Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] OTHER ASSETS Other Assets Disclosure [Text Block] Income Tax Disclosure [Abstract] Deferred Tax Assets and Liabilities [Table] Deferred Tax Assets and Liabilities [Table] Tabular disclosure of the components of net deferred tax asset or liability recognized in the entity's statement of financial position. Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] NCI Nationwide Credit Inc. [Member] Represents information pertaining to the acquisition of Nationwide Credit, Inc. Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Foreign - U.S. state US State Jurisdiction [Member] Represents the designated state tax department of the government of the United States of America, entitled to levy and collect income taxes from the entity. Foreign - non-U.S. Non US Jurisdiction [Member] Represents the designated tax department of countries other than the United States of America, entitled to levy and collect income taxes from the entity. Domestic - Luxembourg Domestic Tax Authority [Member] Foreign - U.S. federal Internal Revenue Service (IRS) [Member] U.S. State and U.S. Federal U.S. State and U.S. Federal [Member] U.S. State and U.S. Federal [Member] Tax effects of temporary differences Deferred Tax Assets and Liabilities [Line Items] Components of tax effects of the temporary differences Components of Deferred Tax Assets and Liabilities [Abstract] Non-current deferred tax assets: Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Classification [Abstract] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards U.S. federal and state tax credits Deferred Tax Assets, Tax Credit Carryforward, Federal and State Deferred Tax Assets, Tax Credit Carryforward, Federal and State Other non-U.S. deferred tax assets Deferred Tax Assets, Non-U.S. Represents the amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards arising from non-U.S. operations. Share-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Unrealized losses Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross Non-current deferred tax liabilities: Deferred Tax Liabilities Noncurrent Classification [Abstract] Intangible assets Deferred Tax Liabilities, Intangible Assets Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Other non-U.S. deferred tax liability Deferred Tax Liabilities, Non-U.S. Represents the amount before allocation of valuation allowances of deferred tax liabilities attributable to deductible temporary differences and carryforwards arising from non-U.S. operations. Other Deferred Tax Liabilities, Other Deferred tax assets net of deferred tax liabilities Deferred Tax Assets, Gross, Net of Deferred Tax Liabilities Deferred Tax Assets, Gross, Net of Deferred Tax Liabilities Valuation allowance Deferred Tax Assets, Valuation Allowance Deferred tax assets, net Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Income Taxes Income Tax [Abstract] Increase in valuation allowance related to state and foreign losses Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Undistributed earnings Undistributed Earnings of Foreign Subsidiaries Deferred tax liability that would be recognized if earnings were distributed Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Operating loss carryforwards, valuation allowance Operating Loss Carryforwards, Valuation Allowance Operating loss carryforwards Operating Loss Carryforwards Annual limit on use of operating loss carryforward Operating Loss Carryforwards Annual Limit for Utilization Represents the sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available each year to reduce future taxable income under enacted tax laws. Tax Cuts And Jobs Act of 2017, provisional income tax expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Other Income and Expenses [Abstract] OTHER INCOME (EXPENSE), NET Other Income and Other Expense Disclosure [Text Block] Risks and Uncertainties [Abstract] CUSTOMER CONCENTRATION Concentration Risk Disclosure [Text Block] Accounting Policies [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Difference between Revenue Guidance in Effect before and after Topic 606 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Calculated under Revenue Guidance in Effect before Topic 606 Calculated under Revenue Guidance in Effect before Topic 606 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Accounts receivable, net Accounts Receivable, Net, Current Total current assets Assets, Current Total assets Assets Deferred revenue Contract with Customer, Liability, Current Other current liabilities Other Liabilities, Current Total current liabilities Liabilities, Current Other non-current liabilities Other Liabilities, Noncurrent Retained earnings Retained Earnings (Accumulated Deficit) Altisource equity Stockholders' Equity Attributable to Parent Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Table] Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Table] Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Shares and Restricted Share Units Restricted Stock And Restricted Stock Units (RSUs) [Member] Restricted Stock And Restricted Stock Units (RSUs) [Member] Restricted Shares Restricted Stock [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Performance-Based, Vesting Period One Performance-Based, Tranche One [Member] Represents a share based compensation award with vesting based upon the achievement of certain business unit specific financial measures, Tranche One. Performance-Based, Vesting Period Two Performance-Based, Tranche Two [Member] Represents a share based compensation award with vesting based upon the achievement of certain business unit specific financial measures, Tranche Two. Performance-Based, Vesting Period Three Performance-Based, Tranche Three [Member] Performance-Based, Tranche Three [Member] Vesting Based on Service Vesting Based on Service [Member] Represents a share based compensation award with vesting based on length of service. Performance-Based Performance-Based [Member] Represents a share based compensation award with vesting based upon the achievement of certain business unit specific financial measures. Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Line Items] Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Line Items] [Line Items] for Schedule of Share-based compensation, Restricted Stock and Restricted Stock units activity [Table] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based compensation arrangement by share-based payment award, award vesting rights, percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Share-based compensation arrangement by share-based payment award, alternate award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Alternate Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Alternate Award Vesting Period Other than options, outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number Attainment above threshold performance levels, vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Options, Attainment Exceeds Target, Vesting, Percentage Share-based Compensation Arrangement by Share-based Payment Award, Options, Attainment Exceeds Target, Vesting, Percentage Other than options, granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Grants in Period, Weighted Average Grant Date Fair Value The weighted average fair value at grant date for nonvested non-option equity-based awards issued during the period. Share-based compensation arrangement by share-based payment award, plan modification, number of instruments other than options, affected (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Non-Option Equity Instruments, Affected Share-based compensation arrangement by share-based payment award, plan modification, number of non-option equity investments, affected Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Outstanding, beginning of period (in shares) Granted (in shares) Issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Other Forfeited/canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations Outstanding, end of period (in shares) Payables and Accruals [Abstract] Schedule of accounts payable and accrued expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of other current liabilities Schedule of Accrued Liabilities [Table Text Block] Income Statement [Abstract] Insurance recovery proceeds Loss Contingency, Receivable Reclassification of unrealized gain on investment in equity securities, income tax provision, to retained earnings from the cumulative effect of an accounting change (Note 2) Other Comprehensive Income (Loss), Reclassification of Gain on Investment in Equity Securities, Net of Tax, to Retained Earnings from the Effect of an Accounting Change, Tax Other Comprehensive Income (Loss), Reclassification of Gain on Investment in Equity Securities, Net of Tax, to Retained Earnings from the Effect of an Accounting Change, Tax Unrealized gain (loss) on investment in equity securities, income tax (provision) benefit Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax Organization, Consolidation and Presentation of Financial Statements [Abstract] Number of reportable segments Number of Reportable Segments Fair Value Disclosures [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value, Level 1 Fair Value, Inputs, Level 1 [Member] Fair Value, Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Level 3 Fair Value, Inputs, Level 3 [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior secured term loan Senior Secured Term Loan [Member] Represents information pertaining to the senior secured term loan. Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Assets, Fair Value Disclosure [Abstract] Assets, Fair Value Disclosure [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash and Cash Equivalents, Noncurrent Investment in equity securities Available-for-sale Securities, Equity Securities, Current Long-term receivable (Note 4) Notes, Loans and Financing Receivable, Gross, Noncurrent Liabilities, Fair Value Disclosure [Abstract] Liabilities, Fair Value Disclosure [Abstract] Senior secured term loan, carrying value Long-term Debt, Gross Senior secured term loan, fair value Long-term Debt, Fair Value Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Information related to various accounting policies of the entity. Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Lenders One Lenders One [Member] Lenders One Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Furniture and fixtures Furniture and Fixtures [Member] Office equipment Office Equipment [Member] Computer hardware Computer Equipment [Member] Computer software Software and Software Development Costs [Member] Leasehold improvements Leasehold Improvements [Member] Accounting Standards Update 2016-09 Accounting Standards Update 2016-09 [Member] Accounting Standards Update 2016-01 Accounting Standards Update 2016-01 [Member] Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated other comprehensive income (loss) Comprehensive Income [Member] Retained earnings Retained Earnings [Member] Summary of significant accounting policies Summary of Significant Accounting Policies [Line Items] Principles of Consolidation Total assets Variable Interest Entity, Consolidated, Carrying Amount, Assets Total liabilities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Premises and Equipment, Net Property, Plant and Equipment [Abstract] Estimated useful lives Property, Plant and Equipment, Useful Life Defined Contribution 401(k) Plan Defined Contribution Plan [Abstract] Expense recorded for discretionary amounts contributed Defined Contribution Plan, Employer Discretionary Contribution Amount New Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Unbilled accounts receivable Unbilled Receivables, Current Retained earnings decrease Cumulative effect (decrease) increase of an accounting change Cumulative Effect of New Accounting Principle in Period of Adoption Operating lease, right-of-use, estimated asset and liability (approximately) Operating Lease, Right-of-Use, Estimated Asset and Liability, Upon Adoption of ASU Operating Lease, Right-of-Use, Estimated Asset and Liability, Upon Adoption of ASU Revenues [Abstract] REVENUE Revenue from Contract with Customer [Text Block] Schedule of assumptions used to determine the fair value of options as of the grant date Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of the weighted average fair value of stock options granted, the total intrinsic value of stock options exercised and the fair value of options vested Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block] Summary of the activity of the entity's stock options Share-based Compensation, Stock Options, Activity [Table Text Block] Shares authorized under stock option plans, by exercise price range Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Shares authorized under stock option plans by vesting price range Schedule of Share Based Compensation Shares Authorized under Stock Option Plans by Vesting Price Range [Table Text Block] Tabular disclosure of option vesting prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option and weighted average exercise price. Restricted shares and restricted share units activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Investments, Debt and Equity Securities [Abstract] Marketable Securities [Table] Marketable Securities [Table] Marketable Securities [Line Items] Marketable Securities [Line Items] Number of available for sale shares acquired (in shares) Available-For-Sale Securities, Number Of Shares Acquired Available-For-Sale Securities, Number Of Shares Acquired Payments to acquire equity securities Payments To Acquire Equity Securities, Available-For-Sale Payments To Acquire Equity Securities, Available-For-Sale Unrealized loss on investment in equity securities Equity Securities, FV-NI, Unrealized Gain (Loss) Unrealized gain (loss) on investment in equity securities, net of income tax (provision) benefit of $0, $(921), $720 Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax Investment income, dividend Investment Income, Dividend Available for sale securities, investment related expenses Available-for-sale Securities, Investment Related Expenses Available-for-sale Securities, Investment Related Expenses Investment shares, transfer restrictions, percent (no more than) Available-for-sale Securities, Transfer Restrictions, Percent The percent of available-for-sale securities owned that were previously subject to a lock-up period with respect to the sale or transfer of the shares of common stock that may be transferred. Investment shares, transfer restrictions, number of shares (in shares) Available-for-sale Securities, Transfer Restrictions, Number of Shares The number of available-for-sale securities owned that were previously subject to a lock-up period with respect to the sale or transfer of the shares of common stock that may be transferred. Maximum allowable increase, percent Increase In Shares that may be Sold in Subsequent Quarters The maximum percent increase in the unsold permitted amount in future quarters. Statement of Financial Position [Abstract] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Treasury stock, shares (in shares) Treasury Stock, Shares Revenue Revenue from Contract with Customer, Excluding Assessed Tax Cost of revenue Cost of Goods and Services Sold Gross profit Gross Profit Selling, general and administrative expenses Selling, General and Administrative Expense Gain on sale of business (Note 4) Gain (Loss) on Disposition of Business Restructuring charges (Note 24) Restructuring Charges Litigation settlement loss, net of $4,000 insurance recovery (Note 20) Gain (Loss), Net, Related to Litigation Settlement Amount of gain (loss) recognized in settlement of litigation, net of insurance recoveries. Income from operations Operating Income (Loss) Other income (expense), net: Other Nonoperating Income (Expense) [Abstract] Interest expense Interest Expense Unrealized loss on investment in equity securities (Note 6) Other (expense) income, net Other Nonoperating Income (Expense) Total other income (expense), net Nonoperating Income (Expense) Income before income taxes and non-controlling interests Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (provision) benefit Income Tax Expense (Benefit) Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net (loss) income attributable to Altisource Net Income (Loss) Available to Common Stockholders, Basic (Loss) Earnings per share: Earnings Per Share [Abstract] Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Other comprehensive (loss) income, net of tax: Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Reclassification of unrealized gain on investment in equity securities, net of income tax provision of $200, to retained earnings from the cumulative effect of an accounting change (Note 2) Other Comprehensive Income (Loss), Reclassification Of Gain On Investment In Equity Securities, Net Of Tax, To Retained Earnings From The Effect Of An Accounting Change Reclassification of gain on investment in equity securities, net of income tax provision, to retained earnings from the effect of an accounting change Comprehensive (loss) income, net of tax Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive (loss) income attributable to Altisource Comprehensive Income (Loss), Net of Tax, Attributable to Parent Business Combinations [Abstract] Schedule of purchase price allocation Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Accounts receivable, net Short-term investments in real estate (Note 9) Real Estate Held-for-sale Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Premises and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net Finite-Lived Intangible Assets, Net Deferred tax assets, net (Note 22) Other assets Other Assets, Noncurrent Total assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Current portion of long-term debt Long-term Debt, Current Maturities Other current liabilities Total current liabilities Long-term debt, less current portion Long-term Debt, Excluding Current Maturities Other non-current liabilities Commitments, contingencies and regulatory matters (Note 25) Commitments Contingencies and Regulatory Matters Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. In addition, indicates that, in connection with being subject to regulation and oversight by governmental authorities, the entity is exposed to potential losses arising from possible claims against the company's resources. Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common stock ($1.00 par value; 100,000 shares authorized, 25,413 issued and 16,276 outstanding as of December 31, 2018; 17,418 outstanding as of December 31, 2017) Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock, at cost (9,137 shares as of December 31, 2018 and 7,995 shares as of December 31, 2017) Treasury Stock, Value Altisource equity Non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Components of Income Tax Expense (Benefit) [Table] Components of Income Tax Expense (Benefit) [Table] Schedule of the components of income tax expense attributable to continuing operations for each year presented, including current and deferred tax expense (benefit). Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] 2017 Subsidiary Merger 2017 Subsidiary Merger [Member] On December 27, 2017, two of the Company’s wholly-owned subsidiaries, Altisource Solutions S.à r.l. and Altisource Holdings S.à r.l., merged, with Altisource Holdings S.à r.l. as the surviving entity. Altisource Holdings S.à r.l. was subsequently renamed Altisource S.à r.l. The merger is part of a larger subsidiary restructuring plan designed to simplify the Company’s corporate structure, allow it to operate more efficiently and reduce administrative costs. Income tax provision Components of Income Tax Expense (Benefit) [Line Items] Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Current income tax provision Current Income Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Deferred income tax provision Deferred Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Income tax provision (benefit) Number of wholly-owned subsidiaries merged Number Of Wholly-Owned Subsidiaries Merged Number Of Wholly-Owned Subsidiaries Merged Deferred tax assets, other Operating loss carryforwards, term Operating Loss Carryforwards, Term Operating Loss Carryforwards, Term Valuation allowance Income tax expense, adjustment of deferred tax asset Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Income tax expense, foreign income tax reserves Income Tax Expense (Benefit), Continuing Operations, Foreign Income Tax Reserves Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for certain foreign income tax reserves (and related interest). Decrease in foreign taxes due to tax holidays Income Tax Holiday, Aggregate Dollar Amount Effect on diluted per share due to decrease in foreign tax holiday (in dollars per share) Income Tax Holiday, Income Tax Benefits Per Share Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segment Operating Segments [Member] Other Businesses, Corporate and Eliminations Corporate, Non-Segment [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Mortgage Market Mortgage Market [Member] Represents information pertaining to the Mortgage Market operating segment. Real Estate Market Real Estate Market [Member] Represents information pertaining to the Real Estate Market operating segment. Subsegments [Axis] Subsegments [Axis] Subsegments [Domain] Subsegments [Domain] Servicer Solutions Servicer Solutions [Member] Servicer Solutions Origination Solutions Origination Solutions [Member] Origination Solutions Consumer Real Estate Solutions Consumer Real Estate Solutions [Member] Consumer Real Estate Solutions Real Estate Investor Solutions Real Estate Investor Solutions [Member] Real Estate Investor Solutions Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Revenue recognized when services are performed or assets are sold Transferred at Point in Time [Member] Revenue related to technology platforms and professional services Revenue Related to Technology Platforms and Professional Services [Member] Revenue related to technology platforms and professional services Reimbursable expenses revenue Reimbursable Expenses [Member] Reimbursable Expenses [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] ORGANIZATION Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Receivables [Abstract] Schedule of accounts receivable, net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of revenue [Table] Schedule of revenue [Table] Schedule of Revenue [Table] Type of revenue [Axis] Type of revenue [Axis] Type of revenue [Axis] Type of revenue [Domain] Type of revenue [Domain] [Domain] for Type of revenue [Axis] Service revenue Sales Revenue, Services, Net [Member] Reimbursable expenses Non-controlling interests Non-controlling Interest Revenue [Member] Non-controlling Interest Revenue [Member] Schedule of revenue [Line Items] Schedule of revenue [Line Items] [Line Items] for Schedule of Revenue [Table] Revenue recognized that was included in contract liability at the beginning of the period Contract with Customer, Liability, Revenue Recognized Schedule of estimated useful lives using the straight-line method Schedule of Property Plant and Equipment Useful Life [Table Text Block] Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Schedule of impact of adopting Topic 606 on financial statements Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Commitments and Contingencies Disclosure [Abstract] COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS Commitments and Contingencies Disclosure [Text Block] Document and Entity Information 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 Well-Known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Smaller Reporting Company Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Entity Treasury Stock (in shares) Entity Treasury Stocks Entity Treasury Stocks Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Public Float Entity Public Float Selling, General and Administrative Expense [Abstract] Compensation and benefits Labor and Related Expense Professional services Professional Fees Occupancy related costs Occupancy, Net Amortization of intangible assets Amortization of Intangible Assets Depreciation and amortization Selling, General and Administrative Expense, Depreciation and Amortization Represents the depreciation and amortization of non-operating assets directly related to selling, general and administrative expense during the reporting period. Marketing costs Marketing Expense Other Other Selling, General and Administrative Expense Total Accrued litigation settlement Loss Contingency, Accrual, Current Litigation settlement loss, net Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] SEGMENT REPORTING Segment Reporting Information [Line Items] Gain on sale of business Restructuring charges Income (loss) from operations Total other income (expense), net Total Assets: Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Senior secured term loans Debt Instrument [Line Items] Debt Instrument [Line Items] Gross, long-term debt Less: Debt issuance costs, net Debt Issuance Costs, Net Less: Unamortized discount, net Debt Instrument, Unamortized Discount Net long-term debt Long-term Debt Less: Current portion Long-term debt, less current portion Discontinued Operations and Disposal Groups [Abstract] SALE OF BUSINESS Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Financial Standby Letter of Credit Financial Standby Letter of Credit [Member] Operating Lease Obligations Operating Leased Assets [Line Items] Total operating lease expense, net of sublease income Operating Leases, Rent Expense, Net Sublease income Sublease Income Future minimum payments due, sublease rentals Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Customary lease term Lessee, Operating Lease, Term of Contract Standby letters of credit, number Standby Letters of Credit, Number Number of irrevocable undertakings (typically by a financial institution) held at period end to guarantee payment of a specified financial obligation. Standby letters of credit, amount Guarantor Obligations, Maximum Exposure, Undiscounted Number of office leases Guarantor Obligations, Maximum Exposure, Number Of Office Leases Guarantor Obligations, Maximum Exposure, Number Of Office Leases Operating lease obligations Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Operating lease obligations Operating Leases, Future Minimum Payments Due Income Tax Contingency [Table] Income Tax Contingency [Table] U.S. Income before income taxes and non-controlling interests [Line Items] Income Tax Contingency [Line Items] Domestic - Luxembourg Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign - U.S. and Non-U.S. Income (Loss) from Continuing Operations before Income Taxes, Foreign Total Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Goodwill and Intangible Assets Disclosure [Abstract] Summary of changes in goodwill Schedule of Goodwill [Table Text Block] Schedule of intangible assets, net Schedule of Finite-Lived Intangible Assets [Table Text Block] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Amount of unrecognized tax benefits as of the beginning of the year Unrecognized Tax Benefits Decreases as a result of tax positions taken in a prior period Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Increases as a result of tax positions taken in a prior period Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Increases as a result of tax positions taken in the current period Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Amount of unrecognized tax benefits as of the end of the year Unrecognized tax benefits that would affect the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits, income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Schedule of financial information of segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of premises and equipment, net by country Long-lived Assets by Geographic Areas [Table Text Block] Quarterly Financial Information Disclosure [Abstract] Schedule of unaudited quarterly results Quarterly Financial Information [Table Text Block] Other Liabilities Disclosure [Abstract] Schedule of other non-current liabilities Other Noncurrent Liabilities [Table Text Block] Concentration Risk [Table] Concentration Risk [Table] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] NRZ NRZ [Member] NRZ [Member] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] REALServicing REALServicing [Member] REALServicing [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Ocwen Ocwen Financial Corporation [Member] Represents information pertaining to Ocwen Financial Corporation and its subsidiaries. Highly Correlated - Ocwen Highly Correlated - Ocwen [Member] Portfolios serviced by Ocwen when a party other than Ocwen or NRZ selects Altisource as the service provider. Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue, Segment Sales Revenue, Segment [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Estimate of possible loss Loss Contingency, Estimate of Possible Loss Loss in the period Loss Contingency, Loss in Period Percentage of revenue from largest customer Concentration Risk, Percentage Percentage of loans serviced and subserviced by largest customer's largest client Concentration Risk, Percentage Of Loans Serviced And Subserviced By Largest Customer's Largest Client Concentration Risk, Percentage Of Loans Serviced And Subserviced By Largest Customer's Largest Client Subservice transferred subject MSRs, initial term Subservice Transferred Subject Mortgage Servicing Rights (MSR), Initial Term Subservice Transferred Subject Mortgage Servicing Rights (MSR), Initial Term Escrow and Trust Balances Deposit Assets and Trust Account [Abstract] Amounts held in escrow and trust accounts Escrow Deposit and Trust Account Amounts held in escrow and trust accounts at various financial institutions. Schedule of basic and diluted EPS calculation Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] ACCOUNTS RECEIVABLE, NET Financing Receivables [Text Block] Schedule of the components of selling, general and administrative expenses Schedule of Selling, General and Administrative Expense [Table Text Block] Tabular disclosure of the components of costs related to selling products or services, as well as all other general and administrative expenses. Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Granite Granite [Member] Granite [Member] 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] Non-compete agreements Noncompete Agreements [Member] Trademarks and trade names Trademarks and Trade Names [Member] Customer relationships Customer Relationships [Member] Acquisitions Business Acquisition [Line Items] Purchase price, cash Payments to Acquire Businesses, Gross Accounts receivable, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Prepaid expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Premises and equipment, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, And Liabilities Assumed, Total Assets Business Combination, Recognized Identifiable Assets Acquired, Goodwill, And Liabilities Assumed, Total Assets Accounts payable and accrued expenses Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Current Liabilities Accounts Payable and Accrued Liabilities Amount of accounts payable and accrued liabilities assumed at the acquisition date. Other current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Purchase price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Term B Loans Term B Loans [Member] Represents information pertaining to the term B loans associated with the credit agreement entered into on April 3, 2018. Repayment of debt Repayments of Long-term Debt PREMISES AND EQUIPMENT, NET Property, Plant and Equipment Disclosure [Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES India INDIA Luxembourg LUXEMBOURG Philippines PHILIPPINES Uruguay URUGUAY Premises & equipment, net Revenues from External Customers and Long-Lived Assets [Line Items] Security deposits Deposits Assets, Noncurrent Other Other Assets, Miscellaneous, Noncurrent Total BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Long-term debt, maturities, 2019 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Long-term debt, maturities, 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term debt, maturities, 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term debt, maturities, 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term debt, maturities, 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five Long-term debt, maturities, 2024 Long-term Debt, Maturities, Repayments of Principal after Year Five Long-term debt, maturities, total DISCONTINUATION OF THE BUY-RENOVATE-LEASE-SELL BUSINESS EARNINGS PER SHARE Earnings Per Share [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Company [Axis] Company [Axis] Company Company [Domain] Company [Domain] [Domain] for Company Altisource Residential Corporation Altisource Residential Corporation [Member] Represents information pertaining to Altisource Residential Corporation, a separate publicly-traded company that resulted from the spin-off. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Available-for-sale securities, number of shares Available-for-Sale Securities, Number of Shares Available-for-Sale Securities, Number of Shares Future proceeds from the sale of business, second installment Future Proceeds from Divestiture of Business The future cash inflow associated with the amount to be received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Percentage of revenues (over) Fair value measurements, recurring and nonrecurring Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] ACQUISITION Business Combination Disclosure [Text Block] INVESTMENT IN EQUITY SECURITIES Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Billing Status, Type [Axis] Billing Status, Type [Axis] Receivables Billing Status [Domain] Receivables Billing Status [Domain] Billed Billed Revenues [Member] Unbilled Unbilled Revenues [Member] Accounts receivable, net Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts receivable, gross Accounts Receivable, Gross, Current Less: Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Total Bad debt expense Provision for Doubtful Accounts Schedule of other assets Schedule of Other Assets, Noncurrent [Table Text Block] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Rental Property Management Business Rental Property Management Business [Member] Rental Property Management Business [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total proceeds from the sale of business Disposal Group, Including Discontinued Operation, Consideration Number of installment payments Disposal Group, Number Of Installment Payments Disposal Group, Number Of Installment Payments Proceeds from the sale of business, first installment Proceeds from Divestiture of Businesses Gain on sale of business Schedule of income before income tax, domestic and foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of income tax provision (benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Summary of tax effects of the temporary differences Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of the reconciliation of income tax provision to the Luxembourg statutory income tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Summary of income tax contingencies Summary of Income Tax Contingencies [Table Text Block] Basis of Accounting and Presentation Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable, Net Trade and Other Accounts Receivable, Policy [Policy Text Block] Premises and Equipment, Net Property, Plant and Equipment, Policy [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Intangible Assets, Net Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Long-Term Debt Debt, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Functional Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Defined Contribution 401(k) Plan Pension and Other Postretirement Plans, Policy [Policy Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Share-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Recently Adopted Accounting Pronouncements and Future Adoption of New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Cost of Revenue [Abstract] Schedule of components of cost of revenue Schedule of Cost of Revenue [Table Text Block] Tabular disclosure of the components of cost of revenue. Other current liabilities Other Liabilities, Current [Abstract] Unfunded cash account balances Bank Overdrafts Other Other Sundry Liabilities, Current Total Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Computer hardware and software Office equipment and other PREMISES AND EQUIPMENT, NET Property, Plant and Equipment [Line Items] Premises and equipment, gross Property, Plant and Equipment, Gross Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total Depreciation and amortization expense Depreciation, Depletion and Amortization, Nonproduction Schedule of other income (expense), net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Trademarks and trade names Customer related intangible assets Customer-Related Intangible Assets [Member] Operating agreement Operating Agreement [Member] Represents information pertaining to the operating agreement of the entity. Intellectual property Intellectual Property [Member] Other intangible assets Other Intangible Assets [Member] Weighted average Weighted Average [Member] Intangible Assets, Net Finite-Lived Intangible Assets [Line Items] Estimated useful life Finite-Lived Intangible Asset, Useful Life Gross carrying amount Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net book value Amortization expense for definite lived intangible assets Amortization expense, 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Amortization expense, 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two Amortization expense, 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Amortization expense, 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Amortization expense, 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Restructuring Charges [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring and related cost, expected future cost (approximate) Restructuring and Related Cost, Expected Cost Remaining Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Additional paid-in capital Additional Paid-in Capital [Member] Employee and non employee stock option Employee and Non Employee Stock Option [Member] An arrangement whereby an employee or nonemployee 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. Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Stock Repurchase Program, Current Share Repurchase Program, Current [Member] Represents details concerning the entity's current share repurchase program. Stock Repurchase Programs Share Repurchase Programs [Member] Represents details concerning the entity's share repurchase programs. Market-Based Vesting Based on Stock Price [Member] Represents a share based compensation award with vesting based on the stock price. Market-Based, ordinary performance Vesting Based on Stock Price Ordinary Performance [Member] Represents a share based compensation award with vesting based on the increase in the entity's stock price and classified as ordinary performance. Market-Based, extraordinary performance Vesting Based on Stock Price Extraordinary Performance [Member] Represents a share based compensation award with vesting based on the increase in the entity's stock price and classified as extraordinary performance. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Black-Scholes Black Scholes Options Pricing Model [Member] Represents the information pertaining to Black-Scholes options pricing model, a valuation method used in the computation of fair value of service-based stock options. Binomial Binomial Lattice Model [Member] Represents the information pertaining to Binomial-lattice options pricing model, a valuation method used in the computation of fair value of market-based stock options. Equity And Share-Based Compensation Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Common Stock [Abstract] Common Stock [Abstract] Voting rights per share Common Stock, Number Of Voting Rights Represents the number of voting rights per share owned by the holders of common stock. Equity Incentive Plan [Abstract] Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Maximum number of Altisource share-based awards that can be granted under the Plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based awards available for future grants under the Plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Share Repurchase Program [Abstract] Treasury Stock [Abstract] Number of shares of common stock authorized to be purchased Stock Repurchase Program, Number of Shares Authorized to be Repurchased Percentage of outstanding shares authorized to be repurchased Stock Repurchase Program Percentage of Outstanding Shares Authorized to be Repurchased Represents the percentage of outstanding shares authorized to be repurchased under the stock repurchase plan. Minimum purchase price authorized (in dollars per share) Stock Repurchase Program Minimum Cost Per Share Authorized for Repurchase The minimum cost per share authorized by the entity's board of directors for shares to be repurchased under the stock repurchase plan. Maximum purchase price authorized (in dollars per share) Stock Repurchase Program Maximum Cost Per Share Authorized For Repurchase The maximum cost per share authorized by an entity's Board of Directors for shares to be repurchased under a stock repurchase plan. Stock repurchase program, period in force Stock Repurchase Program, Period in Force Remaining number of shares available for repurchase under the plan (in shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Number of shares of common stock purchased (in shares) Treasury Stock, Shares, Acquired Average purchase price per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Authorized amount (approximately) Stock Repurchase Program, Authorized Amount Capacity available to repurchase common stock under senior secured term loan Stock Repurchase Program Repurchase Capacity Amount Amount of capacity under debt agreement to repurchase common stock as of the balance sheet date. Share-Based Compensation [Abstract] Share-based Compensation [Abstract] Share-based compensation expense Allocated Share-based Compensation Expense Estimated unrecognized compensation costs (in dollars) Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Weighted average remaining requisite service period for stock options over which unrecognized compensation costs would be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share based compensation arrangement by share based payment award estimated forfeiture rate Share Based Compensation Arrangement by Share Based Payment Award Estimated Forfeiture Rate Represents the estimated forfeiture rate applied to determine the amount of compensation expense to be recognized for an equity-based award. Expiration term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Options outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of components of an award Share Based Compensation Arrangement by Share Based Payment Award Number of Components of Award Represents the number of components of vesting of an award. Percentage of compounded annual gain of stock price over exercise price required for the award to vest Share Based Compensation Arrangement by Share Based Payment Award Percentage of Compounded Annual Gain of Stock Price over Exercise Price Required for Award to Vest Represents the percentage of compounded annual gain of stock price over exercise price required for the award to vest. Allowable performance period before expiration date Share-based Compensation Arrangement By Share-based Payment Award, Allowable Performance Period Before Expiration Date Share-based Compensation Arrangement By Share-based Payment Award, Allowable Performance Period Before Expiration Date Stock options granted, approximate (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Weighted average exercise price of stock options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Plan modification, number of stock options affected (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Stock Options Affected Share-based compensation arrangement by share-based payment award, plan modification, number of stock options affected Plan modification, number of employees affected Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Employees Affected Assumptions used to determine the fair value of options as of the grant date Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Risk-free interest rate (%) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected stock price volatility (%) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected option life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Fair value (in usd per share) Share Price Weighted average fair value of stock options granted and total intrinsic value of stock options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted average fair value at grant date per share (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Intrinsic value of stock options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Grant date fair value of stock options that vested Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value SELLING, GENERAL AND ADMINISTRATIVE EXPENSES AND OTHER OPERATING EXPENSES Selling, General and Administrative Expenses Disclosure [Text Block] The entire disclosure of costs related to selling products and services, as well as all other general and administrative expenses. 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] $10.01 — $20.00 Exercise Price Range from Dollars 10.01 to 20.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 10.01 dollars to 20.00 dollars. $20.01 — $30.00 Exercise Price Range from Dollars 20.01 to 30.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 20.01 dollars to 30.00 dollars. $30.01 — $40.00 Exercise Price Range from Dollars 30.01 to 40.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 30.01 dollars to 40.00 dollars. $60.01 — $70.00 Exercise Price Range from Dollars 60.01 to 70.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 60.01 dollars to 70.00 dollars. $70.01 — $80.00 Exercise Price Range from Dollars 70.01 to 80.00 [Member] Exercise Price Range from Dollars 70.01 to 80.00 [Member] $80.01 — $90.00 Exercise Price Range from Dollars 80.01 to 90.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 80.01 dollars to 90.00 dollars. $90.01 — $100.00 Exercise Price Range from Dollars 90.01 to 100.00 [Member] Represents information pertaining to the range of exercise price per share of stock options outstanding and exercisable between 90.01 dollars to 100.00 dollars. $100.01 — $110.00 Exercise Price Range from Dollars 100.01 to 110.00 [Member] Exercise Price Range from Dollars 100.01 to 110.00 [Member] Stock options outstanding and exercisable Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Exercise price, low end of 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 range (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Options outstanding Share Based Compensation Shares Authorized under Stock Option Plans Exercise Price Range Outstanding Options [Abstract] Number (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Weighted average remaining contractual life (in years) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term 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 Share Based Compensation Shares Authorized under Stock Option Plans Exercise Price Range Exercisable Options [Abstract] Number (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Weighted average remaining contractual life (in years) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term 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 Schedule of customer concentration revenue as a percentage of segment and consolidated revenue Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Other Liabilities, Noncurrent [Abstract] Other Liabilities, Noncurrent [Abstract] Income tax liabilities Liability for Uncertainty in Income Taxes, Noncurrent Deferred revenue Contract with Customer, Liability Other non-current liabilities Other Sundry Liabilities, Noncurrent Total Schedule of future minimum lease payments under non-cancelable capital and operating leases with an original term exceeding one year Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of revenue Schedule of revenue [Table Text Block] [Table Text Block] for Schedule of Revenue [Table] Disaggregation of revenue Disaggregation of Revenue [Table Text Block] FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] PREPAID EXPENSES AND OTHER CURRENT ASSETS Other Current Assets [Text Block] Accounts Payable and Accrued Liabilities [Abstract] Accounts Payable and Accrued Liabilities [Abstract] Accounts payable Accounts Payable, Current Accrued salaries and benefits Employee-related Liabilities, Current Accrued expenses - general Accrued Liabilities, Current Income taxes payable Accrued Income Taxes, Current Total INCOME TAXES Income Tax Disclosure [Text Block] Gross profit Income from operations Income (loss) before income taxes and non-controlling interests Net (loss) income Net (loss) income attributable to Altisource Buy-Renovate-Lease-Sell Business Buy-Renovate-Lease-Sell Business [Member] Buy-Renovate-Lease-Sell Business [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] April 3, 2018 Credit Agreement April 3, 2018 Credit Agreement [Member] April 3, 2018 Credit Agreement Line of Credit Line of Credit [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Adjusted Eurodollar Rate Debt Instrument Variable Rate Adjusted Eurodollar Rate [Member] Represents the adjusted Eurodollar rate that is used to calculate the variable interest rate of the debt instrument. Base Rate Base Rate [Member] Debt instrument, face amount Debt Instrument, Face Amount Loss on debt refinancing Write-off of Net Discount and Debt Issuance Costs Write-off of net discount and debt issuance costs in an extinguishment of debt. Long-term debt, maturities, annually thereafter Long-term Debt, Maturities, Repayments Of Principal, Thereafter Long-term Debt, Maturities, Repayments Of Principal, Thereafter Leverage ratio to be maintained under the credit facility covenants Maximum Debt Instrument Covenant Leverage Ratio to Avoid Mandatory Prepayments The maximum leverage ratio required to be maintained to avoid mandatory prepayments under the credit facility covenants. Covenant threshold, leverage ratio Debt Instrument Covenant Leverage Ratio at Which Mandatory Prepayments Increase The maximum leverage ratio at which mandatory prepayments increase under the credit facility covenants. Mandatory prepayments owed Debt Instrument, Mandatory Prepayments Owed Represents the amount of mandatory prepayments owed. Number of incremental lenders (or more) Debt Instrument, Number Of Incremental Lenders Debt Instrument, Number Of Incremental Lenders Debt instrument accordion feature increase in additional borrowings Debt Instrument Accordion Feature, Potential Increase in Additional Borrowings Represents the potential increase in additional borrowings on existing and new debt instruments under accordion feature. Reference rate Debt Instrument, Description of Variable Rate Basis Fixed interest rate base (as a percent) Debt Instrument Fixed Base Rate Represents the fixed rate used in the calculation of the base interest rate of the debt instrument. Interest rate margin (as a percent) Debt Instrument, Basis Spread on Variable Rate Interest rate at the end of the period (as a percent) Debt Instrument, Interest Rate, Effective Percentage Unused commitment fee Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Amount of principal or interest if failed to pay considered as event of default Debt Instrument Amount of Principal or Interest if Failed to Pay Considered as Event of Default Represents the amount of principal or interest, if failed to pay, is considered as event of default under the credit agreement. Amount of debt which results in acceleration of debt if failed to pay considered as event of default Debt Instrument Amount of Debt which Results Acceleration of Debt if Failed to Pay Considered as Event of Default Represents the amount of debt which results in acceleration of debt, if failed to pay, is considered as event of default under the credit agreement. Amount of unbonded, undischarged or unstayed debt under entry by court of one or more judgments for certain period to determine as event of default Debt Instrument Amount of Unbonded undischarged or Unstayed Debt under Entry by Court of One or More Judgments for Certain Period to Determine Event of Default Represents the amount unbonded, undischarged or unstayed debt under entry by a court of one or more judgments for certain period to determine the event of default as per the credit agreement. Extinguishment of debt, amount Extinguishment of Debt, Amount Weighted average discount of par received on early extinguishment of debt Weighted average discount of par received on early extinguishment of debt Percentage discount of par received on early extinguishment of debt - the amount of the discount on the par value of our debt that we received as part of our early extinguishment of debt Gain on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Debt issuance costs, net Accumulated amortization Accumulated Amortization, Debt Issuance Costs Interest on long-term debt Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Common stock Common Stock [Member] Treasury stock, at cost Treasury Stock [Member] Non-controlling interests Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Balance (in shares) Shares, Issued Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Distributions to non-controlling interest holders Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Share-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Cumulative effect of an accounting change Excess tax benefit on stock-based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Exercise of stock options and issuance of restricted shares Stock Issued During Period, Value, Stock Options Exercised and Restricted Shares Issued Value of stock issued as a result of the exercise of stock options and issuance of restricted shares. Treasury shares withheld for the payment of tax on restricted share issuances and stock option exercises Adjustments Related to Tax Withholding for Share-based Compensation Repurchase of shares Treasury Stock, Value, Acquired, Cost Method Balance Balance (in shares) Highly Correlated - NRZ Highly Correlated - NRZ [Member] Portfolios serviced by NRZ when a party other than NRZ selects Altisource as the service provider. Revenue Accounts receivable from largest customer Accounts Receivable, Net Compensation and benefits Cost, Direct Labor Outside fees and services Cost, Outside Fees And Services Cost, Outside Fees And Services Cost of real estate sold Cost, Real Estate Sales Cost, Real Estate Sales Reimbursable expenses Cost, Reimbursable Expenses Cost, Reimbursable Expenses Technology and telecommunications Cost, Technology And Telecommunications Cost, Technology And Telecommunications Depreciation and amortization Cost, Depreciation and Amortization Total SEGMENT REPORTING Segment Reporting Disclosure [Text Block] Reconciliation of Income Tax Provision to the Luxembourg income tax rate Effective Income Tax Rate Reconciliation, Percent [Abstract] Statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent State tax expense Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent Uncertain tax positions Effective Income Tax Rate Reconciliation, Uncertain Taxes, Percent Effective Income Tax Rate Reconciliation, Uncertain Taxes, Percent Unrecognized tax loss Effective Income Tax Rate Reconciliation, Tax Contingency, Domestic, Percent Income tax rate change Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Tax rate differences on foreign earnings Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective tax rate Effective Income Tax Rate Reconciliation, Percent Loss on debt refinancing Expenses related to the purchase of investment in equity securities Expenses related to the purchase of available for sale securities Expenses related to the purchase of equity securities investment classified as available for sale and reflected in the consolidated balance sheet at fair value. Interest income Interest Income, Other Other, net Other Nonoperating Income (Expense) Other The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Amounts exclude: (a) equity loss in affiliate, (b) interest expense, (c) interest income, and (d) change in fair value of put options. Total RESTRUCTURING CHARGES Restructuring and Related Activities Disclosure [Text Block] OTHER NON-CURRENT LIABILITIES Other Liabilities Noncurrent [Text Block] Represents the disclosure pertaining to other non current liabilities. Maintenance agreements, current portion Prepaid Maintenance, Current Represents the current portion of the carrying amount, as of the balance sheet date, of costs paid in advance under maintenance agreements; such amounts will be charged against earnings within one year or the normal operating cycle, if longer. Income taxes receivable Income Taxes Receivable, Current Prepaid expenses Prepaid Expense, Current Other current assets Other Assets, Current Total QUARTERLY FINANCIAL DATA (UNAUDITED) Quarterly Financial Information [Text Block] LONG-TERM DEBT Debt Disclosure [Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Allowance for doubtful accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Valuation allowance for deferred tax assets SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Deductions from asset accounts: Deductions From Asset Accounts [Abstract] Deductions From Asset Accounts [Abstract] Balance at Beginning of Period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Additions, Charged to Expenses SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Additions, Charged to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Balance at End of Period GOODWILL AND INTANGIBLE ASSETS, NET Goodwill and Intangible Assets Disclosure [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill Goodwill [Line Items] Number of acquisitions Business Combinations, Number Of Acquisitions Business Combinations, Number Of Acquisitions Goodwill [Roll Forward] Goodwill [Roll Forward] Balance at the beginning of the period Disposition Goodwill, Written off Related to Sale of Business Unit Write-off Balance at the end of the period SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION Shareholders' Equity and Share-based Payments [Text Block] Weighted average common shares outstanding, basic (in shares) Dilutive effect of stock options, restricted shares and restricted share units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average common shares outstanding, diluted (in shares) (Loss) earnings per share: Earnings Per Share, Basic and Diluted [Abstract] Anti-Dilutive Securities Antidilutive Securities Excluded from Computation of Earning Per Share [Abstract] 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] Options and restricted shares issuable upon achievement of market and performance criteria Options and Restricted Shares Issuable upon Achievement of Certain Market and Performance Criteria [Member] Represents information pertaining to the options and restricted shares issuable upon the achievement of certain market and performance criteria related to common stock price. Options issuable upon achievement of certain market and performance criteria Options Issuable Upon Achievement Of Certain Market And Performance Criteria [Member] Options Issuable Upon Achievement Of Certain Market And Performance Criteria [Member] Anti-dilutive securities Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Excluded from the computation of diluted EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of premises and equipment, net Property, Plant and Equipment [Table Text Block] Schedule of prepaid expenses and other current assets Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Number of options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding at the beginning of the period (in shares) Granted (in shares) 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, Options, Forfeitures in Period Outstanding at the end of the period (in shares) Exercisable at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 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) 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 Outstanding at the end of the period (in dollars per share) 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 Weighted average contractual term (in years) Share Based Compensation Arrangement by Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Weighted average contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate intrinsic value (in thousands) Share Based Compensation Arrangement by Share Based Payment Award Options Intrinsic Value [Abstract] Aggregate intrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Exercisable at the end of the period (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Schedule of Share Based Compensation Shares Authorized under Stock Option Plans by Vesting Price Range [Table] Schedule of Share Based Compensation Shares Authorized under Stock Option Plans by Vesting Price Range [Table] Tabular disclosure of information pertaining to stock options expected to vest, stratified by ranges of vesting prices. Share Based Compensation Shares Authorized under Stock Option Plans by Vesting Price Range [Axis] Share Based Compensation Shares Authorized under Stock Option Plans by Vesting Price Range [Axis] Information by range of vesting prices pertaining to stock options expected to vest. Share Based Compensation Shares Authorized under Stock Option Plans Vesting Price Range [Domain] Share Based Compensation Shares Authorized under Stock Option Plans Vesting Price Range [Domain] Information pertaining to stock options expected to vest, stratified by ranges of vesting prices. $40.01 — $50.00 Vesting Price Range From Dollar 40.01 To 50.00 [Member] Vesting Price Range From Dollar 40.01 To 50.00 [Member] $50.01 — $60.00 Vesting Price Range From Dollar 50.01 To 60.00 [Member] Vesting Price Range From Dollar 50.01 To 60.00 [Member] $60.01 — $70.00 Vesting Price Range From Dollar 60.01 To 70.00 [Member] Vesting Price Range From Dollar 60.01 To 70.00 [Member] $70.01 — $80.00 Vesting Price Range From Dollar 70.01 To 80.00 [Member] Vesting Price Range From Dollar 70.01 To 80.00 [Member] $80.01 — $90.00 Vesting Price Range From Dollar 80.01 To 90.00 [Member] Vesting Price Range From Dollar 80.01 To 90.00 [Member] $90.01 — $100.00 Vesting Price Range From Dollar 90.01 To 100.00 [Member] Vesting Price Range From Dollar 90.01 To 100.00 [Member] $140.01 — $150.00 Vesting Price Range From Dollar 140.01 To 150.00 [Member] Vesting Price Range From Dollar 140.01 To 150.00 [Member] $170.01 — $180.00 Vesting Price Range From Dollar 170.01 To 180 [Member] Vesting Price Range From Dollar 170.01 To 180 [Member] $180.01 — $190.00 Vesting Price Range From Dollar 180.01 To 190.00 [Member] Vesting Price Range From Dollar 180.01 To 190.00 [Member] Over $190.00 Vesting Price Range Over Dollars 190.00 [Member] Vesting Price Range Over Dollars 190.00 [Member] Ordinary performance grants Ordinary Performance Grant [Member] Represents information pertaining to ordinary performance grants, a component of market-based options awarded by the entity to its employees as a form of equity-based compensation. Extraordinary performance grants Extraordinary Performance Grant [Member] Represents information pertaining to extraordinary performance grants, a component of market-based options awarded by the entity to its employees as a form of equity-based compensation. Market prices for market performance options to vest Share Based Compensation Shares Authorized under Stock Option Plans Vesting Price Range [Line Items] Market-based options, vesting price, low end of range (in dollars per share) Share Based Compensation Shares Authorized under Stock Option Plans Vesting Price Range Lower Range Limit Represents the customized low end of range of market prices for the purpose of vesting of stock options. Market-based options, vesting price, high end of range (in dollars per share) Share Based Compensation Shares Authorized under Stock Option Plans Vesting Price Range Upper Range Limit Represents the customized high end of range of market prices for the purpose of vesting of stock options. Market-based options, options expected to vest (in shares) Share Based Compensation Arrangement by Share Based Payment Award Options Expected to Vest Number The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of market prices. Market-based options, weighted average share price (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award Options Expected to Vest Weighted Average Exercise Price Represents the weighted-average exercise price for stock options expected to vest, as of the balance sheet date. Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Unrealized loss on investment in equity securities Unrealized Gain (Loss) on Investments Change in the fair value of acquisition related contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Goodwill write-off from business exit (Note 11) Goodwill, Impairment Loss Share-based compensation expense Share-based Compensation Gain on early extinguishment of debt Amortization of debt discount Amortization of Debt Discount (Premium) Amortization of debt issuance costs Amortization of Debt Issuance Costs Deferred income taxes Deferred Income Tax Expense (Benefit), Cash Flow Impact The amount of the current period cash flow impact of deferred income taxes. Loss on disposal of fixed assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Loss on debt refinancing (Note 14) Changes in operating assets and liabilities, net of effect of acquisition: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Short-term investments in real estate Increase (Decrease) In Short-Term Investments, Real Estate Increase (Decrease) In Short-Term Investments, Real Estate Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Operating Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Other current and non-current liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Additions to premises and equipment Payments to Acquire Property, Plant, and Equipment Acquisition of business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from the sale of business (Note 4) Purchase of investment in equity securities Other investing activities Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Repayments and repurchases of long-term debt Debt issuance costs Payments of Debt Issuance Costs Proceeds from stock option exercises Proceeds from Stock Options Exercised Excess tax benefit on stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Purchase of treasury shares Payments for Repurchase of Common Stock Distributions to non-controlling interests Payments to Noncontrolling Interests Payment of tax withholding on issuance of restricted shares and stock option exercises Payments Related to Tax Withholding for Share-based Compensation Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash, cash equivalents and restricted cash at the beginning of the period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at the end of the period Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Income taxes paid, net Income Taxes Paid, Net Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] (Decrease) increase in payables for purchases of premises and equipment Change in Accounts Payable for Purchase of Premises and Equipment The increase or decrease in accounts payable related to the purchase of premises and equipment. Schedule of long-term debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of maturities of long-term debt Schedule of Maturities of Long-term Debt [Table Text Block] COST OF REVENUE Cost of Revenue [Text Block] The entire disclosure of cost of goods produced and sold and services rendered. Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee Severance and Professional Service Fees Employee Severance And Professional Service Fees [Member] Employee Severance And Professional Service Fees [Member] Unrealized (loss) gain on investment in equity securities Goodwill, written off Net tax benefit Deferred tax assets, net (Loss) income before income taxes and non-controlling interests Net (loss) income Net (loss) income attributable to Altisource (Loss) earnings per share: