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Real Estate Owned - D.C. Hotel - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Feb. 28, 2025 | Dec. 31, 2024 | May 24, 2021
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Commercial mortgage loans, net | $ 8,303,645 |  |  |  | $ 8,303,645 |  |  |  | $ 7,104,156 |  |
Debt related to real estate owned, held for investment, net | 402,945 |  |  |  | 402,945 |  |  |  | 324,587 |  |
Depreciation and amortization on real estate owned | 2,783 |  | $ 2,342 |  | 7,770 |  | $ 9,285 |  |  |  |
Real estate owned, accumulated depreciation | 31,035 |  |  |  | $ 31,035 |  |  |  | 23,266 |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  | Secured Overnight Financing Rate [Member] | Secured Overnight Financing Rate [Member] |  |  |  |  |  |
Debt instrument, covenant, unencumbered liquidity, threshold | 100,000 |  |  |  | $ 100,000 |  |  |  |  |  |
Debt instrument, covenant, net worth threshold | 600,000 |  |  |  | 600,000 |  |  |  |  |  |
Total net revenue | 700 |  | $ 1,900 |  | 6,900 |  | $ 8,100 |  |  |  |
Subordinate Mortgage Portfolio Segment |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Commercial mortgage loans, net | 153,790 | [1] |  |  | 153,790 | [1] |  | $ 24,000 | 388,809 | [1] |
Commercial Mortgage and Subordinated Portfolio Segment |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Commercial mortgage loans, net | 61,200 |  |  |  | 61,200 |  |  |  | 8,300 |  |
Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum amount of borrowings | 388,400 |  |  |  | $ 388,400 |  |  |  |  |  |
Line of credit facility, option to extend, period |  |  |  |  | 1 year |  |  |  |  |  |
Mortgages |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net | 329,800 |  |  |  | $ 329,800 |  |  |  | 252,000 |  |
Deferred financing costs | 1,100 |  |  |  | 1,100 |  |  |  | 2,000 |  |
Hotel - Washington D.C. |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net assets acquired | 158,400 |  |  |  | 158,400 |  |  |  | 157,100 |  |
Interest rate for repurchase facility |  |  |  | 3.00% |  |  |  |  |  |  |
Debt instrument, covenant, unencumbered liquidity, threshold |  |  |  | $ 10,000 |  |  |  |  |  |  |
Debt instrument, covenant, net worth threshold |  |  |  | 200,000 |  |  |  |  |  |  |
Hotel - Washington D.C. | Building |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Real estate owned, held for investment, net | 78,500 |  |  |  | 78,500 |  |  |  | 79,100 |  |
Real estate owned, accumulated depreciation | 11,000 |  |  |  | 11,000 |  |  |  | 9,100 |  |
Hotel - Washington D.C. | Furniture Fixtures and Equipment |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Real estate owned, held for investment, net | 5,900 |  |  |  | 5,900 |  |  |  | 6,000 |  |
Real estate owned, accumulated depreciation | 7,200 |  |  |  | 7,200 |  |  |  | 5,600 |  |
Hotel - Washington D.C. | Subordinate Mortgage Portfolio Segment |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net |  |  |  |  |  |  |  |  |  |  | $ 110,000
Debt related to real estate owned, held for investment, gross of deferred financing costs |  |  |  | $ 73,700 |  |  |  |  |  |  |
Hotel - Washington D.C. | Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, option to extend, period |  |  |  | 1 year |  |  |  |  |  |  |
Hotel - Washington D.C. | Mortgages |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net | 73,200 |  |  |  | 73,200 |  |  |  | 72,600 |  |
Deferred financing costs | $ 500 |  |  |  | $ 500 |  |  |  | $ 1,100 |  |
[1] | Net of $374,257 and $373,336 CECL Allowances comprised $39,257 and $30,836 General CECL Allowance in 2025 and 2024, respectively, and $335,000 and $342,500 Specific CECL Allowance in 2025 and 2024, respectively.

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