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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Statistics for Loan Portfolio (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of loans | loan | 49 | 50
Principal balance | $ 8,318,448 | $ 8,384,575
Carrying value, net | 8,285,890 | 8,358,093
Unfunded loan commitments | $ 555,596 | $ 868,582
Weighted-average cash coupon | 8.40% | 8.30%
Weighted-average remaining fully-extended term | 2 years 3 months 18 days | 2 years 3 months 18 days
Weighted-average expected term | 2 years | 1 year 9 months 18 days
Interest rate used in calculating weighted-average cash coupon for non-accrual or cost recovery loans | 0.00% | 0.00%
Principal balance |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Principal balance | $ 8,683,129 | $ 8,610,110

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