Earnings Per Share [Abstract] Calculation of weighted average common shares Weighted Average Number of Shares Outstanding Reconciliation [Abstract] 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 Weighted average common shares, diluted Weighted Average Number of Shares Outstanding, Diluted Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event Subsequent Event [Line Items] 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 Payables and Accruals [Abstract] Accrued expenses and other current liabilities Accrued Liabilities, Current [Abstract] Accrued litigation liability Estimated Litigation Liability Accrued advertising expense Accrued Advertising, Current Accrued compensation and benefits Employee-related Liabilities, Current Accrued professional fees Accrued Professional Fees, Current Accrued restructuring costs Restructuring Reserve, Current Customer deposits and escrows Customer Deposits, Current Deferred rent Deferred Rent Credit, Current Other Other Liabilities, Current Total accrued expenses and other current liabilities Accrued Liabilities, Current Accrued restructuring liability classified in other non-current liabilities Restructuring Reserve, Noncurrent 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] Purchase agreements Purchase Agreements [Member] Represents information pertaining to purchase agreements, a finite-lived intangible asset of the entity. Technology Developed Technology Rights [Member] Customer lists Customer Lists [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 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 loss Net Income (Loss) Available to Common Stockholders, Basic Less: Loss from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net loss from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Adjustments to reconcile net loss from continuing operations to net cash provided by (used in) 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 Amortization of intangibles Amortization of Intangible Assets Depreciation Depreciation, Depletion 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 Deferred revenue Increase (Decrease) in Deferred Revenue Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by (used in) 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 Decrease in restricted cash Increase (Decrease) in Restricted Cash Net cash provided by (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] Payments related to net-share settlement of stock-based compensation, net of proceeds from exercise of stock options Payments Related to Tax Withholding for Share-based Compensation Dividends Payments of Dividends Net cash used in financing activities attributable to continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Total cash 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 decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Schedule of computation of weighted average diluted shares WeightedAverageShareDisclosureTable [Table Text Block] WeightedAverageShareDisclosureTable [Table 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] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock options Employee Stock Option [Member] STOCK-BASED COMPENSATION Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Price Share Price 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 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 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 Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 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 Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Discontinued Operations and Disposal Groups [Abstract] DISCONTINUED OPERATIONS Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Continuing Lease Obligations Continuous Lease Obligations [Member] Represents information pertaining to continuous lease obligation. RESTRUCTURING EXPENSE Restructuring Cost and Reserve [Line Items] Changes in restructuring expenses Restructuring Reserve [Roll Forward] December 31, 2013 Restructuring Reserve Restructuring expense Business Exit Costs Payments Payments for Restructuring March 31, 2014 Restructuring liabilities Restructuring Reserve [Abstract] Restructuring liabilities included in accrued expense and other current liabilities Restructuring liabilities included in other non-current liabilities Cash and Cash Equivalents [Abstract] Schedule of Restricted Cash and Cash Equivalents [Table] Schedule of Restricted Cash and Cash Equivalents [Table] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Escrow Deposit for Surety Bonds Escrow Deposit for Surety Bonds [Member] Represents the restricted cash in escrow deposit for surety bonds. Escrow Deposit for Corporate Purchasing Card Program Escrow Deposit for Corporate Purchasing Card Program [Member] Represents the restricted cash in escrow deposit for corporate purchasing card program. 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. Escrow Deposit for Earnout Related to Acquisition Escrow Deposit for Earnout Related to Acquisition [Member] Represents the restricted cash in escrow deposit for earnout related to an acquisition. Escrow Deposit for Loan Loss Obligations Escrow Deposit for Loan Loss Obligations [Member] Represents the restricted cash in escrow deposit for loan loss obligations. 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] Restricted cash and cash equivalents Restricted Cash and Cash Equivalents, Current Decrease (increase) in Restricted Cash Payment made from restricted cash on loss contingency Loss Contingency Accrual, Payments 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 Schedule of 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] Summary of the information about stock options outstanding and exercisable Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of non-vested RSUs, RSUs with a market condition, restricted stock and restricted stock with a market condition as at the end of the period and changes during the reporting period Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] RSUs Restricted Stock Units (RSUs) [Member] RSUs with a market condition RSU Market Condition Member [Domain] RSU Market Condition Member [Domain] Restricted stock Restricted Stock [Member] Restricted stock with a market condition Performance Shares [Member] Nonvested RSUs, RSUs with a Market Condition, Restricted Stock and Restricted Stock with a Market Condition, 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 Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Nonvested at the end of the period (in shares) Nonvested RSUs, RSUs with a Market Condition, Restricted Stock and Restricted Stock with a Market Condition, 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) Commitments and Contingencies Disclosure [Abstract] CONTINGENCIES Legal Matters and Contingencies [Text Block] Compensation Related Costs [Abstract] DISCRETIONARY CASH BONUS Compensation Related Costs, General [Text Block] ORGANIZATION -- None. No documentation exists for this element. -- ORGANIZATION Business Description and Basis of Presentation [Text Block] Statement of Financial Position [Abstract] ASSETS: Assets [Abstract] Cash and cash equivalents Accounts receivable, net of allowance of $544 and $408, respectively Accounts Receivable, Net, Current Prepaid and other current assets Prepaid Expense and Other Assets, Current Current assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other non-current assets Other Assets, Noncurrent Non-current assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Noncurrent Total assets Assets LIABILITIES: Liabilities [Abstract] Accounts payable, trade Accounts Payable, Trade, Current Deferred revenue Deferred Revenue, Current Accrued expenses and other current liabilities Current liabilities of discontinued operations (Note 14) Liabilities of Disposal Group, Including Discontinued Operation, Current Total current liabilities Liabilities, Current Other non-current liabilities Other Liabilities, Noncurrent Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Non-current liabilities of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies SHAREHOLDERS' EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock $.01 par value; authorized 5,000,000 shares; none issued or outstanding Preferred Stock, Value, Issued Common stock $.01 par value; authorized 50,000,000 shares; issued 12,675,487 and 12,619,835 shares, respectively, and outstanding 11,306,555 and 11,250,903 shares, respectively Common Stock, Value, Outstanding Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated deficit Retained Earnings (Accumulated Deficit) Treasury stock 1,368,932 and 1,368,932 shares, respectively Treasury Stock, Value Total shareholders' equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders' equity Liabilities and Equity Accounting Policies [Abstract] 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] New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Property, Plant and Equipment [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] 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. Leasehold improvements Leasehold Improvements [Member] Furniture and other equipment Furniture and Fixtures [Member] Projects in progress Construction in Progress [Member] Property and Equipment Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment, net Goodwill Goodwill, Gross Accumulated impairment losses Goodwill, Impaired, Accumulated Impairment Loss Net goodwill Intangible assets with indefinite lives Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangible assets with definite lives, net Total intangible assets, net Segment Reporting [Abstract] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Income Statement [Abstract] Statement [Table] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement [Line Items] Statement [Line Items] Revenue Revenues Costs and expenses: Costs and Expenses [Abstract] Cost of revenue (exclusive of depreciation 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 Restructuring and severance Restructuring Charges Litigation settlements and contingencies Litigation Settlement, Expense Total costs and expenses Costs and Expenses Operating loss Operating Income (Loss) Other income (expense): Other Nonoperating Income (Expense) [Abstract] Interest expense Interest Expense Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax benefit (expense) Income Tax Expense (Benefit) Gain from sale of discontinued operations, net of tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Loss from operations of discontinued operations, net of tax Income (Loss) from Discontinued Operations Net of Applicable Taxes This extension captures Income (loss) from operations of discontinued operations, net of tax. Loss from discontinued operations Net loss Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Diluted Net loss per share from continuing operations: Income (Loss) from Operations before Extraordinary Items, Per Basic and Diluted Share [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 Net loss per share from discontinued operations: Income (Loss) from Discontinued Operations, Net of Tax, Per Basic and Diluted Share [Abstract] -- None. No documentation exists for this element. -- 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 Net loss per share attributable to common shareholders: Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Range of exercise price $0.01 to $4.99 Range One of Exercise Prices [Member] Represents the exercise price range one of the outstanding stock options. Range of exercise price $5.00 to $7.45 Range Two of Exercise Prices [Member] Represents the exercise price range two of the outstanding stock options. Range of exercise price $7.46 to $9.99 Range Three of Exercise Prices [Member] Represents the exercise price range three of the outstanding stock options. Range of exercise price $10.00 to $14.99 Range Four of Exercise Prices [Member] Represents the exercise price range four of the outstanding stock options. Range of exercise price $15.00 to $19.99 Range Five of Exercise Prices [Member] Represents the exercise price range five of the outstanding stock options. Range of exercise price $20.00 to $33.59 Range Six of Exercise Prices [Member] Represents the exercise price range six of the outstanding stock options. Stock options outstanding and exercisable by range of exercise prices Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Options Outstanding at the end of the period (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Options Outstanding - Weighted Average Remaining Contractual Term Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Options Outstanding - Weighted Average Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Options Exercisable at the end of the period (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Options Exercisable - Weighted Average Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Exercise price, low end of the range (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Exercise price, high end of the range (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Income Tax Disclosure [Abstract] Schedule of income tax benefit (provision) Schedule of income tax provision benefit [Table Text Block] [Table Text Block] for Schedule of income tax provision benefit [Table] 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] Statement Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Balance (in shares) Shares, Issued Comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Year-to-date net income (loss) Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Non-cash compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Dividends Dividends Net-share settlement of stock-based compensation, net of issuance of common stock upon stock option exercise Stock Issue During Period of Stock Option and Restricted Stock Net Value of Units This element represent Issuance of common stock values upon exercise of stock options and vesting of restricted stock units net of withholding taxes. Net-share settlement of stock-based compensation, net of issuance of common stock upon stock option exercise (in shares) Stock Issue During Period of Stock Option and Restricted Stock Net Shares of Units This element represent Issuance of common stock shares upon exercise of stock options and vesting of restricted stock units net of withholding taxes. Balance Balance (in shares) Effective tax rates (as a percent) Effective Income Tax Rate Reconciliation, Percent Earnings Per Share Earnings Per Share [Text Block] STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] 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 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five 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] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Income Statement Location [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [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 Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Total non-cash compensation expense Allocated Share-based Compensation Expense Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] RealEstate.com Real Estate Com [Member] Represents information pertaining to RealEstate.com, REALTORS. 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 assets and liabilities of the discontinued operations Schedule of Disposal Groups Including Discontinued Operations, Balance Sheet [Table Text Block] Tabular disclosure of disposal groups, which may include the classification and carrying value of assets and liabilities comprising the disposal group. Schedule of loans sold for the period and the aggregate loan losses Schedule of Loan Sold and Aggregate Loan Losses [Table Text Block] Tabular disclosure of the loans sold for the period and the aggregate loan losses. 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. Internet domain names and trademarks Internet Domain, Names and Trademarks [Member] Internet domain names is a string of typographic characters used to describe the location of a specific individual, business, computer, or piece of information online. Formally known as the Uniform Resource Locator or URL, it is often considered to be the address of a certain World Wide Web site. Trademarks are the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style. Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Discover Bank Discover Bank [Member] Represents Discover Bank, a wholly owned subsidiary of Discover Financial Services. Organization - Discontinued Operations Proceeds from sale of assets Proceeds from Sale of Intangible Assets Gain on sale of internet domain names and trademarks Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Total proceeds from the sale Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds Amount received from sale of assets prior to closing Asset Purchase Agreement, Amount Received Prior to Closing Represents the aggregate cash received from the sale of assets prior to the closing under the purchase agreement entered into by the reporting entity. Amount received from sale of assets on the closing Asset Purchase Agreement, Amount Received upon Closing Represents the aggregate cash received from the sale of assets on the closing under the purchase agreement entered into by the reporting entity. Amount received from the sale on the first anniversary of the closing Asset Purchase Agreement, Amount Receivable Represents the aggregate cash receivable for sale of the assets under the purchase agreement entered into by the reporting entity. Period for which marketing related services are to be provided Period for which Marketing Related Services are Provided Represents the term for which the entity will be providing the marketing related services to 'Discover'. INCOME TAXES Income Tax Disclosure [Text Block] RESTRUCTURING EXPENSE Restructuring and Related Activities Disclosure [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] 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. 2014 Loan Sales in 2014 [Member] [Domain] Represents the loan sales in 2014. 2013 Loan Sales in 2013 [Member] Represents the loan sales in 2013. 2012 Loan Sales in 2012 [Member] Represents the loan sales in 2012. 2011 Loan Sales in 2011 [Member] Represents the loan sales in 2011. 2010 Loan Sales in 2010 [Member] Represents the loan sales in 2010. 2009 Loan Sales in 2009 [Member] Represents the loan sales in 2009. 2008 Loan Sales in 2008 [Member] Represents the loan sales in 2008. 2007 Loan Sales in 2007 [Member] Represents the loan sales in 2007. 2006 Loan Sales in 2006 [Member] Represents the loan sales in 2006. 2005 and prior years Loan Sales in 2005 and Prior Years [Member] Represents the loan sales in 2005 and prior years. Loan Loss Obligations Loss Contingencies [Line Items] Loan loss reserve, at carrying value Loss Contingency Accrual Estimated range of remaining possible losses due to loan losses, minimum Loss Contingency, Range of Possible Loss, Minimum Estimated range of remaining possible losses due to loan losses, maximum Loss Contingency, Range of Possible Loss, Maximum 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. Number of loans sold Loss Contingencies, Number of Loans Sold Represents the number of loans sold by the entity. Original principal balance of loans sold Loss Contingencies, Original Principal Balance Represents the original principal balance of loans sold by the entity. Number of loans sold with losses Loss Contingencies, Number of Loans Sold with Losses Represents the number of loans sold with losses by the entity. Original principal balance of loans sold with losses Loss Contingencies, Original Principal Balance with Losses Represents the original principal balance of loans sold with losses by the entity. Amount of aggregate losses Loss Contingencies, Aggregate Loan Losses Represents the aggregate amount of losses incurred on the sale of loans. 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 Summary of information by segment and reconciliations to Adjusted EBITDA and income (loss) before income taxes Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Restricted Cash and Cash Equivalents Schedule of Restricted Cash and Cash Equivalents [Table Text Block] Accounts receivable, allowance (in dollars) Allowance for Doubtful Accounts Receivable, Current 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 PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [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 Schedule of property and equipment, net Property, Plant and Equipment [Table Text Block] Schedule of accrued expenses and other current liabilities Schedule of Accrued Liabilities [Table Text Block] Schedule of balance of goodwill and 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] Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] Lijkel Dijkstra v. Harry Carenbauer, Home Loan Center, Inc Lijkel Dijkstra v. Harry Carenbauer, Home Loan Center, Inc [Member] Lijkel Dijkstra v. Harry Carenbauer, Home Loan Center, Inc [Member] Boschma v. Home Loan Center, Inc. Boschma v. Home Loan Center, Inc. [Member] Boschma v. Home Loan Center, Inc. [Member] Lending Tree v. Zillow, Inc. Lending Tree v. Zillow, Inc. [Member] Lending Tree v. Zillow, Inc. [Member] Violation of various laws and breach of contracts and covenants Violation of Various Laws and Breach of Contracts and Convenants [Member] Represents information pertaining to violation of various laws and breach of contracts and covenants. Unfavorable regulatory action Unfavorable Regulatory Action [Member] Contingencies Litigation settlement, gross Litigation Settlement, Amount Range of possible loss, minimum Range of possible loss, maximum Amount of reserve for contingencies Amount of insurance recoverable receivable Loss Contingency Accrual, Insurance-related Assessment, Policy Surcharge Asset Number of patents alleged infringement upon, maximum Number of Patents Alleged Infringed Upon, Maximum Number of Patents Alleged Infringed Upon, Maximum 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 Number of total complaints filed Loss Contingency, New Claims Filed, Number Number of complaints dismissed by federal and state courts Loss Contingency, Claims Settled and Dismissed, Number 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. RESTRICTED CASH Restricted Assets Disclosure [Text Block] Schedule of restructuring expense and payments against liabilities Restructuring and Related Costs [Table Text Block] ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Compensation charge related to discretionary cash bonus Special Options Bonus Represents the amount of special options bonus. Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Lending Mortgage [Member] Represents information pertaining to mortgage segment, one of the reportable segments of the entity. Other Non Mortgage [Member] Represents information pertaining to non-mortgage segment, one of the reportable segment of the entity. Corporate Corporate Segment [Member] SEGMENT INFORMATION Segment Reporting Information [Line Items] Number of reportable operating segments Number of Reportable Segments Litigation settlements and contingencies Operating income (loss) Adjustments to reconcile to Adjusted EBITDA: Adjustments to Reconcile to Adjusted Earnings before Interest Taxes Depreciation and Amortization [Abstract] -- None. No documentation exists for this element. -- Loss (gain) on disposal of assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Non-cash compensation Discretionary cash bonus Adjusted EBITDA Adjusted Earnings before Interest Taxes Depreciation and Amortization Represents amount of adjusted earnings before interest, taxes, depreciation and amortization. Adjustments to reconcile to Income before taxes: Adjustments to Reconcile to Income (Loss) before Taxes [Abstract] -- None. No documentation exists for this element. -- Real estate businesses Discover 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 Income (loss) before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Income tax benefit (expense) Discontinued Operation, Tax Effect of Discontinued Operation Gain from sale of discontinued operations, net of tax Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation Assets and liabilities of facilities reported as discontinued operations Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] Current assets Non-current assets Current liabilities Non-current liabilities Net liabilities Assets (Liabilities) of Disposal Group, Including Discontinued Operation, Net For the disposal group, including a component of the entity (discontinued operation), carrying value of assets less liabilities. GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block]