Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Denominators: Weighted Average Number of Shares Outstanding, Diluted [Abstract] 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] Student Housing Student Housing [Member] Student Housing Title of 12(b) Security Title of 12(b) Security Net 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 Segment Reporting [Abstract] Common shares of beneficial interest, $0.001 par value per share; 25,000,000 shares authorized; 22,831,019 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] Restatement Determination Date Restatement Determination Date Amortization of loan origination and exit fees Amortization of Deferred Loan Origination Fees, Net Industrial Industrial Property [Member] 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 Weighted average all in yield Loans Receivable, Average All-In Yield, Percentage Loans Receivable, Average All-In Yield, Percentage Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Property management agreement, termination notice period (in days) Property Management Agreement, Termination Notice Period Property Management Agreement, Termination Notice Period Proceeds from outstanding principal amount Proceeds from Principal Repayment, Loan and Lease, Held-for-Investment Income from loan investments, net Net Investment Income 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 Cumulative distributions Cumulative Dividends Self Storage Self Storage [Member] Self Storage 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 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 Tremont Realty Advisors LLC Tremont Realty Advisors LLC [Member] Tremont Realty Advisors LLC [Member] 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] Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Write offs Mortgage Loans On Real Estate, Write Offs Mortgage Loans On Real Estate, Write Offs Entity Address, City or Town Entity Address, City or Town Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 5 Risk Level, Five [Member] Risk Level, Five [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] 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 Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net 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] Total liabilities Real Estate Owned, Liabilities Real Estate Owned, Liabilities Loans held for investment, net Carrying value Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Wells Fargo Master Repurchase Facility Wells Fargo [Member] Wells Fargo Write offs Financing Receivable, Allowance for Credit Loss, Writeoff Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Trustee Compensation Arrangements Trustee Compensation Arrangements [Member] Trustee Compensation Arrangements 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] Allowance for credit losses Beginning balance Ending balance Allowance for credit losses 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] Reimbursement of shared services expenses Reimbursement Of Shared Services Expenses Reimbursement Of Shared Services Expenses 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] Weighted average floor Loans Receivable Weighted Average Floor Percentage Loans Receivable Weighted Average Floor Percentage OTHER EXPENSES: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Remaining Maturity (years) Debt Instrument, Term Real estate owned, net Real estate owned, net Real Estate Owned, Net Real Estate Owned, Net Plano, Texas Plano, TX [Member] Plano, TX 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 Revenue from real estate owned Lease Income Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol 1 Risk Level, One [Member] Risk Level, One [Member] 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] Unfunded loan commitments Financing Receivable, Unfunded Loan Commitments Financing Receivable, Unfunded Loan Commitments Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Management Services Management Services [Member] Management Services Realized loss Financing Receivable, Realized Gain (Loss) Financing Receivable, Realized Gain (Loss) Total Long-Term Debt, Gross Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Total Loans Held For Investment, Net, Including Unfunded Loan Commitments [Member] Loans Held For Investment, Net, Including Unfunded Loan Commitments Related Party Transactions [Abstract] Related Party Transactions [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table] Compensation Amount Outstanding Recovery Compensation Amount Midwest Midwest [Member] Midwest [Member] Individual: Individual [Axis] Weighted average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Repayment of loans held for investment Repayment Of Loan Held For Investment Repayment Of Loan Held For Investment Distribution per share, paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Loans held for investment Accrued interest receivable Amortized cost Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Underlying Security Market Price Change Underlying Security Market Price Change, Percent Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Shares owned (in shares) Related Party Transaction, Shares Owned By Related Party Related Party Transaction, Shares Owned By Related Party Mixed Use Mixed Use [Member] Mixed Use Base management fees Base Management Fee Base Management Fee Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Repayments Mortgage Loan Repayments, Gross Mortgage Loan Repayments, Gross 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] Carlsbad, CA. Carlsbad, CA. [Member] Carlsbad, CA. 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 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 Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Segment Reporting Segment Reporting [Text Block] Minimum Minimum [Member] Unfunded Loan Commitments Unfunded Loan Commitments [Member] Unfunded Loan Commitments Expiration Date Trading Arrangement Expiration Date BMO Facility BMO [Member] BMO 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] Adam Portnoy Adam Portnoy [Member] Adam Portnoy Secured Financing Facilities Financial Liabilities Fair Value Disclosure 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] 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 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 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] 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 Total other expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] West West [Member] West [Member] Distributions Distributions Total Distribution Dividends, Common Stock, Cash Total shareholders' equity Beginning balance Ending balance Equity, Attributable to Parent Loans Held for Investment, net Loans Held For Investment, Net [Member] Loans Held For Investment, Net 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] 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] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Principal Balance Assets Sold Under Agreements To Repurchase, Principal Amount Assets Sold Under Agreements To Repurchase, Principal Amount 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] Total/weighted average Mortgages And Related Assets [Member] Mortgages And Related Assets [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] Wells Fargo Master Repurchase Facility Master Repurchase Agreements [Member] Master Repurchase Agreements 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 Management Agreement with Tremont Management Agreement [Text Block] Management Agreement [Text Block] All Individuals All Individuals [Member] 3 Risk Level, Three [Member] Risk Level, Three [Member] Distributions Payments of Dividends South South [Member] South [Member] 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 Retail Retail [Member] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Assets Sold under Agreements to Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line 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 Measurement Basis [Axis] Measurement Basis [Axis] Accounts payable, accrued liabilities and other liabilities Real Estate Owned, Accrued Expenses And Other Liabilities Real Estate Owned, Accrued Expenses And Other Liabilities UBS Master Repurchase Facility Asset Specific Financing [Member] Asset Specific Financing 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 Land, building and improvements Real Estate Owned, Gross Real Estate Owned, Gross Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] 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] Annualized base management fee (as a percent) Base Management Fee, Percent Fee, Annualized Base Management Fee, Percent Fee, Annualized Payments of deferred financing costs Payments of Debt Issuance Costs Net income per common share - diluted (in dollars per share) Net 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 Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Total Shareholder Return Amount Total Shareholder Return Amount (Reversal of) provision for credit losses Provision for (reversal of) credit losses Reversal of credit losses Financing Receivable, Credit Loss, Expense (Reversal) Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Incentive fees Incentive Fee Expense Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 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 2029 Long-Term Debt, Maturity, Year Three 2 Risk Level, Two [Member] Risk Level, Two [Member] 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] 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 Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Fair Value Estimate of Fair Value Measurement [Member] Issuance of shares, net Stock Issued During Period, Value, New Issues 4 Risk Level, Four [Member] Risk Level, Four [Member] Acquired real estate leases, net Acquired real estate leases, net Real Estate Investment, Other Acquired Real Estate Leases, Net Acquired Real Estate Leases, Net Realized loss Financing Receivable, Allowance for Credit Loss, Realized Loss On Loans Held For Investment Financing Receivable, Allowance for Credit Loss, Realized Loss On Loans Held For Investment Total assets Real Estate Owned, Assets Real Estate Owned, Assets 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] 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 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 Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Share repurchases (in shares) Share repurchases (in shares) Stock Repurchased During Period, Shares Dallas, TX Dallas, TX [Member] Dallas, TX 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 Entity File Number Entity File Number 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] Proceeds from secured financing facilities Proceeds From Securities Sold Under Agreements To Repurchase Proceeds From Securities Sold Under Agreements To Repurchase 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 Quarterly base management fee (as a percent) Base Management Fee, Percent Fee, Quarterly Base Management Fee, Percent Fee, Quarterly 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 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] Property Management Services Property Management Services [Member] Property Management Services Fair Value as of Grant Date Award Grant Date Fair Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Construction Supervision Services Construction Supervision Services [Member] Construction Supervision Services 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 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] Transferrable Rights Offering Transferrable Rights Offering [Member] Transferrable Rights Offering 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] Outstanding common shares (as a percent) Related Party Transaction, Common Shares Ownership Percentage Related Party Transaction, Common Shares Ownership Percentage 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] All Award Types Award Type [Domain] Weighted average coupon rate Loans Receivable, Weighted Average Coupon Rate, Percentage Loans Receivable, Weighted Average Coupon Rate, Percentage 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 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 Geographical [Axis] Geographical [Axis] 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 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 Additional funding Mortgage Loan, Additional Funding, Net Mortgage Loan, Additional Funding, Net 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] Share based compensation Share-Based Payment Arrangement, Noncash Expense Maximum Facility Size Maximum facility size Assets Sold Under Agreements To Repurchase, Authorized Amount Assets Sold Under Agreements To Repurchase, Authorized Amount 2027 Long-Term Debt, Maturity, Year One Net income per common share - basic (in dollars per share) Net income per common share - basic (in dollars per share) Earnings Per Share, Basic 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 Repurchase of common shares Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] 2030 and thereafter Long-Term Debt, Maturity, Year Four And Thereafter Long-Term Debt, Maturity, Year Four And Thereafter Award Type Award Type [Axis] Medical Office Medical Office [Member] Medical Office 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) 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 Repayments Mortgage Loan Repayments, Deferred Fees And Other Items Mortgage Loan Repayments, Deferred Fees And Other Items Deferred interest capitalized to loans held for investment Deferred Interest Capitalized to Loans Held For Investment Deferred Interest Capitalized to Loans Held For Investment 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 Equity Awards Adjustments Equity Awards Adjustments [Member] Repayments under secured financing facilities Repayments For Securities Sold Under Agreements To Repurchase Repayments For Securities Sold Under Agreements To Repurchase Total liabilities and shareholders' equity Liabilities and Equity Expenses from real estate owned Expenses From Real Estate Owned Expenses From Real Estate Owned 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 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 Tabular List, Table Tabular List [Table Text Block] 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 Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Officers and Certain Other Employees Officers And Certain Other Employees [Member] Officers And Certain Other Employees 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 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 Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Total loan commitments Loans Held-For-Investment, Commitments Loans Held-For-Investment, Commitments 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 East East [Member] East [Member] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount 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 Coupon Rate Assets Sold under Agreements to Repurchase, Interest Rate Straight line rent receivables Real Estate Investment, Other, Straight Line Rent Receivable Real Estate Investment, Other, Straight Line Rent Receivable 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] 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 Share grants (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation, Depletion and Amortization 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 Additional funding Mortgage Loan, Additional Funding, Deferred Fees And Other Items Mortgage Loan, Additional Funding, Deferred Fees And Other Items Income tax (expense) benefit 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) increase 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 UBS Master Repurchase Facility UBS [Member] UBS Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Net income Net income (loss) Net income Net income Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] 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 Real estate owned improvements Payment for Acquisition, Real Estate, Held-for-Investment Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Citibank Master Repurchase Facility Citibank [Member] Citibank Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year The RMR Group Inc The RMR Group Inc [Member] The RMR Group Inc INCOME FROM INVESTMENTS: Revenues [Abstract] Write offs SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write Offs SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write Offs Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]