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Other Assets - Information on Commercial Mortgage Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Other Assets [Line Items] |  |
Fair Value / Carrying Value | $ 1,484,370 |
Weighted Average LTV Ratio (as a percent) | 80.00% |
Commercial Mortgage Bridge Loan |  |
Other Assets [Line Items] |  |
Fair Value / Carrying Value | $ 45,793 | $ 51,426
UPB | $ 46,633 | $ 51,602
Weighted Average Coupon ( as a percent) | 13.29% | 13.18%
Weighted Average Term to Maturity (Months) | 2 months | 2 months
Weighted Average LTV Ratio (as a percent) | 65.00% | 66.00%
Commercial Mortgage Bridge Loan | UPB 60+ Days Delinquent |  |
Other Assets [Line Items] |  |
UPB | $ 29,931 | $ 3,521
Commercial Mortgage Bridge Loan | Minimum |  |
Other Assets [Line Items] |  |
Participation range to total UPB (as a percent) | 49.00% |
Commercial Mortgage Bridge Loan | Maximum |  |
Other Assets [Line Items] |  |
Participation range to total UPB (as a percent) | 75.00% |

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