Fair Value Disclosures [Abstract] Investment [Table] Investment [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Measured on a Recurring Basis Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Investment [Line Items] Investment [Line Items] Realized/unrealized gain on investments Gain (Loss) on Investments Impairment (reversal) Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Total Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings Realized/unrealized gain on investments, net, from investments transferred into Level 3 during the period Gain (Loss) on Investments Transferred Gain (Loss) on Investments Transferred Receivables [Abstract] REAL ESTATE RELATED AND OTHER LOANS, RESIDENTIAL MORTGAGE LOANS AND SUBPRIME MORTGAGE LOANS Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Schedule of future minimum rental commitments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] ABS - Non-Agency RMBS Residential Mortgage Backed Securities [Member] FNMA/FHLMC (A) US Government Agencies Debt Securities [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Market Quotations (Unobservable) Market Approach Valuation Technique [Member] Internal Pricing Models Internal Pricing Models [Member] Internal Pricing Models [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Estimated Fair Value Estimate of Fair Value Measurement [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate cap Interest Rate Cap [Member] TBAs Other Contract [Member] 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] Assets: Assets [Abstract] Real estate securities Available-for-sale Securities, Debt Securities Real estate securities, pledged as collateral Pledged Assets Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment Derivative assets not treated as hedge Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value Derivative assets total Derivative Asset Accounting Policies [Abstract] Accretion of discount and other amortization Accretion of discount and other amortization Accretion of net discount on securities, loans and other investments Investment Income, Amortization of Discount Amortization of net discount on debt obligations and deferred financing costs Amortization of Deferred Loan Origination Fees, Net Amortization of net deferred hedge gains – debt Amortization of Deferred Hedge Gains, Debt Amortization of Deferred Hedge Gains, Debt Amortization of discount and premium Accretion (Amortization) of Discounts and Premiums, Investments Amortization of leasehold intangibles Amortization of Leased Asset Accretion of membership deposit liability Accretion of membership deposit liability Amount of increase (decrease) in membership deposit liability during the period. Other amortization Other Depreciation and Amortization Real Estate [Abstract] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Owned Properties Real Estate Investment [Member] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Bear Creek Bear Creek [Member] Name of the property. Bradshaw Farm Bradshaw Farm [Member] Name of the property. Brookstone Brookstone [Member] Name of the property. Canyon Oaks Canyon Oaks [Member] Name of the property. Casta Del Sol Casta Del Sol [Member] Name of the property. El Camino El Camino [Member] Name of the property. Forrest Crossing Forrest Crossing [Member] Name of the property. Gettysvue Gettysvue [Member] Name of the property. Lomas Santa Fe (Executive) Lomas Santa Fe [Member] Name of the property. Marbella Marbella [Member] Name of the property. Monterey Monterey [Member] Name of the property. Oakhurst Oakhurst [Member] Name of the property. Oregon Golf Club Oregon Golf Club [Member] Name of the property. Palm Valley Palm Valley [Member] Name of the property. Plantation Plantation [Member] Name of the property. Rancho San Joaquin Rancho San Joaquin [Member] Name of the property. Seascape Seascape [Member] Name of the property. Summitpointe Summitpointe [Member] Name of the property. Sunset Hills Sunset Hills [Member] Name of the property. Tanoan Tanoan [Member] Name of the property. Trophy Club of Apalachee Trophy Club of Apalachee [Member] Name of the property. Trophy Club of Atlanta Trophy Club of Atlanta [Member] Name of the property. Vista Valencia Vista Valencia [Member] Name of the property. Wood Ranch Wood Ranch [Member] Name of the property. Other OtherOwnedPropertyMember Name of the property. Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Woodville, WA Woodville, WA [Member] Geographical area. Woodstock, GA Woodstock, GA [Member] Geographical area. Acworth, GA Acworth, GA [Member] Geographical area. Chico, CA Chico, CA [Member] Geographical area. Mission Viejo, CA Mission Viejo, CA [Member] Geographical area. Oceanside, CA Oceanside, CA [Member] Geographical area. Franklin, TN Franklin, TN [Member] Geographical area. Knoxville, TN Knoxville, TN [Member] Geographical area. Solana Beach, CA Solana Beach, CA [Member] Geographical area. SJ Capistrano, CA SJ Capistrano, CA [Member] Geographical area. Palm Desert, CA Palm Desert, CA [Member] Geographical area. Clayton, CA Clayton, CA [Member] Geographical area. West Linn, OR West Linn, OR [Member] Geographical area. Boise, ID Boise, ID [Member] Geographical area. Irvine, CA Irvine, CA [Member] Geographical area. Aptos, CA Aptos, CA [Member] Geographical area. Milpitas, CA Milpitas, CA [Member] Geographical area. Thousand Oaks, CA Thousand Oaks, CA [Member] Geographical area. Albuquerque, NM Albuquerque, NM [Member] Geographical area. Dacula, GA Dacula, GA [Member] Geographical area. Alpharetta, GA Alpharetta, GA [Member] Geographical area. Valencia, CA Valencia, CA [Member] Geographical area. Sim Valley, CA Sim Valley, CA [Member] Geographical area. Initial cost - land SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land Initial cost - building and improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements Initial cost - furniture, fixtures and equipment Initial cost - furniture, fixtures and equipment Initial cost of furniture, fixtures and equipment for entities with a substantial portion of business acquiring and holding investment real estate. Initial cost - construction In-progress Initial cost - construction In-progress Initial cost of construction in-progress for entities with a substantial portion of business acquiring and holding investment real estate. Costs Capitalized Subsequent to Acquisition SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs Gross Carrying Amount - land and improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Land Gross Carrying Amount - buildings and improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements Gross Carrying Amount - furniture, fixtures and equipment Fixtures and Equipment, Gross Gross Carrying Amount - Construction in-progress Construction in Progress, Gross Gross Carrying Amount - total SEC Schedule III, Real Estate, Gross Accumulated depreciation SEC Schedule III, Real Estate Accumulated Depreciation Net Book Value SEC Schedule III, Real Estate Investment Property, Net FAIR VALUE Fair Value Disclosures [Text Block] Other than Temporary Impairment Losses, Investments [Abstract] IMPAIRMENT (REVERSAL) OTHER-THAN-TEMPORARY-IMPAIRMENT The disclosure of the amount of other than temporary impairment (OTTI) recognized in earnings. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Investments, Debt and Equity Securities [Abstract] Schedule of real estate securities holdings Marketable Securities [Table Text Block] Schedule of real estate securities holdings in an unrealized loss position Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of credit losses on debt securities Schedule of activity related to credit losses on debt securities [Table Text Block] Schedule summarizing the activity related to credit losses on debt securities during the period. Schedule of geographic distribution of collateral securing Newcastle's CMBS and ABS Schedule of geographic distribution of collateral securing Newcastle's CMBS and ABS [Table Text Block] Schedule detailing the geographic distribution of collateral securing company's debt holdings. Schedule of FNMA/FHLMC activity Schedule of Realized Gain (Loss) [Table Text Block] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Prior Period Reclassifications Reclassification, Policy [Policy Text Block] Risks and Uncertainties Risks and Uncertainties [Policy Text Block] The entire policy regarding risks and uncertainties. Use of Estimates Use of Estimates, Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Golf Course Operations Revenue Recognition, Policy [Policy Text Block] Revenue Recognition - Real Estate Securities and Loans Receivable Revenue Recognition - Real Estate Securities and Loans Receivable [Policy Text Block] The entire policy regarding revenue recognition of real estate securities and loans receivable. Impairment Of Securities and Loans Impairment Of Securities and Loans [Policy Text Block] The entire policy regarding impairment of securities and loans. Interest Expense Interest Expense, Policy [Policy Text Block] Operating Expenses Lease, Policy [Policy Text Block] Deferred Costs Deferred Charges, Policy [Policy Text Block] Derivatives and Hedging Activities Derivatives, Policy [Policy Text Block] Management Fees to Affiliate Management Fees to Affiliate [Policy Text Block] The entire policy regarding management fees to be paid to affiliates. Acquisition Accounting Business Combinations Policy [Policy Text Block] Investments in Real Estate, Net Investments in Real Estate, Net [Policy Text Block] Disclosure of accounting policy for investments in real estate. Intangibles Intangible Assets, Finite-Lived, Policy [Policy Text Block] Impairment of Real Estate and Finite-lived Intangible Assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Membership Deposit Liabilities Membership Deposit Liabilities [Policy Text Block] Membership Deposit Liabilities [Policy Text Block] Investment in Real Estate Securities Investment, Policy [Policy Text Block] Loans Held-for-Sale Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block] Other Investment Equity Method Investments, Policy [Policy Text Block] Investment in CDO Servicing Rights Investment in CDO Servicing Rights [Policy Text Block] Disclosure of accounting policy for investments in CDO servicing rights. Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Repurchase Agreements Repurchase and Resale Agreements Policy [Policy Text Block] Cash and Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable, Net Receivables, Policy [Policy Text Block] Inventory Inventory, Policy [Policy Text Block] Accounts Payable, Accrued Expenses and Other Liabilities Accounts Payable, Accrued Expenses and Other Liabilities [Policy Text Block] The company's policy for accounting for accounts payable, accrued expenses adn other liabilities. Options Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Quarterly Financial Information Disclosure [Abstract] SUMMARY OF QUARTERLY CONSOLIDATED FINANCIAL INFORMATION (UNAUDITED) Quarterly Financial Information [Text Block] Income Tax Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] TRSs [Member] TRSs [Member] Information pertaining to TSRs. New Residential Spin-Off New Residential Spin-Off [Member] Information pertaining to the New Residential Spin-Off. New Media Spin-Off New Media Spin-Off [Member] Information pertaining to the New Media Spin-Off. New Senior Spin-Off Subsidiary Issuer [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal and State Tax Authority Domestic Tax Authority [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Repurchase of debt Repayments of Debt Gain on extinguishment of debt Extinguishment of Debt, Gain (Loss), Net of Tax GAAP gain GAAP gain The taxable portion of the gain recognized on the repurchase of CDO debt and junior subordinated notes. Face value of debt repurchased related to GAAP portion Face value of debt repurchased related to GAAP portion The face value of repurchased CDO debt and junior subordinated notes for which the gain is GAAP gain. Debt cancelled in securitization Debt Instrument, Decrease, Forgiveness Net operating loss carryforwards Operating Loss Carryforwards Net operating loss carryforwards expiration Net operating loss carryforwards expiration Expiration date of net operating loss carryforward in PnYnMnDTnHnMnS' format. Income tax expense (benefit) Income Tax Expense (Benefit) Goodwill and Intangible Assets Disclosure [Abstract] Golf Investments Golf Investments [Member] Information pertaining to investments in golf facilities. 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] Trade name Trade Names [Member] Leasehold Intangibles Leasehold Intangibles Information pertaining to Leashold intangibles. Management contracts Contractual Rights [Member] Internally-developed software Software Development [Member] Membership base Membership Base Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships. Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Carrying Value Finite-Lived Intangible Assets, Net Nonamortizable liquor licenses Indefinite-Lived License Agreements Total intangibles, Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Total intangibles, Net Carrying Value Intangible Assets, Net (Excluding Goodwill) Amortization of Intangible Assets Amortization of Intangible Assets Schedule of real estate and other related loans, residential mortgage loans and subprime mortgage loans Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of large loans Schedule of large loans [Table Text Block] Tabular disclosure of loans that are individually grater than 3% of the total current carrying value of loans held for sale. Schedule of real estate related loans by maturity Schedule of real estate related and other loans by maturity [Table Text Block] Schedule summarizing real estate loans by maturity date. Schedule of activity in carrying value of real estate related and other loans and residential mortgage loans Schedule of activity in carrying value of real estate related and other loans and residential mortgage loans [Table Text Block] Schedule detailing activity in the carrying value of real estate loans and residential mortgage loans. Rollforward of loss allowance for real estate related and other loans and residential mortgage loans Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of geographic distribution of real estate related and other loans and residential mortgage loans Schedule of geographic distribution of real estate related and other loans and residential mortgage loans [Table Text Block] Tabular disclosure of the geographic distribution of real estate loans, residential mortgage loans and subprime mortgage loans. Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Golf Golf Information pertaining to the Golf business segment. Lease Arrangement, Type [Axis] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Domain] Lease Arrangement, Type [Domain] Property Under Operating Lease Property Under Operating Lease [Member] Property Under Operating Lease [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Golf Carts and Equipment Golf Carts and Equipment [Member] Golf Carts and Equipment [Member] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Other restricted cash - traditional golf Collateral for Golf Lease Obligations [Member] Category of cash or cash equivalent items which are restricted as to withdrawal or usage. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Operating lease term Lessee Leasing Arrangements, Operating Leases, Term of Contract Regulatory bonds outstanding Regulatory bonds outstanding The amount of regulatory bonds outstanding as of the balance sheet date. Useful life of property under operating leases Property, Plant and Equipment, Useful Life Operating leases, rent expense Operating Leases, Rent Expense Aggregate monthly expense Operating Leases, Rent Expense, Monthly Operating Leases, Rent Expense, Monthly Written notice period to cancel lease Lessee Leasing Arrangements, Operating Leases, Notice Period for Cancellation of Lease Lessee Leasing Arrangements, Operating Leases, Notice Period for Cancellation of Lease Membership deposit term Membership deposit term The number of years after that membership deposits are fully refundable in 'PnYnMnDTnHnMnS' format. Membership deposits, face amount Deferred Revenue, Noncurrent Restricted cash Restricted Cash and Cash Equivalents Discontinued Operations and Disposal Groups [Abstract] Schedule of results of operations from discontinued operations Disposal Groups, Including Discontinued Operations [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Number of Options Number of Options Number of Options Number of Options [Roll Forward] Number of Options [Roll Forward] Beginning Balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Ending Balance (in shares) Weighted Average Strike Price Weighted Average Strike Price Weighted Average Strike Price Weighted Average Strike Price [Roll Forward] Weighted Average Strike Price [Roll Forward] Beginning Balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Ending Balance (in dollars per share) Weighted Average Life Remaining Weighted Average Life Remaining Exercisable at December 31, 2016, Number of Options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable at December 31, 2016, Weighted Average Strike Price (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted Average Life Remaining (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted Average Life Remaining (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Segment Reporting [Abstract] Number of reportable segments Number of Reportable Segments Number of premier private and public properties in United States Number of Real Estate Properties Number of States in which Entity Operates Number of States in which Entity Operates Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series B Preferred Stock Series B Preferred Stock [Member] Series C Preferred Stock Series C Preferred Stock [Member] Series D Preferred Stock Series D Preferred Stock [Member] Statement [Line Items] Statement [Line Items] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Preferred stock, dividend rate (as percent) Preferred Stock, Dividend Rate, Percentage Preferred stock liquidation preference (in dollars per share) Preferred Stock, Liquidation Preference Per Share 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 Stockholders' Equity Note [Abstract] Numerator for basic and diluted earnings per share: Numerator for basis and diluted earnings per share: Income from continuing operations after preferred dividends and noncontrolling interest Income from continuing operations after preferred dividends and noncontrolling interests Net income (loss) from continuing operations after adjustments for dividends on preferred stock and noncontrolling interests. Income (loss) from discontinued operations, net of tax - Note 3 Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income Applicable To Common Stockholders Net Income (Loss) Available to Common Stockholders, Basic Denominator: Denominator: Denominator for basic earnings per share - weighted average shares Weighted Average Number of Shares Outstanding, Basic Effect of dilutive securities Effect of dilutive securities Options Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Denominator for diluted earnings per share - adjusted weighted average shares Weighted Average Number of Shares Outstanding, Diluted Basic earnings per share: Earnings Per Share [Abstract] Income from continuing operations per share of common stock, after preferred dividends and noncontrolling interest (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Income (loss) from Discontinued Operations per share of Common Stock, basic (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Income Applicable to Common Stock, per share (in dollars per share) Earnings Per Share, Basic Diluted earnings per share: Earnings Per Share, Diluted [Abstract] Income from continuing operations per share of common stock, after preferred dividends and noncontrolling interest (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Income (loss) from Discontinued Operations per share of Common Stock, diluted (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Income Applicable to Common Stock, per share (in dollars per share) Earnings Per Share, Diluted 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 Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Voluntary Filer Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus INCOME TAXES Income Tax Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Real Estate Related and other Loans Total Real Estate Related and Other Loans [Member] The company's total real estate related and other loans Residential Loans Residential Portfolio Segment [Member] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] Real Estate Real Estate [Member] Other Financing Receivable [Member] Residential Mortgage Loans Residential Mortgage [Member] Northeastern U.S. Northeastern US [Member] The geographic distribution of collateral to securities holdings located in the Northeastern United States. Southeastern U.S. Southeastern US [Member] The geographic distribution of collateral to securities holdings located in the Southeastern United States. Foreign Foreign [Member] The geographic distribution of collateral to securities holdings located in foreign locations. Other Other Locations [Member] The geographic distribution of collateral to securities holdings located in other locations. Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Outstanding Face Amount Mortgage Loans on Real Estate, Face Amount of Mortgages Percentage of loans (as percent) Percentage of loans Percentage of outstanding loans presented per geographic location. Schedule of Restricted Cash and Cash Equivalents [Table] Schedule of Restricted Cash and Cash Equivalents [Table] CDO bond sinking funds Cash [Member] CDO trustee accounts CDO Trustee Accounts [Member] Category of cash or cash equivalent items which are restricted as to withdrawal or usage. Derivative margin accounts Derivative Margin Accounts [Member] Category of cash or cash equivalent items which are restricted as to withdrawal or usage. Restricted cash for construction-in-progress Restricted Cash, Construction in Progress [Member] Restricted Cash, Construction in Progress [Member] Restricted Cash and Cash Equivalents Items [Line Items] Restricted Cash and Cash Equivalents Items [Line Items] Transactions With Affiliates And Affiliated Entity [Abstract] Transactions With Affiliates And Affiliated Entity [Abstract] TRANSACTIONS WITH AFFILIATES AND AFFILIATED ENTITIES Related Party Transactions Disclosure [Text Block] Schedule of carrying value and estimated fair value of assets and liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of assets and liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of quantitative information about significant unobservable inputs Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Schedule of change in fair value of Level 3 investments Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of gains losses on fair value of real estate securities Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] Schedule of fair value for real estate related and other loans and residential mortgage loans held for sale Schedule of fair value for real estate related and other loans a held-for-sale [Table Text Block] Fair value measurements for real estate related loans and other loans held for sale. Schedule of amounts used in computing basic and diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of shares of common stock issued in connection with public offerings Schedule of Stockholders Equity [Table Text Block] Schedule of outstanding options Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of outstanding options summary Schedule of outstanding options summary [Table Text Block] Tabular summary disclosure of the number of share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Summary of Drive Shack's outstanding options Summary of outstanding options [Table Text Block] Tabular disclosure of the following for outstanding share options: the grant date, number exerciseable, weighted-average strike price, aggregate intrinsic value, and grant date fair value. Schedule of options issued Schedule of Options Issued [Table Text Block] Schedule of Options Issued [Table Text Block] Schedule of assigned options to Fortress's employees Schedule of assigned options to Fortress's employees [Table Text Block] Tabular disclosure of stock options assigned Fotress's employees:including date of grant, range of strike prices and total unexercised options. Derivative [Table] Derivative [Table] Real Estate Investment with a Non-Controlling Interest Real Estate Investment with a Non-Controlling Interest [Member] Real Estate Investment with a Non-Controlling Interest [Member] Membership base Lower Range Upper Range Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Hedging derivative Designated as Hedging Instrument [Member] Not designated as hedging instrument Not Designated as Hedging Instrument [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Forward Contracts Forward Contracts [Member] Position [Axis] Position [Axis] Position [Domain] Position [Domain] Short Short [Member] Non-consolidated CDO Securities Non-consolidated CDO Securities [Member] Non-consolidated securities collateralized by a pool of assets. NCT 2013-VI Class I-MM-2 NCT 2013-VI Class I-MM-2 [Member] NCT 2013-VI Class I-MM-2 [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] CDO VI CDO VI [Member] Debt obligations (bonds payable) to CDO VI. Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] VIEs Variable Interest Entity, Primary Beneficiary [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Real Estate Securities Available-for-sale Securities [Member] CDO Bonds Payable CDO Bonds Payable [Member] CDO Bonds Payable [Member] Other Bonds Payable Other Bonds Payable [Member] Other Bonds Payable [Member] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for Bad Debts Allowance for Doubtful Accounts [Member] Derivative [Line Items] Derivative [Line Items] Consolidation percentage (as percent) Consolidation percentage The ownership percentage in subsidiaries and other investment entities for which Newcastle will consolidate results and balances into its parent company financial statements. Equity method investment Equity Method Investments Refundable term for initiation fees Refundable term for initiation fees Initiation fees refundable term. Amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Number of days past due Number of days past due Number of days past due. Number of instruments held Derivative, Number of Instruments Held Fair value of derivative instrument Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net Notional amount Derivative, Notional Amount Margin calls Margin Deposit Assets Ownership in equity investment (as percent) Equity Method Investment, Ownership Percentage Other than temporary impairment Equity Method Investment, Other than Temporary Impairment Acquisition of servicing rights Payments To Acquire CDO Servicing Rights The cash outflow to obtain servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting. Amortization of servicing rights Amortization of Mortgage Servicing Rights (MSRs) Mortgage servicing rights (MSR) impairment Mortgage Servicing Rights (MSR) Impairment (Recovery) Servicing assets Servicing Asset Face amount of securities sold Face amount of securities sold The stated principal amount of debt securities sold during the period. Number of securities sold Number of Securities Sold Number of Securities Sold Proceeds from sale of investments Proceeds from Sale of Available-for-sale Securities Interest in VIE (as percent) Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Redemption price as percentage of principal amount redeemed (as percent) Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Carrying amount of VIE Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net CDO bonds payable Secured Debt Other bonds and notes payable Other Long-term Debt Reclassification of net realized gain on deconsolidation of CDO VI Other Comprehensive Income (Loss), Reclassification Adjustment from Deconsolidation, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from Deconsolidation, Net of Tax Gain on sale of securities Available-for-sale Securities, Gross Realized Gain (Loss) VIE assets Variable Interest Entity, Consolidated, Carrying Amount, Assets VIE liabilities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Allowances for uncollectable amounts Allowance for Doubtful Accounts Receivable EQUITY AND EARNINGS PER SHARE Stockholders' Equity Note Disclosure [Text Block] DISCONTINUED OPERATIONS Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Total revenues Revenues Total operating costs Operating Expenses Operating income (loss) Operating Income (Loss) Total other income (expense) Nonoperating Gains (Losses) Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income from discontinued operations Preferred dividends Preferred Stock Dividends, Income Statement Impact Net loss (income) attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Income (loss) applicable to common stock, per share Income Applicable to Common Stock, per share Heading for income/loss per share of common stock. Income Applicable to Common Stock (in dollars per share) Income Applicable to Common Stock (in dollars per share) Income from discontinued operations per share of common stock Income (Loss) from Discontinued Operations per share of Common Stock Basic (in dollars per share) Diluted (in dollars per share) Weighted average number of shares of common stock outstanding Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Weighted Average Number of Shares of Common Stock Outstanding, basic (in shares) Weighted Average Number of Shares of Common Stock Outstanding, diluted (in shares) 2017 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Total FiniteLivedIntangibleAssetsAmortizationExpenseTotal Total amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized. Debt Investments Debt Investments [Member] Debt Investments [Member] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Subprime Subprime [Member] Subprime Mortgage Loans Subject to Call Option Subprime Mortgage Loans Subject to Call [Member] Financing arrangement that represents a contractual right to receive money either on demand or on fixed or determinable dates related to subprime residential financing. Subject to call options. Unlevered real estate securities Unlevered Real Estate Securities [Member] Specific investment and debt holdings related to unlevered real estate securities. Levered real estate securities Levered Real Estate Securities [Member] Specific investment and debt holdings related to real estate securities. Real estate related and other loans Real Estate Related and Other Loans [Member] Specific investment and debt holdings related to real estate securities. Other investments Other Investments [Member] Mezzanine Loans Mezzanine Loans [Member] The company's mezzanine real estate related loans holdings. Corporate Loans Bank Loan Obligations [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Held-for-sale Disposal Group, Held-for-sale, Not Discontinued Operations [Member] Principal amount on investment Investment Owned, Balance, Principal Amount Investments Carrying Value Investments Face amount of debt Debt Instrument, Face Amount Debt Carrying Value Debt Carrying Value Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. Prior to inter-segment elimination, as presented in segment reporting disclosures. Number of securities Investment Owned, Balance, Contracts Face amount of excluded real estate securities Excluded from face amount of unlevered real estate securities Face amount of unlevered real estate securities excluded from presentation. Loan Count Loan Count Indicates the number of mortgages under each classification. Carrying Value Loans and Leases Receivable, Net Amount Outstanding face amount Valuation Allowance (Reversal) Provision for Loan and Lease Losses Weighted Average (as percent) Weighted Average Yield Weighted average of all yield rates for each asset type. Wtd Avg Coupon (as percent) Mortgage Loans on Real Estate, Interest Rate Weighted Average Life (Years) Weighted Average Life (Years) Weighted average of the remaining years to maturity for each asset type. Floating Rate Loans as a % of Face Amount (as percent) Floating Rate Loans as a % of Face Amount Percentage comparing floating rate loans against the stated principal amount of outstanding investments in real estate related loans. Delinquent Face Amount Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans Derivative Instruments and Hedging Activities Disclosure [Abstract] Non-hedge derivatives Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash flow hedges Cash Flow Hedging [Member] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification from AOCI into income/earnings Reclassification out of Accumulated Other Comprehensive Income [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Realized/unrealized (gain) loss on investments Gain (Loss) on Investments [Member] Interest expense Interest Expense [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Net unrealized gain (loss) on derivatives designated as cash flow hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Interest rate Interest Rate Contract [Member] Linked transactions Linked Transactions [Member] Information pertaining to Linked Transaction Derivatives. Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract] Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract] Loss immediately recognized at de-designation Gain (Loss) Immediately Recognized At Dedesignation Gain (Loss) Immediately Recognized At Dedesignation Loss recognized on termination of derivative instruments Gain (loss) recognized on termination of hedge The amount of net gain (loss) reclassified into earnings when interest rate cash flow hedge is terminated. Deferred hedge gain reclassified from AOCI into earnings Deferred Hedge Gain Loss Reclassified From AOCI Into Earnings Deferred gain (loss) of derivative instruments from accumulated other comprehensive income into earnings for derivative instruments designated and qualifying as hedging instruments. Amount of loss reclassified from AOCI into income (effective portion) Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion Amount of unrealized loss recognized in Other Comprehensive Income on derivatives (effective portion) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Unrealized gain on interest rate derivatives Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments Gain recognized related to non-hedge Gain (Loss) on Sale of Derivatives Loss recognized related to linked transactions Derivative, Gain (Loss) on Derivative, Net Unrealized (gain) loss recognized related to TBAs Unrealized Gain (Loss) on Derivatives Schedule of Investments [Table] Schedule of Investments [Table] Traditional golf properties Debt and equity securities Securities Investment [Member] Oregon and California Oregon and California [Member] Oregon and California [Member] New Jersey NEW JERSEY Schedule of Investments [Line Items] Schedule of Investments [Line Items] Valuation allowance (reversal) on loans (B) Provision for Loan, Lease, and Other Losses Total impairment (reversal) Other than Temporary Impairment Losses, Investments Impairment of assets held for use Impairment of Long-Lived Assets Held-for-use Real estate properties Impairment of assets held for sale Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down Debt Disclosure [Abstract] DEBT OBLIGATIONS Debt Disclosure [Text Block] Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Provision at the statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Non-taxable REIT income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Permanent items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent State and local taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Valuation allowance (reversal) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Other Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent Total provision (benefit) Effective Income Tax Rate Reconciliation, Percent Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Underwriter Underwriter [Member] Information pertaining to underwriter. Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Principals of Fortress Principals of Fortress [Member] Information pertaining to Principals of Fortress, Newcastle's manager. Manager Management [Member] Class of Stock [Line Items] Class of Stock [Line Items] Number of Shares Issued (in shares) Stock Issued During Period, Shares, New Issues Price per Share (in dollars per share) Shares Issued, Price Per Share Net proceeds Proceeds from Issuance of Common Stock Options, Number of Shares (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Options, Grant Date Strike Price (in dollars per share) Options, Grant Date Value Grant date value The grant date fair value for share based compensation arrangement option grants in the period. INVESTMENTS IN REAL ESTATE, NET OF ACCUMULATED DEPRECIATION Real Estate Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Building and improvements Building and Building Improvements [Member] Capital Leases - equipment Assets Held under Capital Leases [Member] Furniture, fixtures and equipment Furniture and Fixtures [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Estimated useful lives Schedule of debt obligations and related hedges Schedule of Debt [Table Text Block] Schedule of future minimum lease payments under capital leases Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] Schedule of contractual maturities of debt obligations Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Residential mortgage loans Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Loans and Leases Receivable [Roll Forward] Loans and Leases Receivable [Roll Forward] Loans and Leases Receivable [Roll Forward] Carrying value Purchases / additional fundings Mortgage Loans on Real Estate, New Mortgage Loans Interest accrued to principal balance Mortgage Loans on Real Estate, Other Additions Principal pay downs Mortgage Loans on Real Estate, Collections of Principal Sales Mortgage Loans on Real Estate, Cost of Mortgages Sold Transfer to held-for-sale Elimination after restructure-Golf The amount of reductions in principal on mortgage loans due to the elimination of debt after the Golf Restructure. Valuation (allowance) reversal on loans Accretion of loan discount and other amortization Mortgage Loans on Real Estate, Amortization of Premium Loss on settlement of loans Mortgage Loans on Real Estate, Loss on Settlement on Loans Mortgage Loans on Real Estate, Loss on Settlement on Loans Other Mortgage Loans on Real Estate, Period Increase (Decrease) Carrying Value CMBS CMBS [Member] Company-identified securities holdings type of commercial mortgage backed conduit securities holdings. ABS-Small Business Loans ABS-Franchise [Member] Securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets for example, but not limited to, credit card receivables, car loans, recreational vehicle loans, and mobile home loans for franchise vehicles. Debt securities Debt Securities [Member] CDO Collateralized Debt Obligations Investment [Member] Securities collateralized by a pool of loans. Equity Securities Equity Securities [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Total Securities, Available-for-Sale Real Estate Securities Available For Sale [Member] The amount of real estate securities available for sale, as depicted on the company's schedule of carrying value and fair value. Total Securities, Pledged as Collateral (F) Securities Pledged as Collateral [Member] Unrealized loss on real estate securities, intent-to-sell, reclassified from AOCI into income Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest, Unrealized Loss on Securities [Member] Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest, Unrealized Loss on Securities [Member] Reclassification from AOCI into net income Outstanding Face Amount Before Impairment - Amortized Cost Basis Before Impairment - Amortized Cost Basis Amortized Cost basis of real estate securities before any impairment charges. Other Than Temporary Impairment - Amortized Cost Basis Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Amortized Cost Basis Available-for-sale Debt Securities, Amortized Cost Basis Gains-Gross Unrealized Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Losses- Gross Unrealized Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Number of Securities Weighted Average Rating Debt Instrument, Credit Rating Weighted Average Coupon (as percent) Weighted Average Coupon Weighted average of all coupon rates for each asset type. Weighted Average Principal Subordination (as percent) Weighted Average Principal Subordination Weighted average of all principal subordination rates for all securities holdings in each asset type. Realized/unrealized (gain) loss on investments Total outstanding face amount of fixed rate securities Total outstanding face amount of fixed rate securities Total outstanding face amount of all the company's holdings of fixed rate securities. Total outstanding face amount of floating rate securities Total outstanding face amount of floating rate securities Total outstanding face amount of all the company's holdings of floating rate securities. Equity [Abstract] Management employees Management Employees [Member] Information perataining to the number of the company's outstanding stock options held by the manager's employoees at period end. Directors Director [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Option Employee Stock Option [Member] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] Issued Prior to 2011 Issued Prior to 2011 [Member] Information pertaining to stock options issued prior to 2011. Prior to 2008 Prior to 2008 Date or year of grant of equity-based compensation. Oct-12 Oct-12 Date or year of grant of equity-based compensation. Sep-13 Sep-13 Date or year of grant of equity-based compensation. 2014 2014 Date or year of grant of equity-based compensation. 2015 Date of Grant 30 [Member] Date of Grant 30 [Member] 2016 Date of Grant 17 [Member] Date of Grant 17 [Member] Mar-11 Mar-11 Date or year of grant of equity-based compensation. Sep-11 Sep-11 Date or year of grant of equity-based compensation. Apr-12 Apr-12 Date or year of grant of equity-based compensation. May-12 May-12 Date or year of grant of equity-based compensation. Jul-12 Jul-12 Date or year of grant of equity-based compensation. Jan-13 Jan-13 Date or year of grant of equity-based compensation. Feb-13 Feb-13 Date or year of grant of equity-based compensation. Jun-13 Jun-13 Date or year of grant of equity-based compensation. Nov-13 Nov-13 Date or year of grant of equity-based compensation. Aug-14 Aug-14 Date or year of grant of equity-based compensation. Strike price adjustment for dividends (in dollars per share) Strike price adjustment for dividends Adjustment to strike price of options during the period due to a portion of dividends deemed as return of capital. Grant Date Strike Price (in dollars per share) Exercised (in shares) Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Options forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Risk free rate (as percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Dividend yield (as percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Volatility (as percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Investments in senior housing real estate, net Investments in senior housing real estate, net Period change in the balance of investments in senior housing real estate, net due to spin-offs. Property, plant and equipment, net Property, plant and equipment Period change in the balance of property, plant and equipment, net due to spin-offs. Goodwill and intangibles, net Goodwill and intangibles, net Period change in the balance of goodwill and intangibles, net due to spin-offs. Restricted cash SpinOffReductionRestrictedCash Period change in the balance of restricted cash due to spin-offs. Receivables and other assets SpinOffReductionReceivablesOtherAssets Period change in the balance of receivables and other assets due to the spin-off of New Residential. Mortgage notes payable Mortgage notes payable Period change in the balance of mortage notes payable due to spin-offs. Credit facilities - media Credit facilities, media Period change in the balance of credit facilities due to spin-offs. Accrued expenses and other liabilities SpinOffReductionAccruedLiabilities Period change in the balance of accrued expenses and other liabilities due to the spin-off of New Residential. Restricted Cash activity: Restricted Cash activity: Restricted cash generated from sale of securities Restricted cash generated from sale of securities The net cash inflow for the increase associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. These funds are generated from the sale of securities. Restricted cash generated from sale of loans Restricted cash generated from sale of loans The net cash inflow for the increase associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. These funds are generated from the sale of loans. Restricted cash generated from pay downs on securities and loans Restricted cash generated from paydowns on securities and loans The net cash inflow for the increase associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. These funds are generated from the paydown of securities and loans. Restricted cash used for repayments of CDO and other bonds payable Restricted cash used for repayments of CDO bonds payable The net cash outflow for the decrease associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. These funds were used for repayments of CDO bonds payable. CDO VI deconsolidation: Supplemental non-cash investing and financing activities relating to CDOs Real estate securities Real Estate Securities Real Estate Securities Restricted cash Restricted Cash Restricted Cash CDO and other bonds payable CDO and Other Bonds Payable CDO and Other Bonds Payable Rollforward of investments in real estate Rollforward of investments in real estate Gross Carrying Amount Gross Carrying Amount Balance at beginning of year Additions: Additions: Acquisitions of real estate SEC Schedule III, Real Estate, Other Acquisitions Improvements SEC Schedule III, Real Estate, Improvements Disposals: Disposals: Disposal of long-lived assets SEC Schedule III, Real Estate, Other Deductions Impairments SEC Schedule III, Real Estate, Write-down or Reserve, Amount Transferred to assets held-for-sale Real Estate, Transfers to Assets Held-for-sale Real Estate, Transfers to Assets Held-for-sale Balance at end of year Accumulated Depreciation Accumulated Depreciation Balance at beginning of year Additions: Additions1Abstract Depreciation expense SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense Disposals: Disposals1Abstract Disposal of long-lived assets SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold Impairments Real Estate Accumulated Depreciation, Impairments Real Estate Accumulated Depreciation, Impairments Transferred to assets held-for-sale Real Estate Accumulated Depreciation, Transfers Real Estate Accumulated Depreciation, Transfers Balance at end of year Total debt securities in an unrealized loss position Securities in an Unrealized Loss Position [Member] Real estate securities in an unrealized loss position. Less Than Twelve Months Securities in an Unrealized Loss Position Less than Twelve Months [Member] Real estate securities in an unrealized loss position for less than twelve months. Twelve or More Months Securities in an Unrealized Loss Position Greater than Twelve Months [Member] Real estate securities in an unrealized loss position for greater than twelve months. Before Impairment - Amortized Cost Basis AvailableForSaleAmortizedCostBasisBeforeImpairment Amortized Cost basis of real estate securities before any impairment charges. Carrying value - less than twelve months Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Real estate securities Number of Securities Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Weighted average coupon rate of loans (as percent) Weighted Average Maturity (Years) Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] CDO VIII CDO VIII Bonds Payable [Member] Debt obligations (bonds payable) to CDO VIII. CDO IX CDO IX Bonds Payable [Member] Debt obligations (bonds payable) to CDO IX. Mezzanine Note Payable Mezzanine Note Payable [Member] Mezzanine Note Payable [Member] Golf Credit Facilities Total Golf Credit Facilities [Member] Information pertaining to debt related to total Golf credit facilities. First Lien Loan Golf First Lien Loan [Member] Information pertaining to debt related to Golf First Lien Loan. Second Lien Loan Golf Second Lien Loan [Member] Information pertaining to debt related to Golf Second Lien Loan. Golf Loans Golf [Member] Golf [Member] Vineyard II Golf Vineyard II [Member] Information pertaining to debt related to Golf Vineyard II financing facilities. Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Capital leases - equipment Equipment [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Repayments of debt obligations Repayments of Other Debt Repayments of repurchase agreements Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Average price percentage - purchases (as percent) Average price percentage - purchases The average price at which securities were purchased, depicted as a percentage of the original purchase price. Repayments of debt Repayments of Other Long-term Debt Debt extinguished Extinguishment of Debt, Amount Gain on extinguishment of debt Gain (Loss) on Extinguishment of Debt Basis spread (as percent) Debt Instrument, Basis Spread on Variable Rate Number of debt instruments Debt Instruments, Number of Debt Instruments Debt Instruments, Number of Debt Instruments Payments to acquire investments Payments to Acquire Other Investments Payment for repurchase agreement Repayments of Debt, Non-cash Financing Repayments of Debt, Non-cash Financing Number of real estate properties Effective interest rate (as percent) Debt Instrument, Interest Rate, Effective Percentage Gain (Loss) Variable rate (as percent) Debt Instrument, Variable Rate Debt Instrument, Variable Rate Debt term Debt Instrument, Term Number of renewals Debt Instruments, Number Of Renewals Debt Instruments, Number Of Renewals Renewal period Debt Instruments, Renewal Period Debt Instruments, Renewal Period Rounds of golf Rounds of golf The number of rounds of golf played as of period end date. Achievement period Period to Achieve Rounds of Golf Period to Achieve Rounds of Golf Lease term Lease term Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. REAL ESTATE SECURITIES Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Group Name [Domain] Discontinued Operations Discontinued Operations [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] Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Revenues OperatingRevenuesAbstract Media income Disposal Group, Including Discontinued Operation, Media Income Disposal Group, Including Discontinued Operation, Media Income Rental income Disposal Group, Including Discontinued Operation, Rental Income Care and ancillary income Disposal Group, Including Discontinued Operation, Care and Ancillary Income Disposal Group, Including Discontinued Operation, Care and Ancillary Income Total revenues Disposal Group, Including Discontinued Operation, Revenue Operating Costs Operating Expenses [Abstract] Property operating expenses Disposal Group, Including Discontinued Operation, Property Operating Expenses Disposal Group, Including Discontinued Operation, Property Operating Expenses General and administrative expense Disposal Group, Including Discontinued Operation, General and Administrative Expense Depreciation and amortization Disposal Group, Including Discontinued Operation, Depreciation and Amortization Management fee to affiliate Disposal Group, Including Discontinued Operation, Management Fee to Affiliate Disposal Group, Including Discontinued Operation, Management Fee to Affiliate Gain on settlement of investments Gain on settlement of investments Amount of gain on settlement of investments attributable to disposal group. Total operating costs Disposal Group, Including Discontinued Operation, Operating Expense Other Income (Expenses) Other Nonoperating Income (Expense) [Abstract] Interest expense Disposal Group, Including Discontinued Operation, Interest Expense Other income Disposal Group, Including Discontinued Operation, Other Income Total other income (expenses) Disposal Group, Including Discontinued Operation, Other Income (Expense) Disposal Group, Including Discontinued Operation, Other Income (Expense) Income tax (benefit) Discontinued Operation, Tax Effect of Discontinued Operation Income (loss) applicable to common stockholders Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent General and administrative expense - acquisition and transaction expenses (D) Acquisition and transaction expenses This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Subprime Portfolio I Subprime Portfolio I [Member] Company's holdings in Subprime Mortgage Loans Portfolio I. Subprime Portfolio II Subprime Portfolio II [Member] Company's holdings in Subprime Mortgage Loans Portfolio II. CDO Collateralized Debt Obligations [Member] Affiliates Affiliated Entity [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Period management fee earned Management Fee Earned Upon Affirmative Vote of at least Two-Thirds of Independent Directors, Period Management Fee Earned Upon Affirmative Vote of at least Two-Thirds of Independent Directors, Period Manager advisory fee (as percent) Manager Advisory Fee The percentage of the company's gross equity, inclusive of adjustments for return of capital dividends, which is due to the manager each fiscal year as fees for advisory and other services. Incentive compensation percentage (as percent) Incentive compensation percentage The incentive compensation percentage to be paid to the Manager. Simple interest rate in incentive calculation (as percent) Simple interest rate in incentive calculation Interest rate utilized in incentive compensation calculation. Shares held by Fortress and affiliates in Newcastle (in shares) Shares held by Fortress and affiliates Number of shares of the company's stock held by Fortress investments directly and through affiliates. Stock options outstanding (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Due to affiliates Due to Affiliate Servicing fee percentage (as percent) Servicing fee percentage The servicing fee, on a percentage basis, on the unpaid principal balance of Subprime Portfolios. Loan unpaid principal balance Principal Amount Outstanding on Loans Managed and Securitized or Asset-backed Financing Arrangement Cash investments made in affiliates or related companies Investments in and Advances to Affiliates, at Fair Value, Gross Additions Expected yield (as percent) Expected yield The expected yield of investments in CDOs made with affiliates. Proceeds from notes receivable Proceeds from Collection of Notes Receivable Loan to affiliate Notes Receivable, Related Parties Interest income Interest and Dividend Income, Operating Amount payable to aircraft operator for aircraft charter Accounts Payable, Related Parties Allowance for Loan and Lease Losses [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Beginning balance Loans and Leases Receivable, Allowance Charge-offs Allowance for Loan and Lease Losses, Write-offs Transfer to held-for-sale Allowance for Loan and Lease Losses, Adjustments, Other Sales Allowance for Loan and Lease Losses, Loans Sold Valuation (allowance) reversal on loans Ending balance Number of loans - total charge-offs Number of loans - total charge-offs Represents the total number of loans charged-off. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Various Various Date or year of grant of equity-based compensation. 2002 - 2007 2002-2007 Date or year of grant of equity-based compensation. 2002-2006 2002-2004 Date or year of grant of equity-based compensation. Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of Options, (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Options exercisable (in shares) Fair value at date of grant Fair value at date of grant The grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Issuance of stock options - equitable adjustment (in shares) Issuance of stock options - equitable adjustment Number of share options issued open equitable adjustment in order to account for the impact of the return of capital distributions. Assets Real estate securities, available-for-sale - Note 5 Real estate securities, available-for-sale - pledged as collateral - Note 5 Real estate related and other loans, held-for-sale, net - Note 6 Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Commercial, Real Estate Subprime mortgage loans subject to call option - Note 6 Subprime mortgage loans subject to call option Reflects the aggregate carrying amount of subprime mortgage loans subject to call option. Investments in real estate, net of accumulated depreciation - Note 7 Investments in real estate, net of accumulated depreciation Amount of real estate investment property, net of accumulated depreciation related to investments in real estate. Intangibles, net of accumulated amortization - Note 8 Other investments Other Investments Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Receivables from brokers, dealers and clearing organizations Receivables from Brokers-Dealers and Clearing Organizations Receivables and other assets - Note 2 Other Assets Total Assets Assets