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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Cost Recovery Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Specific CECL allowance | $ 34,192 | $ 26,482
Mortgage, Amortized cost | Retail Center - Cincinnati, OH |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost prior to Specific CECL Allowance | 165,119 |
Specific CECL allowance | 67,000 |
Amortized cost | 98,119 |
Mezzanine Loans | Residential-for-Sale - Manhattan, NY |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost prior to Specific CECL Allowance | 295,881 |
Specific CECL allowance | 268,000 |
Amortized cost | 27,881 |
Mezzanine Loans | Office - Troy, MI |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost prior to Specific CECL Allowance | 7,500 |
Specific CECL allowance | 7,500 |
Amortized cost | 0 |
Real Estate and Mezzanine |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost prior to Specific CECL Allowance | 468,500 |
Specific CECL allowance | 342,500 |
Amortized cost | $ 126,000 |

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