Commitments and Contingencies Disclosure [Abstract] Future Minimum Lease Payments Lessee, Operating Lease, Disclosure [Table Text Block] Real Estate [Abstract] Real Estate Investments Schedule of Real Estate Properties [Table Text Block] Real Estate Intangibles Schedule of Finite-Lived Intangible Assets [Table Text Block] Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Holiday Acquisitions Holdings LLC [Member] Holiday Acquisitions Holdings LLC [Member] Counterparty whose affiliates or subsidiaries manage properties for the Company. Statement [Line Items] Statement [Line Items] Cash Flows From Operating Activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net loss Net Income (Loss) Attributable to Parent Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation of tangible assets and amortization of intangible assets Depreciation, Depletion and Amortization, Nonproduction Amortization of deferred financing costs Amortization of Debt Issuance Costs Amortization of deferred revenue, net Increase (Decrease) in Deferred Revenue Non-cash straight line rental revenue Straight Line Rent Non-cash adjustment on lease Non-cash adjustment on lease Non-cash adjustment on lease Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Provision for bad debt Provision for Doubtful Accounts Amortization of equity-based compensation Share-based Compensation Gain (Loss) on Sale of Properties Gain (Loss) on Sale of Properties Other non-cash expense Other Noncash Expense Changes in: Increase (Decrease) in Operating Capital [Abstract] Receivables and other assets, net Increase (Decrease) in Accounts Receivable and Other Operating Assets Due to affiliates Increase (Decrease) in Due to Affiliates Accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash Flows From Investing Activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Proceeds from sale of real estate Proceeds from Sale of Real Estate Held-for-investment Capital expenditures, net of insurance proceeds Payments to Acquire Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash Flows From Financing Activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Principal payments of mortgage notes payable and capital lease obligations Repayments of Notes Payable Proceeds from Notes Payable Proceeds from Notes Payable Repayments of mortgage notes payable Early Repayment of Notes Payable The cash outflow for the extinguishment of borrowings supported by a written promise to pay an obligation before its maturity. Payment of exit fee on extinguishment of debt Payment for Debt Extinguishment or Debt Prepayment Cost Payment of deferred financing costs Payments of Financing Costs Purchase of interest rate caps Payments for Derivative Instrument, Financing Activities Payment of common stock dividend Payments of Ordinary Dividends, Common Stock Payment of redeemable preferred stock dividend Payments of Dividends Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of period Supplemental Disclosure of Cash Flow Information Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest expense Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid during the period for income taxes Income Taxes Paid Supplemental Disclosure of Non-Cash Investing and Financing Activities Supplemental Cash Flow Elements [Abstract] Issuance of common stock Stock Issued During Period, Value, Issued for Services Capital lease obligations Capital Lease Obligations Incurred Furniture, fixtures, equipment and other improvements Property, Plant and Equipment, Additions Reconciliation of Cash, Cash Equivalents and Restricted Cash Restricted Cash and Cash Equivalents [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash Cash and cash equivalents Restricted cash Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Managed Properties [Member] Managed Properties [Member] The segment of the business for senior housing properties across the United States that are operated pursuant to property management agreements. These properties include dedicated living properties (IL-only properties) and properties with some combination of independent living and healthcare services, including assisted living and memory care properties (AL/MC properties). Triple Net Lease Properties [Member] Triple Net Lease Properties [Member] The segment of the business for senior housing properties across the United States where the Company purchases property and enters into a long-term lease with a tenant. These properties include dedicated living properties (IL-only properties) and properties with some combination of independent living and healthcare services, including assisted living and memory care properties (AL/MC properties). Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Real Estate [Domain] Real Estate [Domain] Independent Living Properties [Member] Independent Living Properties [Member] Multi-unit senior housing development that may provide supportive services such as meals, housekeeping, social activities, and transportation. Independent Living typically encourages socialization by provision of meals in a central dining area and scheduled social programs. Assisted Living and Memory Care Properties [Member] Assisted Living and Memory Care Properties [Member] Assisted Living/Memory Care properties (AL/MC) are state-regulated rental properties that provide the same services as Independent Living properties (IL-only) and additionally have staff to provide residents assistance with activities of daily living, such as management of medications, bathing, dressing, and toileting, ambulating and eating. AL/MC properties may include memory care facilities that specifically provide care for individuals with Alzheimer's disease and other forms of dementia or memory loss. Other Property Managers [Member] Other Property Managers [Member] Represents FHC Property Management LLC (together with its subsidiaries, "Blue Harbor"), an affiliate of FIG LLC (the "Manager"), Jerry Erwin Associates, Inc. ("JEA") and Thrive Senior Living LLC ("Thrive"), collectively, the "Property Managers." Under Property Management Agreements, the Property Managers are responsible for the day-to-day operations of the Company's senior housing properties and are entitled to a management fee in accordance with the terms of the Property Management Agreements. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Organization [Abstract] Number of Real Estate Properties Number of Real Estate Properties Number of states in which properties are located Number of States in which Entity Operates Termination fee to affiliate Termination fee to affiliate Termination fee to affiliate Temporary Equity, Shares Issued Temporary Equity, Shares Issued Temporary Equity, Liquidation Preference Temporary Equity, Liquidation Preference Number of reportable segments Number of Reportable Segments Initial term of Property Management Agreements Property Management Agreements, Term of Contract Term of the Property Management Agreements, in 'PnYnMnDTnHnMnS' format. Extension period after initial term of Property Management Agreements Property Management Agreements, Extension Period of Contract Extension period of the Property Management Agreements, in 'PnYnMnDTnHnMnS' format, after the initial term of the contract, subject to termination rights. Percentage of property's gross revenues paid as property management fees Percentage of property's effective gross revenues paid as property management fees The percentage of a property's effective gross revenues (as defined in the Property Management Agreement) paid as a property management fee. Term of lease agreements Lessee, Operating Lease, Term of Contract Rent increase percentage in lease agreements Rent increase percentage The periodic rent increase percentage associated with the Company's lease agreements. Dispositions [Abstract] Dispositions [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] 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] Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Number of properties sold Number of properties sold The number of properties sold. Sale price Disposal Group, Including Discontinued Operation, Consideration Loss on sale of real estate Gains (Losses) on Sales of Investment Real Estate Early repayment of debt Segment Reporting [Abstract] Segment Reporting Schedule of Segment Reporting Information, by Segment [Table Text Block] Percentage of Total Revenues by Geographic Location Revenue from External Customers by Geographic Areas [Table Text Block] Statement of Comprehensive Income [Abstract] Net loss Unrealized loss on cash flow hedge Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) Total other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent REAL ESTATE INVESTMENTS Real Estate Disclosure [Text Block] Subsequent Events [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] Statement of Stockholders' Equity [Abstract] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Statement of Financial Position [Abstract] Assets Assets [Abstract] Real estate investments: Real Estate Investment Property, Net [Abstract] Land Land Buildings, improvements and other Investment Building and Building Improvements Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Net real estate property Real Estate Investment Property, Net Acquired lease and other intangible assets Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net real estate intangibles Finite-Lived Intangible Assets, Net Net real estate investments Real Estate Investments, Net Cash and cash equivalents Receivables and other assets, net Other Assets Total Assets Assets Liabilities, Redeemable Preferred Stock and Equity Liabilities and Equity [Abstract] Liabilities Liabilities [Abstract] Debt, net Notes Payable Due to affiliates Due to Affiliate Accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Total Liabilities Liabilities Commitments and contingencies (Note 15) Commitments and Contingencies Redeemable preferred stock, $0.01 par value with $100 liquidation preference, 400,000 shares authorized, issued and outstanding as of June 30, 2019 and December 31, 2018, respectively Preferred Stock, Redemption Amount, Future Redeemable Securities Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred Stock $0.01 par value, 100,000,000 shares authorized and none issued or outstanding as of both March 31, 2019 and December 31, 2018 Preferred Stock, Value, Issued Common stock $0.01 par value, 2,000,000,000 shares authorized and 82,148,869 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total Equity Stockholders' Equity Attributable to Parent Total Liabilities, Redeemable Preferred Stock and Equity Liabilities and Equity Related Party Transactions [Abstract] TRANSACTIONS WITH AFFILIATES Related Party Transactions Disclosure [Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Mortgage Notes Payable [Member] Mortgages [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Fixed Rate [Member] Fixed Rate Mortgage Notes Payable [Member] Aggregate mortgage notes payable with fixed interest rates. Floating Rate [Member] Floating Rate Mortgage Notes Payable [Member] Aggregate mortgage notes payable with floating interest rates. Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Mortgage Notes Payable [Abstract] Notes Payable, Noncurrent [Abstract] Outstanding face amount Debt Instrument, Outstanding Face Amount Current principal balance (after principal paydowns). Carrying value Long-term Debt, Gross Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Stated interest rate Debt Instrument, Description of Variable Rate Basis Weighted average maturity (years) Debt Instrument, Weighted Average Maturity Period The weighted average period until maturity of debt instruments, in PnYnMnDTnHnMnS' format. Deferred financing costs Debt Issuance Costs, Net Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Line of Credit Facility, Maximum Amount Outstanding During Period Line of Credit Facility, Maximum Amount Outstanding During Period Line of Credit Facility, Maximum Month-end Outstanding Amount Line of Credit Facility, Maximum Month-end Outstanding Amount Carrying value of collateral Debt Instrument, Collateral Amount Derivative, Notional Amount Derivative, Notional Amount Lease Termination [Abstract] Lease Termination [Abstract] LEASE TERMINATION Unusual or Infrequent Items, or Both, Disclosure [Text Block] Accounting Policies [Abstract] Basis of Accounting, Policy [Policy Text Block] Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Derivatives, Policy [Policy Text Block] Derivatives, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value Disclosures [Abstract] Carrying Amounts and Fair Values of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Receivables and Other Assets [Abstract] Other Assets [Abstract] Escrows held by lenders Escrow Deposit Prepaid expenses Prepaid Expense Resident receivables, net Accounts Receivable, Net Security deposits Security Deposit Income tax receivable Income Taxes Receivable Real Estate Held-for-sale Real Estate Held-for-sale Deferred Rent Asset, Net, Current Deferred Rent Asset, Net, Current Other assets and receivables Other Assets, Miscellaneous Total receivables and other assets Allowance for Doubtful Accounts [Roll Forward] Allowance for Doubtful Accounts Receivable [Roll Forward] Balance, beginning of period Allowance for Doubtful Accounts Receivable Write-offs, net of recoveries Allowance for Doubtful Accounts Receivable, Recoveries Balance, end of period Operating Leases, Future Minimum Payments Receivable, Current Operating Leases, Future Minimum Payments Receivable, Current Operating Leases, Future Minimum Payments Receivable, in Two Years Operating Leases, Future Minimum Payments Receivable, in Two Years Operating Leases, Future Minimum Payments Receivable, in Three Years Operating Leases, Future Minimum Payments Receivable, in Three Years Operating Leases, Future Minimum Payments Receivable, in Four Years Operating Leases, Future Minimum Payments Receivable, in Four Years Operating Leases, Future Minimum Payments Receivable, in Five Years Operating Leases, Future Minimum Payments Receivable, in Five Years Operating Leases, Future Minimum Payments Receivable, Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Operating Leases, Future Minimum Payments Receivable Operating Leases, Future Minimum Payments Receivable Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] FIG LLC [Member] FIG LLC [Member] FIG LLC (Manager) is an affiliate of Fortress Investment Group LLC (Fortress), a leading global investment management firm. The Manager advises the entity on various aspects of business and manages day-to-day operations, subject to the supervision of the board of directors. Blue Harbor and Holiday [Member] Blue Harbor and Holiday [Member] Holiday Acquisition Holdings LLC (Holiday), a portfolio company that is majority owned by private equity funds managed by an affiliate of FIG LLC (the Manager), a subsidiary of Fortress Investment Group LLC (Fortress), and FHC Property Management LLC (together with its subsidiaries, Blue Harbor), an affiliate of the Manager, who manage the Company's Manager Properties. Property Managers [Member] Property Managers [Member] Affiliates of Fortress Investment Group, LLC. that are party to Property Management Agreements with the Company. Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Management Fees Under Management Agreement [Member] Management Fees Under Management Agreement [Member] Under the Management Agreement, the Manager advises the Company on various aspects of its business and manages its day-to-day operations, subject to the supervision of the Company's board of directors. For its management services, the Manager is entitled to a base management fee of 1.5% per annum of the Company's gross equity. Gross equity is generally defined as the equity invested by Newcastle as of the distribution date plus the aggregate offering price from stock offerings, plus certain capital contributions to subsidiaries, less capital distributions (calculated without regard to depreciation and amortization) and repurchases of common stock, calculated and payable monthly in arrears in cash. Reimbursement for Tasks and Other Services Performed Under the Management Agreement [Member] Reimbursement for Tasks and Other Services Performed Under the Management Agreement [Member] Reimbursement for Tasks and Other Services Performed Under the Management Agreement Property Management Fees Under Property Management Agreement [Member] Property Management Fees Under Property Management Agreement [Member] Property management fees paid to manage a portion of the Company's senior housing properties under Property Management Agreements with affiliates of Fortress. Reimbursement of Property-Level Payroll Expenses Under Property Management Agreement [Member] Reimbursement of Property-Level Payroll Expenses Under Property Management Agreement [Member] Under the Property Management Agreement, the payroll expense is structured as a reimbursement to the Property Manager, who is the employer of record. Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] General and Administrative Expense [Member] General and Administrative Expense [Member] Acquisition, Transaction and Integration Expense [Member] Acquisition, Transaction and Integration Expense [Member] Primary financial statement caption encompassing acquisition, transaction and integration expense. Related Party Transaction [Line Items] Related Party Transaction [Line Items] Management Agreements [Abstract] Related Party Transaction, Due from (to) Related Party [Abstract] Management fee rate payable Property Management Fee, Percent Fee Management fees and incentive compensation to affiliate Management Fee to Affiliate Fees paid to affiliate which advises the Company on various aspects of its business and manages its day-to-day operations pursuant to a management agreement. Percentage used in calculation of annual incentive compensation paid to Manager Percentage used in calculation of annual incentive compensation paid to Manager Percentage used in the calculation of annual incentive compensation on a cumulative, but not compounding basis, paid to Manager. Interest rate used in calculation of annual incentive compensation paid to Manager Interest rate used in calculation of annual incentive compensation paid to Manager Interest rate used in the calculation of annual incentive compensation on a cumulative, but not compounding basis, paid to Manager. Reimbursement to manager for tasks and other services under the management agreement Management Fee Expense Property Management Agreements [Abstract] Property Management Fee [Abstract] Percentage of property's gross income paid as property management fees, Year one and two Percentage of property's gross income paid as property management fees, Year one and two Percentage of property's gross income (as defined in the Property Management Agreement) paid as property management fees for the first two years of the agreements. Percentage of property's gross income paid as property management fees thereafter Percentage of property's gross income paid as property management fees, Thereafter Percentage of property's gross income (as defined in the Property Management Agreement) paid as property management fees after the first two years of the agreements. Percentage of property's effective gross income paid as property management fees Percentage of property's effective gross income paid as property management fees The percentage of a property's effective gross income (as defined in the Property Management Agreement) paid as a property management fee. Property management fees Property Management Fee Revenue Travel reimbursement costs Travel and Entertainment Expense Property-level payroll expenses Labor and Related Expense Income Tax Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] State and Local Jurisdiction State and Local Jurisdiction [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Provision for Income Taxes [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Total current provision Current Income Tax Expense (Benefit) Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Total deferred provision Deferred Income Tax Expense (Benefit) Total provision for income taxes Income Tax Expense (Benefit) Deferred Tax Assets, Valuation Allowance Deferred Tax Assets, Valuation Allowance Operating Loss Carryforwards Operating Loss Carryforwards Receivables and Other Assets, Net Schedule of Other Assets [Table Text Block] Allowance for Doubtful Accounts and Related Provision for Resident Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Equity [Abstract] REDEEMABLE PREFERRED STOCK, EQUITY AND EARNINGS PER SHARE Stockholders' Equity Note Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land [Member] Land [Member] Building and Improvements [Member] Building and Building Improvements [Member] Furniture, Fixtures and Equipment [Member] Furniture and Fixtures [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Depreciation expense Depreciation Real Estate Investments, Net [Abstract] Gross carrying amount Real Estate Investment Property, at Cost Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] In-Place Lease and Other Intangibles [Member] Leases, Acquired-in-Place [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Amortization expense Amortization of Intangible Assets Real Estate Intangibles [Abstract] Finite-Lived Intangible Assets, Net [Abstract] Gross carrying amount Weighted average remaining amortization period Finite-Lived Intangible Asset, Useful Life SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Consideration Received, Lease Termination Agreement Consideration Received, Lease Termination Agreement Total consideration received for the lease termination agreement. Termination Payment, Lease Termination Agreement Termination Payment, Lease Termination Agreement The termination payment associated with the lease termination agreement. Security Deposit Gain on lease termination Gain (Loss) on Termination of Lease Other Intangible Assets, Net Other Intangible Assets, Net Incentive fee percentage Incentive fee percentage Incentive fee percentage Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Triple Net Lease [Member] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Watermark [Member] Watermark [Member] Continuing Care Retirement Community (CCRC) rental property located in Pennsylvania. Category of Item Purchased [Axis] Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-term Purchase Commitment, Category of Item Purchased [Domain] Additional Capital Improvements [Member] Additional Capital Improvements [Member] Contractual obligation to make additional funds available for capital improvements. Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Capital Improvement and Repair Commitments [Abstract] Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract] Capital improvements Long-term Purchase Commitment, Amount Lease period Operating Leases Operating Lease Liabilities, Payments Due [Abstract] Remaining lease term Lessee, Operating Lease, Remaining Lease Term Lessee, Operating Lease, Remaining Lease Term 2019 (six months) Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total future minimum lease payments Lessee, Operating Lease, Liability, Payments, Due Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total operating lease liability Operating Lease, Liability Transactions With Affiliates [Abstract] Transactions With Affiliates [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] AOCI Attributable to Parent [Member] AOCI Attributable to Parent [Member] Accumulated Deficit [Member] Retained Earnings [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Increase (Decrease) in Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Equity (in shares) Common Stock, Shares, Outstanding Equity Restricted stock awards issued (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Restricted stock awards issued Stock Issued During Period, Value, Restricted Stock Award, Gross Amortization of equity-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition Fair value of stock options issued Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition Directors shares issued (in shares) Stock Issued During Period, Shares, Issued for Services Directors shares issued Dividends declared - common stock Dividends, Common Stock, Cash Dividends declared - restricted stock awards Dividends, Cash Deemed dividend on redeemable preferred stock Redeemable Preferred Stock Dividends Other comprehensive loss Equity Equity (in shares) 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 outstanding (in shares) Preferred Stock, Shares Outstanding 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) Mortgage Notes Payable, Net Schedule of Debt [Table Text Block] DEBT, NET Mortgage Notes Payable Disclosure [Text Block] Rollforward of Redeemable Preferred Stock Temporary Equity [Table Text Block] Fair Value Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Computation of Basic and Diluted Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Document Period End Date Document Period End Date Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Operating Lease, Liability Operating Lease, Weighted Average Remaining Lease Term Operating Lease, Weighted Average Remaining Lease Term Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent SEGMENT REPORTING Segment Reporting Disclosure [Text Block] DISPOSITIONS Dispositions Disclosure [Table Text Block] [Table Text Block] for Dispositions Disclosure [Table] Payables and Accruals [Abstract] ACCRUED EXPENSES AND OTHER LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Corporate, Non-Segment [Member] Corporate, Non-Segment [Member] Revenues Revenues [Abstract] Resident fees and services Resident fees and services revenue Resident fees and services include monthly rental income, care income and ancillary income recognized from the Managed Properties segment. Resident fees and services are recognized monthly as services are provided. Lease agreements with residents are cancelable by the resident with 30 days' notice. Ancillary income primarily relates to non-refundable community fees. Non-refundable community fees are recognized on a straight-line basis over the average length of stay of residents, which management estimates to be approximately 24 months for assisted living or memory care properties, and approximately 33 months for independent living properties. Rental revenue Operating Leases, Income Statement, Lease Revenue Less: Property operating expense Cost of Other Property Operating Expense Segment NOI Operating Income (Loss) Depreciation and amortization Depreciation, Depletion and Amortization Interest expense Interest Expense General and administrative expense General and Administrative Expense Acquisition, transaction and integration expense Business Combination, Acquisition Related Costs Other expense Other General Expense Total expenses Other Cost and Expense, Operating Loss on sale of real estate Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Assets Percentage of assets Percentage of assets Percentage of assets as on the balance sheet date that are recognized by reportable segments. Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Tenant for Holiday Portfolios [Member] Tenant for Holiday Portfolios [Member] Tenant for the portfolios managed by Holiday Acquisitions Holdings LLC. Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Net [Member] Sales Revenue, Net [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Florida FLORIDA California CALIFORNIA Texas TEXAS North Carolina NORTH CAROLINA Pennsylvania PENNSYLVANIA Oregon OREGON Other Other States [Member] Other states in the United States where the entity owns properties. Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Major Customers [Abstract] Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments [Abstract] Number of communities Percentage of revenue Concentration Risk, Percentage Derivative Instruments and Hedging Activities Disclosure [Abstract] DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Accounts Payable and Accrued Liabilities [Abstract] Accrued Liabilities and Other Liabilities [Abstract] Security deposits payable Security Deposit Liability Accounts payable Accounts Payable Mortgage interest payable Interest Payable Deferred community fees, net Deferred Revenue Rent collected in advance Advance Rent Property tax payable Accrual for Taxes Other than Income Taxes Derivative Liability Derivative Liability Other liabilities Other Liabilities Total accrued expenses and other liabilities Accrued Liabilities and Other Liabilities Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Cumming v. Edens, et al., C.A. No. 13007-VCS [Member] Cumming v Edens, et al, CA No 13007-VCS [Member] Cumming v Edens, et al, CA No 13007-VCS [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Settlement awarded to company Gain (Loss) Related to Litigation Settlement Fee and expense awarded to plaintiff's counsel Litigation Settlement, Expense Term within which deposit of settlement funds must be made Settlement, Term Within Deposit Must Be Made Settlement, Term Within Deposit Must Be Made Term for payment of settlement funds Settlement, Term For Payment Of Settlement Funds Settlement, Term For Payment Of Settlement Funds Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Derivative, Loss on Derivative Derivative, Loss on Derivative INCOME TAXES Income Tax Disclosure [Text Block] Income Statement [Abstract] Revenues Total revenues Revenues Expenses Operating Expenses [Abstract] Property operating expense Total expenses Operating Expenses Net loss attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Net loss per share of common stock Earnings Per Share, Basic and Diluted [Abstract] Basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted Weighted average number of shares of common stock outstanding Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Basic and diluted (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Dividends declared per share of common stock (in dollars per share) Cover page. Document Type Document Type Amendment Flag Amendment Flag Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Preferred Stock, Redemption, Period [Axis] Preferred Stock, Redemption, Period [Axis] Preferred Stock, Redemption, Period [Axis] Preferred Stock, Redemption, Period [Domain] Preferred Stock, Redemption, Period [Domain] [Domain] for Preferred Stock, Redemption, Period [Axis] On or after December 31, 2020 On Or After December 31, 2020 [Member] On Or After December 31, 2020 [Member] Employee Stock Option Employee Stock Option [Member] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Internalization Awards Internalization Awards [Member] Internalization Awards [Member] Drive Shack Options Drive Shack Options [Member] Drive Shack Options [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Deemed dividend on redeemable preferred stock Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Redeemable Preferred Stock Dividends Increase in Carrying Amount of Redeemable Preferred Stock Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Option Award - expected remaining term Option Award - expected remaining term Option Award - expected remaining term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Transition option award - fair value at valuation date Transition option award - fair value at valuation date Transition option award - fair value at valuation date Net (loss) income attributable to common stockholders Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted Earnings Per Share, Basic and Diluted Earnings Per Share, Basic Earnings Per Share, Diluted Earnings Per Share, Diluted Preferred Stock, Liquidation Preference, Value Preferred Stock, Liquidation Preference, Value Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Rate, Percentage Preferred Stock, Redemption, Percentage Of Outstanding Stock That May Be Redeemed Preferred Stock, Redemption, Percentage Of Outstanding Stock That May Be Redeemed Preferred Stock, Redemption, Percentage Of Outstanding Stock That May Be Redeemed Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Reduction In Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Reduction In Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Reduction In Exercise Price RECEIVABLES AND OTHER ASSETS, NET Other Assets Disclosure [Text Block] Accrued Expenses and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Mortgages [Member] Line of Credit [Member] Line of Credit [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Restricted cash Restricted Cash and Cash Equivalents Interest rate caps Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Mortgage debt Notes Payable, Fair Value Disclosure Revolving credit facility Lines of Credit, Fair Value Disclosure Interest rate swap