Montara Meadows Montara Meadows [Member] Montara Meadows [Member] Depreciation and amortization Depreciation and Amortization, Discontinued Operations Accounting Standards Update 2016-18 Accounting Standards Update 2016-18 [Member] Net real estate property Disposal Group, Including Discontinued Operation, Real Estate Property, Net Disposal Group, Including Discontinued Operation, Real Estate Property, Net Level 3 Fair Value, Inputs, Level 3 [Member] North Logan, UT North Logan, UT [Member] City and state where property is located. Real Estate [Domain] Real Estate [Domain] Amortization of equity-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Rollforward of Redeemable Preferred Stock Temporary Equity [Table Text Block] 2023 Long-term Debt, Maturities, Repayments of Principal in Year Four 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Accrued expenses and other liabilities Total accrued expenses and other liabilities Accrued Liabilities and Other Liabilities 2023 Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Four Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Four Payment of exit fee on extinguishment of debt Prepayment penalties Payment for Debt Extinguishment or Debt Prepayment Cost Debt, maximum amount of loan used for issuance of letters of credit, percent Debt, Maximum Amount of Loan Used for Issuance of Letters of Credit, Percent Debt, Maximum Amount of Loan Used for Issuance of Letters of Credit, Percent Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Straight-line rent receivable Deferred Rent Receivables, Net Buildings, improvements and other Disposal Group, Including Discontinued Operation, Buildings, Improvements and Other Disposal Group, Including Discontinued Operation, Buildings, Improvements and Other Name of Property [Domain] Name of Property [Domain] Escrows held by lenders Escrow Deposit Current Fiscal Year End Date Current Fiscal Year End Date Total revenues Revenue Revenues Derivative [Line Items] Derivative [Line Items] Vista, CA Vista, CA [Member] Vista, CA [Member] Carrying Value Reported Value Measurement [Member] Lessee, operating lease, remaining lease term (years) Lessee, Operating Lease, Remaining Lease Term Lessee, Operating Lease, Remaining Lease Term Rancho Village Rancho Village [Member] Rancho Village [Member] Number of options (in shares) Options outstanding beginning of period (in shares) Options outstanding end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Urbandale, IA Urbandale, IA [Member] City and state where property is located. Payables and Accruals [Abstract] Colonial Harbor Colonial Harbor [Member] Independent living property located in Yorktown, VA. Summarized Unaudited Quarterly Financial Data Quarterly Financial Information [Table Text Block] Salt Lake City, UT Salt Lake City, UT [Member] City and state where property is located. LIBOR London Interbank Offered Rate (LIBOR) [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Basis spread on variable rate (in hundredths) Debt Instrument, Basis Spread on Variable Rate Stone Lodge Stone Lodge [Member] Stone Lodge [Member] Cover page. Lenexa, KS Lenexa, KS [Member] Lenexa, KS [Member] Options exercisable, weighted average remaining life (years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Other Expense Other Expense [Member] Document Type Document Type Cedar Ridge Cedar Ridge [Member] Cedar Ridge [Member] Cash and cash equivalents Cash Equivalents, at Carrying Value Non-cash adjustment on lease termination Non-cash adjustment on lease termination Non-cash adjustment on lease termination Initial term of Property Management Agreements (years) Property Management Agreements, Term of Contract Term of the Property Management Agreements, in 'PnYnMnDTnHnMnS' format. Gross Carrying Amount Real Estate Investment Property, at Cost Provision for Income Taxes [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Scenario, Unspecified [Domain] Scenario [Domain] Maple Downs Maple Downs [Member] Independent living property located in Fayetteville, NY. Redeemable preferred stock, shares issued (in shares) Temporary Equity, Shares Issued Derivative Instruments and Hedging Activities Disclosure [Abstract] Furniture, fixtures, equipment and other improvements Property, Plant and Equipment, Additions Georgtown, TX Georgetown, TX [Member] Georgetown, TX [Member] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Harrisburg, PA Harrisburg, PA [Member] City and state where property is located. Fountains at Hidden Lakes Fountains at Hidden Lakes [Member] Independent living property located in Salem, OR. 2021 Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in Year Two Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in Year Two Greece, NY Greece, NY [Member] City and state where property is located. Forfeitures in period, weighted average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] Maple Suites Maple Suites [Member] Maple Suites [Member] Equity [Abstract] Ballwin, MO Ballwin, MO [Member] City and state where property is located. Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Income Tax Authority [Domain] Income Tax Authority [Domain] Commitments and contingencies (Note 18) Commitments and Contingencies Cash, cash equivalents and restricted cash, beginning of year Cash, cash equivalents and restricted cash, end of year Total Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Debt Instrument [Line Items] Debt Instrument [Line Items] Reno, NV Reno, NV [Member] City and state where property is located. Consolidation Items [Domain] Consolidation Items [Domain] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Rolling Hills Ranch Rolling Hills Ranch [Member] Rolling Hills Ranch [Member] Resident receivables, net Accounts Receivable, after Allowance for Credit Loss Award vesting period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Net real estate intangibles Disposal Group, Including Discontinued Operation, Real Estate Intangibles, Net Disposal Group, Including Discontinued Operation, Real Estate Intangibles, Net Schedules of Concentration of Risk Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount 2021 Lessor, Operating Lease, Payments to be Received, Two Years Costs Capitalized Subsequent to Acquisition SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Cost Capitalized Subsequent to Acquisition, Cost Buildings and Improvements SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Building and Improvements Segments [Axis] Segments [Axis] New York, NY New York, NY [Member] New York, NY Grace Manor Grace Manor [Member] Grace Manor [Member] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Receivables and other assets, net Disposal Group, Including Discontinued Operation, Receivables and Other Assets, Net Disposal Group, Including Discontinued Operation, Receivables and Other Assets, Net Diluted earnings per common share: Earnings Per Share, Diluted [Abstract] Secured Debt Secured Debt [Member] Impairment of real estate held for sale Impairment of Real Estate Segment NOI Net operating income Operating Income (Loss) Lakewood, CO Lakewood, CO [Member] City and state where property is located. Accounts Payable and Accrued Liabilities [Abstract] Accrued Liabilities and Other Liabilities [Abstract] Above-market rent lease intangible assets Other Intangible Assets, Net Rapid City, SD Rapid City, SD [Member] Rapid City, SD [Member] Flint Township, MI Flint Township, MI [Member] Flint Township, MI [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Segments [Domain] Segments [Domain] Number of communities (community) Number of Communities Number of Communities Net income (loss) attributable to common stockholders, basic (in dollars per share) Earnings Per Share, Basic Fort Gratiot, MI Fort Gratiot, MI [Member] City and state where property is located. Equity awards, dividends, per share, declared (in dollars per share) Equity Awards, Dividends, Per Share, Declared Equity Awards, Dividends, Per Share, Declared Grizzly Peak Grizzly Peak [Member] Independent living property located in Missoula, MT. Credit Concentration Risk Credit Concentration Risk [Member] Amended and Restated Stock Option and Incentive Award Plan Amended and Restated Stock Option and Incentive Award Plan [Member] Amended and Restated Stock Option and Incentive Award Plan Options outstanding, weighted average exercise price (in usd per share) Options outstanding, weighted average exercise price (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Bradenton, FL Bradenton, FL [Member] City and state where property is located. Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Oakwood Hills Oakwood Hills [Member] Independent living property located in Eau Claire, WI. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Quail Run Estates Quail Run Estates [Member] Quail Run Estates [Member] Net cash provided by (used in) financing activities - discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months Statement of Stockholders' Equity [Abstract] Rental revenue Rental Revenue [Member] Primary financial statement caption in which reported facts about rental revenue have been included. Incentive fees Incentive Fee Expense Seattle, WA Seattle, WA [Member] Seattle, WA [Member] Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Arlington, TX Arlington, TX [Member] City and state where property is located. Changes in: Increase (Decrease) in Operating Capital [Abstract] Income (loss) before income taxes (Loss) income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Alexis Gardens Alexis Gardens [Member] Alexis Gardens [Member] Consolidation Items [Axis] Consolidation Items [Axis] Customer [Axis] Customer [Axis] Interest expense Interest Expense Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Restricted cash Restricted Cash and Cash Equivalents Class of Stock [Axis] Class of Stock [Axis] Plan Name [Domain] Plan Name [Domain] Interest Expense Interest Expense [Member] Use of Estimates Use of Estimates, Policy [Policy Text Block] ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Gross Amount Carried at Close of Period SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross [Abstract] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Local Phone Number Local Phone Number ACCRUED EXPENSES AND OTHER LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Triple Net Lease 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). Weighted average number of shares outstanding, Diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Adjustment Weighted Average Number of Shares Outstanding, Diluted Adjustment Expected volatility (mix of historical and implied) (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated Depreciation Beginning of period End of period SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation Peninsula Peninsula [Member] Peninsula [Member] Arlington Plaza Arlington Plaza [Member] Independent living property located in Arlington, TX. DISPOSITIONS DISCONTINUED OPERATIONS Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Wilmington, NC Wilmington, NC [Member] Wilmington, NC [Member] Briarcrest Estates Briarcrest Estates [Member] Independent living property located in Ballwin, MO. Yucaipa, CA Yucaipa, CA [Member] Yucaipa, CA [Member] Interest rate caps, fair value Derivative, Fair Value, Net Principal Payments Long-term Debt, Fiscal Year Maturity [Abstract] Fort Collins, CO Fort Collins, CO [Member] City and state where property is located. REDEEMABLE PREFERRED STOCK, EQUITY AND EARNINGS PER SHARE Shareholders' Equity and Share-based Payments [Text Block] Receivables and other assets, net Total receivables and other assets, net Other Assets Forfeitures in period, weighted average exercise price (in dollars per share) Options forfeited, weighted average exercise price (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Wake Forest, NC Wake Forest, NC [Member] Wake Forest, NC [Member] Redeemable preferred stock, par value (in dollars per share) Temporary Equity, Par or Stated Value Per Share Fort Worth, TX Fort Worth, TX [Member] City and state where property is located. Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Preferred stock, dividend rate (percent) Preferred Stock, Dividend Rate, Percentage Derivative Instruments Derivatives, Policy [Policy Text Block] Total revenues Disposal Group, Including Discontinued Operation, Revenue Due to affiliates Disposal Group, Including Discontinued Operation, Due to Affiliates Disposal Group, Including Discontinued Operation, Due to Affiliates Amount awarded from other party Litigation Settlement, Amount Awarded from Other Party 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 Credit facility - swing loan (percent) Credit Facility - Swing Loan percent Credit Facility - Swing Loan percent Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Rocky Hill, CT Rocky Hill, CT [Member] City and state where property is located. Bettendorf, IA Bettendorf, IA [Member] City and state where property is located. Port Orange, FL Port Orange, FL [Member] Port Orange, FL [Member] Reconciliation of Statutory to Effective Tax Rate [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Net cash provided by (used in) investing activities - discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Cash paid during the year for income taxes Income Taxes Paid Capital improvements Long-term Purchase Commitment, Amount Leases [Abstract] Net real estate investments Real Estate Investments, Net Debt Instrument [Axis] Debt Instrument [Axis] Incentive fee percentage (percent) Incentive fee percentage Incentive fee percentage Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Increase in income tax expense Tax Cuts and Jobs Act, Change in Tax Rate, Income Tax Expense (Benefit) Property Management Fee [Abstract] Property Management Fee [Abstract] Depreciation expense SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Depreciation Expense Sunset Lake Village Sunset Lake Village [Member] Assisted living/memory care property located in Venice, FL. Gross Carrying Amount [Abstract] Real Estate Investment Property, at Cost [Abstract] Commitments and Contingencies Disclosure [Abstract] Scenario [Axis] Scenario [Axis] 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. Due to affiliates Due to Affiliate Simi Valley, CA Simi Valley, CA [Member] City and state where property is located. Niagara Village Niagara Village [Member] Niagara Village [Member] Share-based compensation expense Share-based Payment Arrangement, Expense Corporate, Non-Segment Corporate, Non-Segment [Member] Related Party Transaction [Domain] Related Party Transaction [Domain] Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes Entity Address, City or Town Entity Address, City or Town Document Annual Report Document Annual Report Termination fee to affiliate Termination fee to affiliate - Cash Termination fee to affiliate - Cash Knoxville, TN Knoxville, TN [Member] City and state where property is located. Maple Court Powell [Member] Assisted living/memory care property located in Powell, TN. Building and improvements Building and Building Improvements [Member] Total Beginning of period End of period SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross Operating Activities [Axis] Operating Activities [Axis] Expenses Operating Expenses [Abstract] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Royal Palm Royal Palm [Member] Assisted living/memory care property located in Port Charlotte, FL. Bluebird Estates Bluebird Estates [Member] Bluebird Estates [Member] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Line of credit facility, current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Restricted stock awards forfeited (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Risk-free rate, maximum (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Scottsdale, AZ Scottsdale, AZ [Member] City and state where property is located. Lodge at Wake Forest Lodge at Wake Forest [Member] Lodge at Wake Forest [Member] 2022 Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in Year Three Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in Year Three Richmond, VA Richmond, VA [Member] City and state where property is located. Deferred Tax Assets and Liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] Carrying Amounts and Fair Values of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] San Antonio, TX San Antonio, TX [Member] City and state where property is located. Derivative liability Interest rate swap Derivative Liability SUBSEQUENT EVENTS Subsequent Events [Text Block] Estimated useful life (years) Weighted Average Remaining Amortization Period Finite-Lived Intangible Asset, Useful Life Mortgage Notes Payable Schedule of Debt [Table Text Block] Statutory U.S. federal income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent CONCENTRATION OF CREDIT RISK Concentration Risk Disclosure [Text Block] Non-taxable REIT (loss) Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Number of properties sold (property) Number of Properties Sold Number of Properties Sold 2020 Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in the Next Twelve Months Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in the Next Twelve Months Independent Living Properties 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. Dividends declared - common stock Dividends, Common Stock, Cash Damage remediation costs for Hurricane Irma Loss from Catastrophes Reconciliation of Cash, Cash Equivalents and Restricted Cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect [Abstract] Subsequent Events [Abstract] Hanford, CA Hanford, CA [Member] Hanford, CA [Member] TRANSACTIONS WITH AFFILIATES Related Party Transactions Disclosure [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Liabilities Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Resident fees and services Disposal Group, Including Discontinued Operation, Resident Fees and Services Revenue Disposal Group, Including Discontinued Operation, Resident Fees and Services Revenue Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Issuance of Redeemable Preferred Stock Temporary Equity, Stock Issued During Period, Value, New Issues East Longmeadow, MA East Longmeadow, MA [Member] East Longmeadow, MA [Member] Non-cash valuation allowance on deferred tax assets, net Non-cash Valuation Allowance, Deferred Tax Assets, Net Non-cash Valuation Allowance, Deferred Tax Assets, Net Amortization of deferred financing costs Amortization of Debt Issuance Costs Subsequent Event [Line Items] Subsequent Event [Line Items] Wichita, KS Wichita, KS [Member] City and state where property is located. Disposals and other SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Other Deduction Country Squire Country Squire [Member] Independent living property located in St Joseph, MO. Greeley Place Greeley Place [Member] Independent living property located in Greeley, CO. Liabilities Liabilities [Abstract] Numerator for basic and diluted earnings per share: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Term Loan Term Loan [Member] Term Loan Fayetteville, NY Fayetteville, NY [Member] City and state where property is located. Deferred community fees, net Contract with Customer, Liability Mortgage Notes Payable [Abstract] Notes Payable, Noncurrent [Abstract] Net cash provided by operating activities - continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Balloon Payments Long Term Debt, Balloon Payments [Abstract] Long Term Debt, Balloon Payments Percentage of property's gross income paid as property management fees for first two years (percent) 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. Thereafter Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid after Year Five Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid after Year Five Designated as Hedging Instrument Designated as Hedging Instrument [Member] Insurance proceeds Proceeds from Insurance Settlement, Investing Activities Debt, net Disposal Group, Including Discontinued Operation, Debt, Net Disposal Group, Including Discontinued Operation, Debt, Net Related Party [Domain] Related Party [Domain] Fair value per option at valuation date (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Fair Value per Option at Valuation Date Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Fair Value per Option at Valuation Date Options outstanding, weighted average remaining life (years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Regency Residence Regency Residence [Member] Independent living property located in Port Richey, FL. Percentage of property's gross revenues paid as property management fees (in hundredths) 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. Proceeds from legal settlements Proceeds from Legal Settlements Redeemable Preferred Stock, $0.01 par value with $100 liquidation preference, 400,000 shares authorized, issued and outstanding as of December 31, 2019 and 2018 Temporary Equity, Carrying Amount, Attributable to Parent Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Internalization Awards Internalization Awards [Member] Internalization Awards Accumulated deficit Retained Earnings (Accumulated Deficit) 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. Madison Estates Madison Estates [Member] Independent living property located in San Antonio, TX. Entity Tax Identification Number Entity Tax Identification Number Purchase of interest rate caps Purchase of interest rate caps Payments for Derivative Instrument, Financing Activities Net income (loss) attributable to common stockholders, diluted (in dollars per share) Earnings Per Share, Diluted Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Acquisitions SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Other Acquisition Termination payment, lease termination agreement Termination Payment, Lease Termination Agreement Termination Payment, Lease Termination Agreement Trading Symbol Trading Symbol Number of senior housing properties sold (property) Number Of Real Estate Properties Sold Number Of Real Estate Properties Sold Minimum Minimum [Member] Sheldon Park Sheldon Park [Member] Assisted living/memory care property located in Eugene, OR. Litigation settlement, expense Litigation Settlement, Expense 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two Above / Below market intangibles Above or Below Market Intangibles [Member] Leases acquired as part of a real property acquisition at above or below market lease rate. Equity Options Equity Option [Member] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Total deferred provision Deferred Income Tax Expense (Benefit) Segment Real Estate Investments Segment Real Estate Investments [Member] Segment Real Estate Investments [Member] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Thereafter Long-term Debt, Maturities, Repayments of Principal and Balloon Payments after Year Five Long-term Debt, Maturities, Repayments of Principal and Balloon Payments after Year Five Continuing Care Retirement Communities Continuing Care Retirement Communities [Member] Continuing care retirement communities are retirement communities with accommodations for independent living, assisted living, and nursing home care, offering residents a continuum of care. Deemed dividend on redeemable preferred stock Redeemable Preferred Stock Dividends Expected dividend yield (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate University Pines University Pines [Member] University Pines [Member] Income tax expense (benefit) Total provision (benefit) for income taxes Income Tax Expense (Benefit) Lessee, Operating Lease, Liability, Payment, Due [Abstract] Lessee, Operating Lease, Liability, Payment, Due [Abstract] Accumulated depreciation SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward] 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two Dallas, TX Dallas, TX [Member] City and state where property is located. Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Acquisition, transaction, and integration expense Disposal Group, Including Discontinued Operation, Acquisition, Transaction and Integration Expense Disposal Group, Including Discontinued Operation, Acquisition, Transaction and Integration Expense Assets from discontinued operations Assets from discontinued operations Disposal Group, Including Discontinued Operation, Assets Portland, OR Portland, OR [Member] Portland, OR [Member] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies City Area Code City Area Code Outstanding Face Amount Debt Instrument, Outstanding Face Amount Current principal balance (after principal paydowns). Sale of Assets Gain on Sale of Assets [Policy Text Block] Disclosure of accounting policy for recognition of gain on sale of assets. Billings, MT Billings, MT [Member] Billings, MT [Member] Title of 12(b) Security Title of 12(b) Security Common stock, shares reserved for future issuance (shares) Common Stock, Capital Shares Reserved for Future Issuance Thornton Place Thornton Place [Member] Independent living property located in Topeka, KS. Receivables and Other Assets, Net Receivables and Other Assets, Net [Member] Receivables and Other Assets, Net Salem, OR Salem, OR [Member] City and state where property is located. Fair value of stock options issued APIC, Share-based Payment Arrangement, Recognition and Exercise Concentration Risk [Table] Concentration Risk [Table] Total net deferred tax assets Deferred Income Tax Assets, Net Eugene, OR Eugene, OR [Member] City and state where property is located. Carrying value Long-term Debt, Gross Initial Cost to the Company SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost [Abstract] Whiterock Court Whiterock Court [Member] Independent living property located in Dallas, TX. Furniture, fixtures and equipment Furniture and Fixtures [Member] Assets Assets [Abstract] Depreciation and amortization Deferred Tax Assets, Tax Credit Carryforwards Gain (loss) on disposal Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Total current provision Current Income Tax Expense (Benefit) Operating lease, weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Capital lease assets Lease Obligation Incurred Property management fees Property Management Fee Revenue Lubbock, TX Lubbock, TX [Member] City and state where property is located. Glen Riddle Glen Riddle [Member] Assisted living/memory care property located in Media, PA. Due to property managers Due to Related Parties The Regent The Regent [Member] Independent living property located in Corvallis, OR. Port Richey, FL Port Richey, FL [Member] City and state where property is located. Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Furniture, Fixtures and Equipment SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Furniture, Fixtures, and Equipment Amount before accumulated depreciation of furniture, fixtures, and equipment for entities with a substantial portion of business acquiring and holding investment real estate. Excludes real estate not held as an investment or interest. Pensacola, FL Pensacola, FL [Member] Pensacola, FL [Member] Segment Reporting Schedule of Segment Reporting Information, by Segment [Table Text Block] Winston Salem, NC Winston Salem, NC [Member] Winston Salem, NC [Member] Woods at Holly Tree Woods at Holly Tree [Member] Woods at Holly Tree [Member] Measurement Basis [Axis] Measurement Basis [Axis] Land SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Initial Cost of Land Net Book Value SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net Net real estate intangibles Net Carrying Value Finite-Lived Intangible Assets, Net Customer [Domain] Customer [Domain] Village Gate Village Gate [Member] Independent living property located in Farmington, CT. Chateau Brickyard Chateau Brickyard [Member] Independent living property located in Salt Lake City, UT. Purchase price Disposal Group, Including Discontinued Operation, Consideration Derivative Instrument [Axis] Derivative Instrument [Axis] Increase (Decrease) in Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Supplemental Disclosure of Cash Flow Information Supplemental Cash Flow Information [Abstract] Range [Axis] Statistical Measurement [Axis] Parkrose Chateau Parkrose Chateau [Member] Parkrose Chateau [Member] Accrued dividend on Redeemable Preferred Stock Increase in Carrying Amount of Redeemable Preferred Stock Toledo, OH Toledo, OH [Member] Toledo, OH [Member] Basis of Presentation and Principles of Consolidation Basis of Accounting, Policy [Policy Text Block] Port Charlotte, FL Port Charlotte, FL [Member] City and state where property is located. Reimbursement to manger for other tasks and services under the management agreement Management Fee Expense Derivative, notional amount Derivative, Notional Amount Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Basic earnings per common share: Earnings Per Share, Basic [Abstract] Expected volatility, minimum (mix of historical and implied) (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Payment of redeemable preferred stock dividend Payments of Ordinary Dividends, Preferred Stock and Preference Stock Unrealized loss on cash flow hedge Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Greeley, CO Greeley, CO [Member] City and state where property is located. Forsyth Court Independence Village [Member] Independence Village [Member] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Accumulated amortization Disposal Group, Including Discontinued Operation, Acquired Lease and Other Intangible Assets, Accumulated Amortization Disposal Group, Including Discontinued Operation, Acquired Lease and Other Intangible Assets, Accumulated Amortization Term of debt (years) Long-term Debt, Term Revenue from External Customers by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Redeemable preferred stock, liquidation preference per share (in dollars per share) Liquidation preference per share (in dollars per share) Temporary Equity, Liquidation Preference Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized 2024 Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Five Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Five Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Interest rate cash flow hedge loss to be reclassified during the next twelve months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Litigation proceeds, net Gain (Loss) Related to Litigation Settlement Entity Central Index Key Entity Central Index Key Redeemable preferred stock, shares authorized (in shares) Temporary Equity, Shares Authorized Weighted average exercise price (in dollar per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Entity Emerging Growth Company Entity Emerging Growth Company Encumbrances SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Amount of Encumbrances Holiday Holiday Acquisitions Holdings LLC [Member] Counterparty whose affiliates or subsidiaries manage properties for the Company. 2024 Long-term Debt, Maturities, Repayments of Principal in Year Five Revenues Disposal Group, Including Discontinued Operation, Revenue [Abstract] Disposal Group, Including Discontinued Operation, Revenue Amortization of equity-based compensation Share-based Payment Arrangement, Noncash Expense Manor at Oakridge Manor at Oakridge [Member] Independent living property located in Harrisburg, PA. Derivative [Table] Derivative [Table] State and Local Jurisdiction State and Local Jurisdiction [Member] Income Taxes Income Tax, Policy [Policy Text Block] Greenwood Terrace Greenwood Terrace [Member] Greenwood Terrace [Member] Durham Regent Durham Regent [Member] Independent living property located in Durham, NC. Level 2 Fair Value, Inputs, Level 2 [Member] Term of lease agreements (years) Lease period Lessee, Operating Lease, Term of Contract Antidilutive Securities [Axis] Antidilutive Securities [Axis] Amortization of deferred revenue, net Increase (Decrease) in Deferred Revenue Concentration Risk Type [Axis] Concentration Risk Type [Axis] Managed Independent Living Managed Independent Living [Member] Managed Independent Living Rent collected in advance Advance Rent Windward Palms Windward Palms [Member] Windward Palms [Member] Liabilities, Redeemable Preferred Stock and Equity Liabilities and Equity [Abstract] St Joseph, MO St Joseph, MO [Member] City and state where property is located. Disposals and other SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Other Deduction Unusual or Infrequent Items, or Both [Abstract] Unusual or Infrequent Items, or Both [Abstract] Total other comprehensive loss Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Fleming Point Fleming Point [Member] Independent living property located in Greece, NY. Derivative Contract [Domain] Derivative Contract [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Richardson, TX Richardson, TX [Member] City and state where property is located. Long term debt Total outstanding face amount Long-term Debt Loss on extinguishment of debt Disposal Group, Including Discontinued Operation, Gain (Loss) on Extinguishment of Debt Disposal Group, Including Discontinued Operation, Gain (Loss) on Extinguishment of Debt 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Four Segment Reporting Segment Reporting, Policy [Policy Text Block] Impairment of real estate held for sale SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Amount Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Number of properties impacted by hurricane (property) Number of Properties Impacted by Hurricane Number of Properties Impacted by Hurricane Denver, CO Denver, CO [Member] Denver, CO [Member] Right-of-Use Asset Right-of-Use Asset [Member] Right-of-Use Asset Total outstanding face amount Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Kirkwood Corners Kirkwood Corners [Member] Assisted living/memory care property located in Lee, NH. Provision for bad debt Accounts Receivable, Credit Loss Expense (Reversal) Subsequent Event [Table] Subsequent Event [Table] Simi Hills Simi Hills [Member] Independent living property located in Simi Valley, CA.. Unrecognized compensation expense, period for recognition (years) Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Accounting Policies [Abstract] Redeemable preferred stock, fair value Temporary Equity, Liquidation Preference Courtyards at River Park Courtyards [Member] Assisted living/memory care property located in Fort Worth, TX. Real Estate Investment Real Estate Investment [Member] Estimated Future Amortization of Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Gain on lease termination Gain (Loss) on Termination of Lease Loss before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Kihei, HI Kihei, HI [Member] Kihei, HI [Member] Sarasota, FL Sarasota, FL [Member] City and state where property is located. General and administrative expense Disposal Group, Including Discontinued Operation, General and Administrative Expense Payment of deferred financing costs, net Payments of deferred financing costs, net Payments of Financing Costs Rock Creek Rock Creek [Member] Independent living property located in Hillsboro, OR. Desoto Beach Club Desoto Beach Club [Member] Independent living property located in Sarasota, FL. Pueblo Regent Pueblo Regent [Member] Independent living property located in Pueblo, CO. Entity Address, Address Line One Entity Address, Address Line One Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Geographical [Domain] Geographical [Domain] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Gross carrying amount SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Estimated length of stay of residents (months) Average Length of Stay of Residents The average length of stay of residents at a property. Entity Address, State or Province Entity Address, State or Province Operating Segments Operating Segments [Member] Weighted Average Weighted Average [Member] Total outstanding face amount Long-term Debt, Maturities, Repayments of Principal and Balloon Payments Long-term Debt, Maturities, Repayments of Principal and Balloon Payments Net cash provided by (used in) investing activities Decrease to net cash provided by investing activities Net Cash Provided by (Used in) Investing Activities Furniture, Fixtures and Equipment SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of 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. Excludes real estate not held as an investment or interest. Jackson Oaks Jackson Oaks [Member] Independent living property located in Paducah, KY. Transactions with affiliates [Abstract] Related Party Transaction [Line Items] Bend, OR Bend, OR [Member] Bend, OR [Member] Oklahoma City, OK Oklahoma City, OK [Member] Oklahoma City, OK [Member] Redeemable Preferred Stock Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block] Heritage Oaks Heritage Oaks [Member] Independent living property located in Richmond, VA. Lemoyne, PA Lemoyne, PA [Member] City and state where property is located. Segment NOI Net Operating Income [Member] Net operating income (NOI) during the period when it serves as a benchmark in a concentration of risk calculation. NOI is defined by the Company as total revenues less property-level operating expenses, which include property management fees and travel cost reimbursements to affiliates. Income Tax Authority [Axis] Income Tax Authority [Axis] General and administrative expense General and Administrative Expense Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Sales and/or transfers to assets held for sale SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Investment in Real Estate Sold Life on Which Depreciation in Income Statement is Computed SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Life Used for Depreciation Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Summerfield Summerfield [Member] Assisted living/memory care property located in Bradenton, FL. Termination fee to affiliate Termination fee to affiliate Total Termination fee to affiliate Total Olympus Ranch Olympus Ranch [Member] Olympus Ranch [Member] Entity Interactive Data Current Entity Interactive Data Current Geographic Concentration Risk Geographic Concentration Risk [Member] Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Lionwood The Wellington [Member] The Wellington [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Cottonwood Heights, UT Cottonwood Heights, UT [Member] City and state where property is located. Notice period to cancel lease agreements (days) Notice Period to Cancel Lease Agreements The period of time in which residents must give notice to cancel lease agreements with the Company. Pioneer Valley Lodge Pioneer Valley Lodge [Member] Independent living property located in North Logan, UT. Las Vegas, NV Las Vegas, NV [Member] Las Vegas, NV [Member] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Property-level payroll expenses Labor and Related Expense Other assets and receivables Other Assets, Miscellaneous Weighted average exercise price (in usd per share) Options granted, weighted average exercise price (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price LEASE TERMINATION Unusual or Infrequent Items, or Both, Disclosure [Text Block] Illahee Hills Illahee Hills [Member] Independent living property located in Urbandale, IA. Land Disposal Group, Including Discontinued Operation, Land Disposal Group, Including Discontinued Operation, Land Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] Other Other Affiliates [Member] Segment revenue Revenue Benchmark [Member] Dover, NH Dover, NH [Member] Dover, NH [Member] Other income Disposal Group, Including Discontinued Operation, Other Income Grasslands Estates Grasslands Estates [Member] Independent living property located in Wichita, KS. Credit facility - letter of credit (percent) Credit Facility - Letter of Credit Percent Credit Facility - Letter of Credit Percent Palmer Hills Palmer Hills [Member] Independent living property located in Bettendorf, IA. Watermark Watermark [Member] Continuing Care Retirement Community (CCRC) rental property located in Pennsylvania. Schedule of Revenue and Expenses from Disposals Summary of Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Other Properties Other Properties [Member] Other Properties The El Dorado The El Dorado [Member] Independent living property located in Richardson, TX. Reconciliation of Statutory to Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Common stock $0.01 par value, 2,000,000,000 shares authorized, 82,964,438 and 82,148,869 shares issued and outstanding as of December 31, 2019 and 2018, respectively Common Stock, Value, Issued DEBT, NET Mortgage Notes Payable Disclosure [Text Block] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Pueblo, CO Pueblo, CO [Member] City and state where property is located. Quincy Place Quincy Place [Member] Quincy Place [Member] Hidden Lakes Hidden Lakes [Member] Independent living property located in Salem, OR. Acquisition, transaction and integration expense Acquisition, Transaction and Integration Expense [Member] Primary financial statement caption encompassing acquisition, transaction and integration expense. Income (Loss) from continuing operations attributable to common stockholders Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Expected volatility (mix of historical and implied) (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Rent increase percentage in lease agreements (in hundredths) Rent increase percentage The periodic rent increase percentage associated with the Company's lease agreements. Expected volatility, maximum (mix of historical and implied) (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Land SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Land, Amount Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Sterling Court Sterling Court [Member] Sterling Court [Member] Jordan Oaks Jordan Oaks [Member] Independent living property located in Cary, NC. Net real estate investments Disposal Group, Including Discontinued Operation, Real Estate Investments, Net Disposal Group, Including Discontinued Operation, Real Estate Investments, Net Management fee rate payable (in hundredths) Property Management Fee, Percent Fee Weighted average number of shares outstanding, Basic (shares) Weighted Average Number of Shares Outstanding, Basic Operating lease, right of use asset Operating Lease, Right-of-Use Asset Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Essex House Essex House [Member] Independent living property located in Lemoyne, PA. Equity Components [Axis] Equity Components [Axis] Santa Clara, CA Santa Clara, CA [Member] City and state where property is located. Acquisition, transaction, and integration expense Business Combination, Acquisition Related Costs Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Forfeited in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Capital expenditures Payments for Capital Improvements Federal Current Federal Tax Expense (Benefit) Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Depreciation and amortization Depreciation, Depletion and Amortization Nonqualified Stock Option and Incentive Award Plan Nonqualified Stock Option and Incentive Award Plan [Member] Equity-based compensation arrangement plan which provides for the grant of equity-based awards, including restricted stock, stock options, stock appreciation rights, performance awards, tandem awards and other equity-based and non-equity based awards, in each case to the Manager, and to the directors, officers, employees, service providers, consultants and advisor of the Manager who perform services for the Company, and to the Company's directors, officers, service providers, consultants and advisors. Forecast Forecast [Member] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Variable Rate [Axis] Variable Rate [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Vista de la Montana Vista de la Montana [Member] Independent living property located in Surprise, AZ. Related Party Transaction [Axis] Related Party Transaction [Axis] Non-cash termination fee to affiliate Termination fee to affiliate - Non-cash Termination fee to affiliate - Non-cash Deferred tax assets: Deferred Tax Assets, Net [Abstract] New Bern, NC New Bern, NC [Member] City and state where property is located. Corporate Office Corporate Office [Member] Corporate Office Net cash provided by operating activities Decrease to net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Dividends declared - equity awards Dividend, Share-based Payment Arrangement, Cash Normal, IL Normal, IL [Member] City and state where property is located. Orchid Terrace Orchid Terrace [Member] Independent living property located in St Louis, MO. 2020 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Federal Funds Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Media, PA Media, PA [Member] City and state where property is located. Stock Options Share-based Payment Arrangement, Option [Member] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Deferred financing costs Debt Issuance Costs, Net Indigo Pines Indigo Pines [Member] Indigo Pines [Member] Accumulated depreciation Disposal Group, Including Discontinued Operation, Buildings, Improvements and Other, Accumulated Depreciation Disposal Group, Including Discontinued Operation, Buildings, Improvements and Other, Accumulated Depreciation Hilton Head, SC Hilton Head, SC [Member] Hilton Head, SC [Member] Amended and Restated Facility Amended and Restated Facility [Member] Amended and Restated Facility Change in federal tax rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Hedging Relationship [Axis] Hedging Relationship [Axis] Other Properties and Managed Independent Living Other Properties and Managed Independent Living [Member] Other Properties and Managed Independent Living Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Income Statement [Abstract] Related Party Transactions [Abstract] Restricted stock awards issued Stock Issued During Period, Value, Restricted Stock Award, Gross Valuation allowance Less valuation allowance Deferred Tax Assets, Valuation Allowance Resident fees and services Resident Fees and Services [Member] Resident Fees and Services Ocean Springs, MS Ocean Springs, MS [Member] City and state where property is located. Eau Claire, WI Eau Claire, WI [Member] City and state where property is located. Other fixed assets Other Assets [Member] Land Land [Member] The Gardens The Gardens [Member] Assisted living/memory care property located in Ocean Springs, MS. Corvallis, OR Corvallis, OR [Member] City and state where property is located. 2021 Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Two Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Year Two Boynton Beach, FL Boynton Beach, FL [Member] Boynton Beach, FL [Member] Mortgage Notes Payable Mortgages Mortgages [Member] The Jefferson The Jefferson [Member] The Jefferson [Member] Unusual or Infrequent Item, or Both [Table] Unusual or Infrequent Item, or Both [Table] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Grants in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Concentration Risk [Line Items] Concentration Risk [Line Items] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Depreciation and amortization Disposal Group, Including Discontinued Operation, Depreciation and Amortization Interest rate used in calculation of annual incentive compensation paid to Manager (in hundredths) 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. Thereafter Lessor, Operating Lease, Payments to be Received, Thereafter Crescent Heights Crescent Heights [Member] Crescent Heights [Member] Weighted average number of shares outstanding, Diluted (shares) Weighted average number of shares outstanding, Diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restricted stock awards issued (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Cash Flows From Financing Activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Discontinued operations, diluted (in dollars per share) Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Accrued Expenses and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Total Assets Assets Assets Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Entity Shell Company Entity Shell Company Operating lease, liability Operating lease liability Operating Lease, Liability Income Taxes [Table] Income Taxes [Table] Income Taxes RECEIVABLES AND OTHER ASSETS, NET Other Assets Disclosure [Text Block] Performance period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Summary of Outstanding Options Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Subsequent Event Subsequent Event [Member] Erie, PA Erie, PA [Member] Erie, PA [Member] Warner, NH Warner, NH [Member] City and state where property is located. Variable Rate [Domain] Variable Rate [Domain] General and administrative expense General and Administrative Expense [Member] Restricted Stock Restricted Stock [Member] 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four Mortgage interest payable Interest Payable Pennsylvania PENNSYLVANIA Due to affiliates Increase (Decrease) in Due to Affiliates Concord, NC Concord, NC [Member] Concord, NC [Member] Sheldon Oaks Sheldon Oaks [Member] Independent living property located in Eugene, OR. SEGMENT REPORTING Segment Reporting Disclosure [Text Block] Cherry Laurel Cherry Laurel [Member] Independent living property located in Tallahassee, FL. Oregon OREGON Discontinued Operations Discontinued Operations [Member] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Santa Cruz, CA Santa Cruz, CA [Member] City and state where property is located. Shads Landing Shads Landing [Member] Shads Landing [Member] Real Estate Intangibles [Abstract] Finite-Lived Intangible Assets, Net [Abstract] Buford, GA Buford, GA [Member] Buford, GA [Member] Transaction Fee to Affiliate Management and Investment Advisory Fees, Policy [Policy Text Block] Class of Stock [Domain] Class of Stock [Domain] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Options exercisable (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Number of additional senior housing properties sold (property) Number Of Additional Real Estate Properties Sold Number Of Additional Real Estate Properties Sold Total expenses Disposal Group, Including Discontinued Operation, Operating Expense Risks and Uncertainties [Abstract] Total expenses Other Cost and Expense, Operating Proceeds from the sale of real estate, net Proceeds from Sale of Real Estate Held-for-investment Restricted stock awards issued (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross 2024 Lessor, Operating Lease, Payments to be Received, Five Years Entity File Number Entity File Number Holiday Hills Estates Holiday Hills Estates [Member] Holiday Hills Estates [Member] Boyertown, PA Boyertown, PA [Member] City and state where property is located. 2020 Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Next Twelve Months Long-term Debt, Maturities, Repayments of Principal and Balloon Payments in Next Twelve Months Middleton, WI Middleton, WI [Member] Middleton, WI [Member] Pinewood Hills Pinewood Hills [Member] Independent living property located in Flower Mound, TX. Real estate investments: Real Estate Investment Property, Net [Abstract] Blue Harbor Blue Harbor [Member] Blue Harbor [Member] Forfeited in period (shares) Forfeited in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period 2022 Lessor, Operating Lease, Payments to be Received, Three Years Gain (Loss) on sale of real estate Gains (Losses) on Sales of Investment Real Estate Document Fiscal Period Focus Document Fiscal Period Focus Augustine Landing Augustine Landing [Member] Augustine Landing [Member] Receivables and Other Assets [Abstract] Other Assets [Abstract] Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Product and Service [Domain] Product and Service [Domain] Management and Lease Agreements [Abstract] Related Party Transaction, Due from (to) Related Party [Abstract] Fair Value Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Kingwood, TX Kingwood, TX [Member] Kingwood, TX [Member] Loss from discontinued operations Loss from discontinued operations Income (Loss) from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Real Estate Properties [Line Items] Real Estate Properties [Line Items] Bridge Park Bridge Park [Member] Bridge Park [Member] Lodge at Cold Spring Lodge at Cold Spring [Member] Independent living property located in Rocky Hill, CT. Operating Activities [Domain] Operating Activities [Domain] Statement [Line Items] Statement [Line Items] Hedging Designation [Domain] Hedging Designation [Domain] Reimbursement of property-Level payroll expenses under property management agreement 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. Management fees under management agreement 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. Extension period after initial term of Property Management Agreements (years) 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. Deltona, FL Deltona, FL [Member] Deltona, FL [Member] Fair Value Disclosures [Abstract] Summarized Quarterly Financial Data [Abstract] Selected Quarterly Financial Information [Abstract] Dividends declared per share of common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Earnings per Share Earnings Per Share, Policy [Policy Text Block] Plan Name [Axis] Plan Name [Axis] Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract] Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract] Amortization of premium on mortgage notes payable Amortization of Debt Discount (Premium) Omaha, NE Omaha, NE [Member] Omaha, NE [Member] Cash Flows From Operating Activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Weighted Average Maturity (Years) Debt Instrument, Weighted Average Maturity Period The weighted average period until maturity of debt instruments, in PnYnMnDTnHnMnS' format. REAL ESTATE INVESTMENTS Real Estate Disclosure [Text Block] Amendment Flag Amendment Flag Real Estate Intangibles Schedule of Finite-Lived Intangible Assets [Table Text Block] Golden Living Golden Living [Member] Assisted living/memory care property located in Taylorsville, UT. Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Texas TEXAS Legacy at Georgtown Legacy at Georgetown [Member] Legacy at Georgetown [Member] Common stock, shares outstanding (in shares) Equity, Beginning Balance (in shares) Equity, Ending Balance (in shares) Common Stock, Shares, Outstanding Level 1 Fair Value, Inputs, Level 1 [Member] Roanoke, VA Roanoke, VA [Member] Roanoke, VA [Member] Gig Harbor, WA Gig Harbor, WA [Member] Gig Harbor, WA [Member] Dividends declared Dividends Proceeds from sale of real estate Proceeds from Sale of Real Estate Clarksville, TN Clarksville, TN [Member] City and state where property is located. Capital Improvement and Repair Commitments [Abstract] Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract] Line of credit facility, fair value of amount outstanding Line of Credit Facility, Fair Value of Amount Outstanding Percentage of real estate investments managed and operated (in hundredths) Percentage of real estate investments managed and operated The percentage of real estate investments (based on their carrying value) managed and operated by property managers. Other intangibles Other Intangible Assets [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Proceeds from mortgage notes payable Proceeds from Notes Payable Barkley Place Barkley Place [Member] Assisted living/memory care property located in Fort Myers, FL. Director's shares issued Issuance of common stock and exercise of options Stock Issued During Period, Value, Issued for Services Total future minimum lease payments Lessee, Operating Lease, Liability, Payments, Due Chateau Ridgeland Chateau Ridgeland [Member] Independent living property located in Ridgeland, MS. Prepaid expenses Prepaid Expense Property Managers Property Managers [Member] Affiliates of Fortress Investment Group, LLC. that are party to Property Management Agreements with the Company. Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Real Estate Investments Schedule of Real Estate Properties [Table Text Block] The Bentley The Bentley [Member] Independent living property located in Dallas, TX. Additional paid-in capital Additional Paid in Capital Echo Ridge Echo Ridge [Member] Echo Ridge [Member] SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] Grants in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Entity Current Reporting Status Entity Current Reporting Status Derivative, cap interest rate Derivative, Cap Interest Rate Schedule of Future Contract Minimum Rents Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block] State and local Deferred State and Local Income Tax Expense (Benefit) Income (loss) from continuing operations attributable to common stockholders, basic (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Line of credit facility, expiration period (years) Line of Credit Facility, Expiration Period Name of Property [Axis] Name of Property [Axis] Percentage used in calculation of annual incentive compensation paid to Manager (in hundredths) 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. Durham, NC Durham, NC [Member] City and state where property is located. Common Stock Common Stock [Member] Income (Loss) from continuing operations Income (Loss) from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent 2024 Finite-Lived Intangible Assets, Amortization Expense, Year Five Waterview Court The Waterford [Member] The Waterford [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Deferred rent Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Weighted average number of shares of common stock outstanding Weighted average number of shares of common stock outstanding Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Reimbursement for tasks and other services performed under the management agreement Reimbursement for Tasks and Other Services Performed Under the Management Agreement [Member] Reimbursement for Tasks and Other Services Performed Under the Management Agreement Product and Service [Axis] Product and Service [Axis] Dividends declared on redeemable preferred stock Redeemable Preferred Stock Dividends, Declared Redeemable Preferred Stock Dividends, Declared Entity Small Business Entity Small Business Real Estate and Accumulated Depreciation [Abstract] Real Estate [Abstract] Murray, UT Murray, UT [Member] Murray, UT [Member] Entity Filer Category Entity Filer Category Federal income tax basis SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis Income (loss) from continuing operations attributable to common stockholders, diluted (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Total deferred tax liabilities Deferred Tax Liabilities, Gross Other expense Disposal Group, Including Discontinued Operation, Other Expense Interest rate swap Interest Rate Swap [Member] Total Liabilities, Redeemable Preferred Stock and Equity Liabilities and Equity Ground lease intangibles Ground Lease Intangibles [Member] Leases acquired as part of a real property acquisition at ground lease rate. Income Tax Disclosure [Abstract] Sales and/or transfers to assets held for sale SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Cost of Investment in Real Estate Sold Number of options converted in connection with spin-off (in shares) Number of options converted in connection with spin-off Number of options held by the Manager, or by the directors, officers or employees of the Manager, that were converted into an adjusted option in connection with the spin-off. Chateau at Harveston Chateau at Harveston [Member] Chateau at Harveston [Member] Percentage of total revenues (percent) Concentration Risk, Percentage Poughkeepsie, NY Poughkeepsie, NY [Member] City and state where property is located. Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Straight-line rent receivables Deferred Rent Asset, Net, Current Golden Oaks Golden Oaks [Member] Golden Oaks [Member] Redeemable Preferred Stock Redeemable Preferred Stock [Member] Net real estate property Real Estate Investment Property, Net Philadelphia, PA Philadelphia, PA [Member] Philadelphia, PA [Member] Document Fiscal Year Focus Document Fiscal Year Focus State and local Current State and Local Tax Expense (Benefit) Other expense Other Operating Income (Expense), Net Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Revenues Revenues [Abstract] Revenues [Abstract] Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Derivative, loss on derivative Derivative, Loss on Derivative Options vested in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Loss carryforwards Operating Loss Carryforwards Award Type [Axis] Award Type [Axis] Rental revenue Disposal Group, Including Discontinued Operation, Rental Income Acquired lease and other intangible assets Disposal Group, Including Discontinued Operation, Acquired Lease and Other Intangible Assets Disposal Group, Including Discontinued Operation, Acquired Lease and Other Intangible Assets Liabilities from discontinued operations Liabilities from discontinued operations Disposal Group, Including Discontinued Operation, Liabilities Performance Stock Units Performance Stock Units [Member] Performance Stock Units Pine Rock Manor Pine Rock Manor [Member] Assisted living/memory care property located in Warner, NH. 2020 Lessor, Operating Lease, Payments to be Received, Next Twelve Months Geographical [Axis] Geographical [Axis] Number of senior housing properties (property) Number of Real Estate Properties Accumulated Deficit Retained Earnings [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Document Period End Date Document Period End Date Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Statement [Table] Statement [Table] Flower Mound, TX Flower Mound, TX [Member] City and state where property is located. Agawam, MA Agawam, MA [Member] Agawam, MA [Member] Interest rate caps Interest Rate Cap [Member] Entity Registrant Name Entity Registrant Name The Remington The Remington [Member] The Remington [Member] Estimated remaining useful life (years) Property, Plant and Equipment, Useful Life North Carolina NORTH CAROLINA Remeasurement of deferred tax assets Valuation Adjustment on Deferred Tax Assets Represents the valuation adjustment on deferred tax assets due to changes in the U.S. federal tax rate. Discontinued operations, basic (in dollars per share) Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Real estate investments: Disposal Group, Including Discontinued Operation, Real Estate Investments [Abstract] Disposal Group, Including Discontinued Operation, Real Estate Investments Maximum Maximum [Member] State and local taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three Building improvements Building Improvements [Member] Net income (loss) attributable to common stockholders Net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Domestic Tax Authority Domestic Tax Authority [Member] Entity Public Float Entity Public Float Dispositions [Line Items] Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Allowance for Doubtful Accounts and Related Provision for Resident Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] QUARTERLY FINANCIAL INFORMATION (UNAUDITED) Quarterly Financial Information [Text Block] 2023 Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in the Year Four Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid in the Year Four Canyon Creek Canyon Creek [Member] Assisted living/memory care property located in Cottonwood Heights, UT. Number of reportable segments (segment) Number of reportable business segments (segment) Number of Reportable Segments Jacksonville, FL Jacksonville, FL [Member] Jacksonville, FL [Member] Capital expenditures Capital Expenditures The cash outflow from the acquisition of (1) long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale and (2) the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner. Percentage of outstanding stock (percent) Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Consideration received, lease termination agreement Consideration Received, Lease Termination Agreement Consideration Received, Lease Termination Agreement Accrued expenses and other liabilities Disposal Group, Including Discontinued Operation, Accrued Expenses and Other Liabilities Disposal Group, Including Discontinued Operation, Accrued Expenses and Other Liabilities Unused borrowing capacity, fee Debt Instrument, Unused Borrowing Capacity, Fee Number of properties held for sale Number of properties held for sale The number of properties held for sale. Range [Domain] Statistical Measurement [Domain] Fixed Rate Fixed Rate Mortgage Notes Payable [Member] Aggregate mortgage notes payable with fixed interest rates. Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Village Place Village Place [Member] Assisted living/memory care property located in Port Charlotte, FL. Options exercisable, intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Heritage Place Heritage Place [Member] Assisted living/memory care property located in Bountiful, UT. Copley Place Copley Place [Member] Copley Place [Member] Security deposit Security deposits Security Deposit Desert Flower Desert Flower [Member] Assisted living/memory care property located in Scottsdale, AZ. 2023 Lessor, Operating Lease, Payments to be Received, Four Years