
Additional Paid in Capital, Common Stock
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Treasury stock; 2,205,898 and 2,163,745 shares, respectively
Treasury Stock, Value
Noncontrolling interest
Noncontrolling Interest in Variable Interest Entity
Total shareholders' equity
Stockholders' Equity Attributable to Parent
Total liabilities and shareholders' equity
Liabilities and Equity
Statement of Cash Flows [Abstract]
Cash flows from operating activities attributable to continuing operations:
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net income and comprehensive income
Less: Loss from discontinued operations, net of tax
Adjustments to reconcile income from continuing operations to net cash provided by operating activities attributable to continuing operations:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Loss on disposal of fixed assets
Gain (Loss) on Disposition of Property Plant Equipment
Rental amortization of intangibles and depreciation
Other Depreciation and Amortization
Non-cash compensation expense
Share-based Compensation
Deferred income taxes
Deferred Income Tax Noncash Expense (Benefit)
The noncash component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.
Bad debt expense
Provision for Doubtful Accounts
Changes in current assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Prepaid and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Accounts payable, accrued expenses and other current liabilities
Increase (Decrease) in Accounts Payable and Other Current Liabilities
This element represent increase or decrease in accounts payable and other current liabilities
Income taxes payable
Increase (Decrease) in Income Taxes Payable
Other, net
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Net cash provided by operating activities attributable to continuing operations
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Cash flows from investing activities attributable to continuing operations:
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Capital expenditures
Payments to Acquire Productive Assets
Acquisition of SnapCap
Other Payments to Acquire Businesses
Acquisition of DepositAccounts
Payments to Acquire Businesses, Net of Cash Acquired
Initial cash consideration to acquire business
Acquisition of a business
Payments to Acquire Intangible Assets
Decrease in restricted cash
Net cash used in investing activities attributable to continuing operations
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Cash flows from financing activities attributable to continuing operations:
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Proceeds from stock options exercised
Proceeds from Stock Options Exercised
Proceeds from exercise of stock options, net of payments related to net-share settlement of stock-based compensation
Payments Related to Tax Withholding for Share-based Compensation
Proceeds from the issuance of 0.625% Convertible Senior Notes
Proceeds from Convertible Debt
Payment of convertible note hedge transactions
Payments for Hedge, Financing Activities
Proceeds from the sale of warrants
Proceeds from Issuance of Warrants
Proceeds from equity offering
Proceeds from equity offering, financing activities
Proceeds from equity offering, financing activities
Payment of equity offering costs
Payment of equity offering costs, financing activities
Payment of equity offering costs, financing activities
Payment of debt issuance costs
Payments of Debt Issuance Costs
Purchase of treasury stock
Payments for Repurchase of Common Stock
Net cash provided by (used in) financing activities attributable to continuing operations
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Total cash provided by (used in) continuing operations
Net Cash Provided by (Used in) Continuing Operations
Net cash used in operating activities attributable to discontinued operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Total cash used in discontinued operations
Net Cash Provided by (Used in) Discontinued Operations
Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Statement of Stockholders' Equity [Abstract]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock
Common Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Accumulated Deficit
Retained Earnings [Member]
Treasury Stock
Treasury Stock [Member]
Comprehensive Income (Loss)
Comprehensive Income [Member]
Noncontrolling interest
Noncontrolling Interest [Member]
Statement
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance
Balance (in shares)
Shares, Issued
Net income and comprehensive income
Non-cash compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Purchase of treasury stock
Treasury Stock, Value, Acquired, Cost Method
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures
Issuance of common stock for stock options, restricted stock awards and restricted stock units, net of withholding taxes (in shares)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Cumulative effect adjustment due to ASU 2016-09
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
Issuance of 0.625% Convertible Senior Notes, net
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
Convertible note hedge
Adjustments to Additional Paid in Capital, Entry into Convertible Note Hedge Transactions
Adjustments to Additional Paid in Capital, Entry into Convertible Note Hedge Transactions
Sale of warrants
Adjustments to Additional Paid in Capital, Warrant Issued
Noncontrolling interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Balance
Balance (in shares)
Accrued expenses and other current liabilities
Accrued Liabilities, Current [Abstract]
Accrued advertising expense
Accrued Advertising, Current
Accrued compensation and benefits
Employee-related Liabilities, Current
Accrued professional fees
Accrued Professional Fees, Current
Customer deposits and escrows
Customer Deposits, Current
Other
Other Liabilities, Current
Total accrued expenses and other current liabilities
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill
Goodwill, Gross
Increase to goodwill due to acquisitions
Goodwill, Period Increase (Decrease)
Goodwill, gross at the end of the period
Goodwill, accumulated impairment loss at the beginning of the period
Goodwill, Impaired, Accumulated Impairment Loss
Impairment losses during period related to goodwill
Goodwill, Impairment Loss
Goodwill, accumulated impairment loss at the end of the period
Net goodwill at the beginning of the period
Net goodwill at the end of the period
Net goodwill
Intangible assets with indefinite lives
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Intangible assets with definite lives, net
Total intangible assets, net
SHAREHOLDERS' EQUITY
Earnings Per Share [Text Block]
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
Payment of convertible note hedge transactions
Number of shares covered by the hedge transactions
Number of Shares Covered by the Hedge Transactions
Number of Shares Covered by the Hedge Transactions
Strike price of warrants sold
Class of Warrant or Right, Exercise Price of Warrants or Rights
Premium of warrant strike price over sales price of common stock
Premium of warrant strike price over sales price of common stock
Premium of warrant strike price over sales price of common stock