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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Cost Recovery Loans (Parenthetical) (Details)	Mar. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Equity contribution rate	90.00%
Turner Consulting
Financing Receivable, Credit Quality Indicator [Line Items]
Equity contribution rate	10.00%
Retail Center - Cincinnati, OH | Capitalization Rate
Financing Receivable, Credit Quality Indicator [Line Items]
Loan collateral, measurement input	0.09
Residential-for-Sale - Manhattan, NY | Discount Rate
Financing Receivable, Credit Quality Indicator [Line Items]
Loan collateral, measurement input	0.10
Office - Troy, MI | Capitalization Rate
Financing Receivable, Credit Quality Indicator [Line Items]
Loan collateral, measurement input	0.10
Office - Troy, MI | Discount Rate
Financing Receivable, Credit Quality Indicator [Line Items]
Loan collateral, measurement input	0.20

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