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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Cost Recovery Loans (Parenthetical) (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |
Equity contribution rate | 90.00% |  | 90.00% |
Payment in kind interest | $ 5.1 | $ 0.0 | $ 5.5 | $ 0.0
Turner Consulting |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |
Equity contribution rate | 10.00% |  | 10.00% |
Retail Center - Cincinnati, OH | Capitalization Rate |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |
Loan collateral, measurement input | 0.09 |  | 0.09 |
Residential-for-Sale - Manhattan, NY | Discount Rate |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |
Loan collateral, measurement input | 0.10 |  | 0.10 |

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