Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Denominators: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Shares owned (in shares) Related Party Transaction, Shares Owned By Related Party Related Party Transaction, Shares Owned By Related Party Hotel Hotel [Member] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Net (loss) income used in calculating net income per common share - diluted Net Income (Loss) Available to Common Stockholders, Diluted Carrying Value Reported Value Measurement [Member] Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Plano, Texas Plano, TX [Member] Plano, TX Segment Reporting [Abstract] Common shares of beneficial interest, $0.001 par value per share; 25,000,000 shares authorized; 22,665,251 and 22,584,285 shares issued and outstanding, respectively Common Stock, Value, Issued Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Additional funding Mortgage Loan, Additional Funding, Net Mortgage Loan, Additional Funding, Net Restatement Determination Date Restatement Determination Date Amortization of loan origination and exit fees Amortization of Deferred Loan Origination Fees, Net Industrial Industrial Property [Member] Weighted average maximum maturity (years) Weighted average maximum maturity (in years) Loans Receivable, Weighted Average Term Of Maturity Loans Receivable, Weighted Average Term Of Maturity Rights offering percentage (as a percent) Shares To Purchase Through Rights Offering Percentage Shares To Purchase Through Rights Offering Percentage Net income attributable to unvested share awards Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Loans Held for Investment, net Financing Receivables [Text Block] Amendment Flag Amendment Flag Originations SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, New Mortgage Loan Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Income from loan investments, net Net Investment Income Cumulative distributions Cumulative Dividends Related Person Transactions Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province Acquired real estate leases, net Acquired real estate leases, net Real Estate Investment, Other Acquired Real Estate Leases, Net Acquired Real Estate Leases, Net PEO Total Compensation Amount PEO Total Compensation Amount Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Common shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Weighted average common shares outstanding- basic (in shares) Weighted average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Accretion of purchase discount Accretion (Amortization) of Discounts and Premiums, Investments Principal Balance Debt Instrument, Collateral Amount Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Unfunded commitments Unfunded Loan Commitment [Member] Total Loans Held For Investment, Net, Including Unfunded Loan Commitments [Member] Loans Held For Investment, Net, Including Unfunded Loan Commitments Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Entity Address, City or Town Entity Address, City or Town Shares granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Medical Office Medical Office [Member] Medical Office Net (loss) income used in calculating net income per common share - basic Net Income (Loss) Available to Common Stockholders, Basic Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Straight line rental income Straight Line Rent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Loans held for investment, net Carrying value Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Repayments under secured financing facilities Repayments For Securities Sold Under Agreements To Repurchase Repayments For Securities Sold Under Agreements To Repurchase Use of Estimates Use of Estimates, Policy [Policy Text Block] Amortization of deferred financing costs Amortization of Debt Issuance Costs Related Party [Axis] Related and Nonrelated Parties [Axis] Total liabilities Real Estate Owned, Liabilities Real Estate Owned, Liabilities Allowance for credit losses Beginning balance Ending balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Document Period End Date Document Period End Date Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Shareholders' Equity Equity [Text Block] OTHER EXPENSES: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Remaining Maturity (years) Debt Instrument, Term West West [Member] West [Member] 2 Risk Level, Two [Member] Risk Level, Two [Member] Entity Shell Company Entity Shell Company Weighted Average Common Shares Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Schedule of Weighted Average Number of Common Shares Schedule of Weighted Average Number of Shares [Table Text Block] Document Fiscal Period Focus Document Fiscal Period Focus 3 Risk Level, Three [Member] Risk Level, Three [Member] Revenue from real estate owned Lease Income Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol 2030 and thereafter Long-Term Debt, Maturity, Year Four And Thereafter Long-Term Debt, Maturity, Year Four And Thereafter The RMR Group Inc The RMR Group Inc [Member] The RMR Group Inc Geographical [Domain] Geographical [Domain] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Schedule of Assets and Liabilities of Real Estate Owned Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] UBS Master Repurchase Facility Master Repurchase Agreements [Member] Master Repurchase Agreements Total Long-Term Debt, Gross Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Related Party Transactions [Abstract] Related Party Transactions [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued 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Market Price Change, Percent Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Transferrable Rights Offering Transferrable Rights Offering [Member] Transferrable Rights Offering Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Management Services Management Services [Member] Management Services Share grants Shares Granted, Value, Share-Based Payment Arrangement, after Forfeiture All Executive Categories All Executive Categories [Member] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Plan Name [Domain] Plan Name [Domain] Carrying Value Assets Sold under Agreements to Repurchase, Carrying Amount Rights Offering Rights Offering [Member] Rights Offering Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Segment Reporting Segment Reporting [Text Block] Minimum Minimum [Member] Total/weighted average Mortgages And Related Assets [Member] Mortgages And Related Assets [Member] Expiration Date Trading Arrangement Expiration Date Straight line rent receivables Real Estate Investment, Other, Straight Line Rent Receivable Real Estate Investment, Other, Straight Line Rent Receivable Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Originations SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Other Deduction Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Weighted average all in yield Loans Receivable, Average All-In Yield, Percentage Loans Receivable, Average All-In Yield, Percentage Secured Financing Facilities Financial Liabilities Fair Value Disclosure Self Storage Self Storage [Member] Self Storage Accrued interest receivable Financing Receivable, Accrued Interest, after Allowance for Credit Loss Due to related persons Other Liabilities Real Estate Owned Real Estate Owned [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 1 Risk Level, One [Member] Risk Level, One [Member] Sale of stock, percentage of ownership after transaction (as a percent) Sale of Stock, Percentage of Ownership after Transaction Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common shares, authorized (in shares) Common Stock, Shares Authorized Shares issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Exercise Price Award Exercise Price CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Document Quarterly Report Document Quarterly Report UBS Master Repurchase Facility UBS [Member] UBS Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Wells Fargo Master Repurchase Facility Asset Specific Financing [Member] Asset Specific Financing Secured Financing Agreements Debt Disclosure [Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Loans held for investment Loans Receivable, Fair Value Disclosure Net proceeds Sale of Stock, Consideration Received on Transaction Total other expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] Distributions Distributions Total Distribution Dividends, Common Stock, Cash Total shareholders' equity Beginning balance Ending balance Equity, Attributable to Parent Real Estate [Domain] Real Estate [Domain] Securities or Other Assets Sold under Agreements to Repurchase [Axis] Securities or Other Assets Sold under Agreements to Repurchase [Axis] ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Schedule of Carrying Value Excluding Allowance of Credit Losses Financing Receivable Credit Quality Indicators [Table Text Block] Insider Trading Policies and Procedures [Line Items] Weighted average floor Loans Receivable Weighted Average Floor Percentage Loans Receivable Weighted Average Floor Percentage Interest and related income Interest Income, Operating Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Annualized base management fee (as a percent) Base Management Fee, Percent Fee, Annualized Base Management Fee, Percent Fee, Annualized Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Central Index Key Entity Central Index Key Banking and Thrift, Interest [Abstract] Additional paid in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation 2026 Long-Term Debt, Maturity, Remainder of Fiscal Year Income Statement [Abstract] Income Statement [Abstract] Shareholders' equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Repayment of loans held for investment Repayment Of Loan Held For Investment Repayment Of Loan Held For Investment Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Principal Balance SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward] City Area Code City Area Code Origination of loans held for investment Payments For Originations and Acquisition of Loans Held For Investments Payments For Originations and Acquisition of Loans Held For Investments Restricted Stock Restricted Stock [Member] All Individuals All Individuals [Member] Other Other Property [Member] Distributions Payments of Dividends Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Originations SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Period Increase (Decrease) Less: interest and related expenses Interest Expense, Operating Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Assets Sold under Agreements to Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line Items] Beginning balance Ending balance Real Estate Companies, Investment In Mortgage Loans On Real Estate, Deferred Fees And Other Items Real Estate Companies, Investment In Mortgage Loans On Real Estate, Deferred Fees And Other Items Schedule of Assets Sold under Agreements to Repurchase [Table] Asset Sold under Agreement to Repurchase [Table] Issuance of shares, net (in shares) Stock Issued During Period, Shares, New Issues PEO PEO [Member] 2028 Long-Term Debt, Maturity, Year Two Purchase discount accretion SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Purchase Discount Accretion SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Purchase Discount Accretion Measurement Basis [Axis] Measurement Basis [Axis] Amortized Cost SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate, Amortized Cost [Roll Forward] SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate, Amortized Cost Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Subsequent Event Type [Domain] Subsequent Event Type [Domain] Cumulative Net Income Retained Earnings [Member] Repayments SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Collections of Principal Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Real estate owned, net Real estate owned, net Real Estate Owned, Net Real Estate Owned, Net Deferred Fees and Other Items SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate, Deferred Fees and Other Items [Roll Forward] SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate, Deferred Fees and Other Items Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Payments of deferred financing costs Payments of Debt Issuance Costs Net (loss) income per common share - diluted (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total assets Real Estate Owned, Assets Real Estate Owned, Assets Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Provision for credit losses Provision for (reversal of) credit losses Financing Receivable, Credit Loss, Expense (Reversal) Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Percentage of Value Percentage of Portfolio Mortgage Loans On Real Estate, Percentage Of Value Of Portfolio Mortgage Loans On Real Estate, Percentage Of Value Of Portfolio Incentive fees Incentive Fee Expense Real estate owned, property management and construction supervision fees Real Estate Owned, Property Management And Construction Supervision Fees Real Estate Owned, Property Management And Construction Supervision Fees Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 2029 Long-Term Debt, Maturity, Year Three Adam Portnoy Adam Portnoy [Member] Adam Portnoy Purchase of Mortgage Loans Purchase of Mortgage Loans [Member] Purchase of Mortgage Loans Financing receivable, extended maturity period (in years) Financing Receivable, Modified, Weighted-Average Term Increase from Modification CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Wells Fargo Master Repurchase Facility Wells Fargo [Member] Wells Fargo Years five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Share repurchases Share repurchases Stock Repurchased During Period, Value Unfunded loan commitments Financing Receivable, Unfunded Loan Commitments Financing Receivable, Unfunded Loan Commitments Total loan commitments Loans Held-For-Investment, Commitments Loans Held-For-Investment, Commitments Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Deferred interest capitalized to loans held for investment Deferred Interest Capitalized to Loans Held For Investment Deferred Interest Capitalized to Loans Held For Investment Fair Value Estimate of Fair Value Measurement [Member] Issuance of shares, net Stock Issued During Period, Value, New Issues Weighted average risk rating Mortgage Loans On Real Estate, Weighted Average Risk Rating Of Portfolio Mortgage Loans On Real Estate, Weighted Average Risk Rating Of Portfolio Net amortization of deferred fees Net amortization of deferred fees Amortization Of Deferred Loan Origination Fees Excluding Repayments, Net Amortization Of Deferred Loan Origination Fees Excluding Repayments, Net Management Agreement with Tremont Management Agreement [Text Block] Management Agreement [Text Block] Repayments Mortgage Loan Repayments, Deferred Fees And Other Items Mortgage Loan Repayments, Deferred Fees And Other Items Expenses from real estate owned Expenses From Real Estate Owned Expenses From Real Estate Owned ABP Trust ABP Trust [Member] ABP Trust Cumulative Distributions Accumulated Distributions in Excess of Net Income [Member] Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Sale of Stock [Axis] Sale of Stock [Axis] Multifamily Multifamily [Member] Outstanding common shares (as a percent) Related Party Transaction, Common Shares Ownership Percentage Related Party Transaction, Common Shares Ownership Percentage All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Beginning balance Ending balance Amortized Cost Amortized cost SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule of Distributions Declared Dividends Declared [Table Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Deferred interest capitalized to loans held for investment SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Deferred Interest Capitalized to Loans Held for Investment, Amortized Cost SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Deferred Interest Capitalized to Loans Held for Investment, Amortized Cost Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Base management fees Base Management Fee Base Management Fee Share repurchases (in shares) Share repurchases (in shares) Stock Repurchased During Period, Shares Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Distribution per share, declared (in dollars per share) Common Stock, Dividends, Per Share, Declared 5 Risk Level, Five [Member] Risk Level, Five [Member] Entity File Number Entity File Number Weighted average coupon rate Loans Receivable, Weighted Average Coupon Rate, Percentage Loans Receivable, Weighted Average Coupon Rate, Percentage Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Office Office Building [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Schedule of Changes to Allowance for Credit Loss Financing Receivable, Allowance for Credit Loss [Table Text Block] Common shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Basis of Presentation Business Description and Basis of Presentation [Text Block] Equity Components [Axis] Equity Components [Axis] Class of Stock [Line Items] Class of Stock [Line Items] Income taxes paid (refunded) Income Tax Paid, after Refund Received South South [Member] South [Member] Entity Interactive Data Current Entity Interactive Data Current Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Termination Date Trading Arrangement Termination Date Midwest Midwest [Member] Midwest [Member] Student Housing Student Housing [Member] Student Housing Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Number of loans Number of Loans SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Document Type Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value East East [Member] East [Member] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Principal balance Beginning balance Ending balance SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Face Amount of Mortgages Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Principal Balance Assets Sold Under Agreements To Repurchase, Principal Amount Assets Sold Under Agreements To Repurchase, Principal Amount Accounts payable, accrued liabilities and other liabilities Real Estate Owned, Accrued Expenses And Other Liabilities Real Estate Owned, Accrued Expenses And Other Liabilities Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies Commitments and Contingencies Total revenue Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accounts payable, accrued liabilities and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Counterparty Name [Axis] Counterparty Name [Axis] LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Loans Held for Investment, net Loans Held For Investment, Net [Member] Loans Held For Investment, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Level III Fair Value, Inputs, Level 3 [Member] SUPPLEMENTAL DISCLOSURES: Supplemental Cash Flow Information [Abstract] Prepaid expenses and other assets, net Real Estate Investments, Other Accounts payable, accrued liabilities and other liabilities Accounts Payable and Accrued Liabilities PEO Name PEO Name Geographical [Axis] Geographical [Axis] Tremont Realty Advisors LLC Tremont Realty Advisors LLC [Member] Tremont Realty Advisors LLC [Member] BMO Facility BMO [Member] BMO Unfunded Loan Commitments Unfunded Loan Commitments [Member] Unfunded Loan Commitments Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Due to related persons Increase (Decrease) in Due from Related Parties Entity Tax Identification Number Entity Tax Identification Number Prepaid expenses and other assets, net Prepaid Expense and Other Assets Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Grants in period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Fair Value Of Grants In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Fair Value Of Grants In Period Share based compensation Share-Based Payment Arrangement, Noncash Expense 2027 Long-Term Debt, Maturity, Year One Net (loss) income per common share - basic (in dollars per share) Earnings Per Share, Basic Repurchase of common shares Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Trustee Compensation Arrangements Trustee Compensation Arrangements [Member] Trustee Compensation Arrangements Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Assets Sold under Agreements to Repurchase, Type [Domain] Assets Sold under Agreements to Repurchase, Type [Domain] Cumulative net income Retained Earnings (Accumulated Deficit) Maximum Facility Size Maximum facility size Assets Sold Under Agreements To Repurchase, Authorized Amount Assets Sold Under Agreements To Repurchase, Authorized Amount Additional funding SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Other Addition Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Shares Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Straight line rent adjustments Straight Line Rent Adjustments Additional funding of loans held for investment Payments For Additional Originations Of Mortgage Loans Held For Investments Payments For Additional Originations Of Mortgage Loans Held For Investments Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and shareholders' equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Plan Name [Axis] Plan Name [Axis] Schedule of Loans Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Secured financing facilities, net Secured Debt, Repurchase Agreements Tabular List, Table Tabular List [Table Text Block] Quarterly base management fee (as a percent) Base Management Fee, Percent Fee, Quarterly Base Management Fee, Percent Fee, Quarterly Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative expenses General and Administrative Expense Price per share (in dollars per share) Sale of Stock, Price Per Share Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Land, building and improvements Real Estate Owned, Gross Real Estate Owned, Gross Property Management Services Property Management Services [Member] Property Management Services Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Coupon Rate Assets Sold under Agreements to Repurchase, Interest Rate Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Deferred interest capitalized to loans held for investment SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Deferred Interest Capitalized to Loans Held for Investment, Principal SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Deferred Interest Capitalized to Loans Held for Investment Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid In Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Construction Supervision Services Construction Supervision Services [Member] Construction Supervision Services 4 Risk Level, Four [Member] Risk Level, Four [Member] Share grants (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Additional funding Mortgage Loan, Additional Funding, Deferred Fees And Other Items Mortgage Loan, Additional Funding, Deferred Fees And Other Items Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation, Depletion and Amortization Proceeds from secured financing facilities Proceeds From Securities Sold Under Agreements To Repurchase Proceeds From Securities Sold Under Agreements To Repurchase Number of employees Entity Number of Employees Entity Address, Address Line Three Entity Address, Address Line Three Entity Address, Address Line Two Entity Address, Address Line Two Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit (expense) Income Tax Expense (Benefit) Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Award Timing Method Award Timing Method [Text Block] Decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Property management fee (as a percent) Property Management Fee, Percent Fee Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Numerators: Net Income (Loss) Attributable to Parent [Abstract] Less: accumulated depreciation Real Estate Owned, Accumulated Depreciation Reimbursement of shared services expenses Reimbursement Of Shared Services Expenses Reimbursement Of Shared Services Expenses Property management agreement, termination notice period (in days) Property Management Agreement, Termination Notice Period Property Management Agreement, Termination Notice Period Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Net (loss) income Net income (loss) Net income Net (loss) income Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Real estate owned improvements Payment for Acquisition, Real Estate, Held-for-Investment Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Repayments Mortgage Loan Repayments, Gross Mortgage Loan Repayments, Gross Citibank Master Repurchase Facility Citibank [Member] Citibank INCOME FROM INVESTMENTS: Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]