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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Additional Information (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Feb. 28, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, percentage of portfolio |  |  |  |  |  |  | 100.00% |  |  | 100.00% |  |
Interest receivable |  |  | $ 74,886 |  |  |  | $ 74,886 |  |  | $ 58,470 |  |
Amortized cost of loans in cost recovery |  |  | 366,900 |  |  |  | 366,900 |  |  | 486,800 |  |
Interest received for loans in cost recovery |  |  | 400 |  | $ 800 |  | 1,000 |  | $ 1,400 |  |  |
Unfunded commitments |  |  | 5,057 |  |  |  | 5,057 |  |  | 5,948 |  |
Mortgage loans on real estate, commercial and consumer, net |  |  | 8,624,910 |  |  |  | 8,624,910 |  |  | 7,104,156 |  |
Note receivable, held for sale |  |  | 39,964 |  |  |  | 39,964 |  |  | 41,200 |  |
Proceeds from pre-payment penalties or accelerated fees |  |  | 400 |  | 700 |  | 400 |  | 800 |  |  |
Payment in kind interest |  |  | 300 |  | $ 0 |  | 300 |  | 0 |  |  |
Proceeds received from the repayment and sale of commercial mortgage loans |  |  |  |  |  |  | 653,916 |  | 752,773 |  |  |
Promissory Note | Forecast |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loan, mortgage, held-for-sale, price percentage | 97.00% |  |  |  |  |  |  |  |  |  |  |
Multifamily Property in Miami Gardens, Florida |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, net |  |  |  |  |  |  |  |  |  |  |  | $ 114,000
Hotel - Honolulu, Hi |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loan, mortgage, held-for-sale, price percentage |  |  |  |  | 99.50% |  |  |  |  |  |  |
Past Due 90 |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amortized cost of loans in cost recovery |  |  | 366,900 |  |  |  | $ 366,900 |  |  | 486,800 |  |
Commercial Mortgage and Subordinated Portfolio Segment |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, percentage of portfolio |  |  |  |  |  |  | 2.70% |  |  |  |  |
Unfunded commitments |  |  | 36,700 |  |  |  | $ 36,700 |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, net |  |  | 4,200 |  |  |  | 4,200 |  |  | 8,300 |  |
Modified receivables |  |  | 235,200 |  |  |  | 235,200 |  |  |  |  |
Subordinate Mortgage Portfolio Segment |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, net |  |  | $ 145,472 | [1] |  |  | $ 145,472 | [1] |  | $ 388,809 | [1] | $ 24,000
Proceeds received from the repayment and sale of commercial mortgage loans |  | $ 24,000 |  |  |  |  |  |  |  |  |  |
Floating Rate Loan |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, percentage of portfolio |  |  |  |  |  |  | 96.00% |  |  | 96.00% |  |
Mortgage, Amortized cost | Hotel - Honolulu, Hi |  |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loans and leases receivable, gain (loss) on sales, net |  |  |  |  |  | $ (700) |  |  | $ (700) |  |  |
[1] | Net of $381,348 and $373,336 CECL Allowances comprised $38,848 and $30,836 General CECL Allowance in 2025 and 2024, respectively, and $342,500 Specific CECL Allowance in 2025 and 2024.

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