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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Allocation of Carrying Value of Loan Portfolio Based on Internal Risk Ratings (Details) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 USD ($) Loan | Dec. 31, 2023 USD ($) Loan
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 50 | 50
Total | $ 8,329,221 | $ 8,384,575
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 100.00% | 100.00%
Year 1 | $ 639,886 | $ 440,720
Year 2 | 490,664 | 2,707,083
Year 3 | 2,581,807 | 2,285,902
Year 4 | 2,224,218 | 557,204
Year 5 | 421,975 | 1,597,927
Prior | 1,970,671 | 795,739
General CECL Allowance | (35,319) | (26,482)
Carrying value, net | $ 8,293,902 | $ 8,358,093
Weighted-Average Risk Rating | 3 | 3
Gross write-offs | $ 0 | $ 81,890
1 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 0 | 0
Total | $ 0 | $ 0
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 0.00% | 0.00%
Year 1 | $ 0 | $ 0
Year 2 | 0 | 0
Year 3 | 0 | 0
Year 4 | 0 | 0
Year 5 | 0 | 0
Prior | $ 0 | $ 0
2 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 4 | 4
Total | $ 479,843 | $ 478,440
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 5.80% | 5.70%
Year 1 | $ 0 | $ 0
Year 2 | 0 | 280,572
Year 3 | 390,038 | 0
Year 4 | 24,471 | 0
Year 5 | 0 | 132,309
Prior | $ 65,334 | $ 65,560
3 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 41 | 42
Total | $ 7,302,939 | $ 7,548,252
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 87.70% | 90.00%
Year 1 | $ 639,886 | $ 440,720
Year 2 | 490,664 | 2,426,511
Year 3 | 1,849,832 | 2,285,902
Year 4 | 2,199,747 | 387,323
Year 5 | 394,094 | 1,465,618
Prior | $ 1,728,716 | $ 542,177
4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 2 | 2
Total | $ 420,049 | $ 88,112
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 5.00% | 1.10%
Year 1 | $ 0 | $ 0
Year 2 | 0 | 0
Year 3 | 341,937 | 0
Year 4 | 0 | 0
Year 5 | 0 | 0
Prior | $ 78,112 | $ 88,112
5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Number of Loans | Loan | 3 | 2
Total | $ 126,390 | $ 269,771
Mortgage loans on real estate, commercial and consumer, percentage of portfolio | 1.50% | 3.20%
Year 1 | $ 0 | $ 0
Year 2 | 0 | 0
Year 3 | 0 | 0
Year 4 | 0 | 169,881
Year 5 | 27,881 | 0
Prior | $ 98,509 | $ 99,890

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