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Collateralized Debt Obligations - Schedule of Mortgages Payable in Consolidated VIEs (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate increases, months after issuance |  |  | 24 months |  |
Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate increases, months after issuance |  |  | 48 months |  |
Step-Up Interest Rate One |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate increase, non-redemption | 1.00% |  | 1.00% |  |
Step-Up Interest Rate Two |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate increase, non-redemption | 1.50% |  | 1.50% |  |
Step-Up Interest Rate Three |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate increase, non-redemption | 3.00% |  | 3.00% |  |
Collateralized Debt Obligations | Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | $ 3,448,137 |  | $ 3,448,137 |  | $ 3,070,314
Carrying Value | 3,364,600 |  | 3,364,600 |  | 2,978,444
Collateralized Debt Obligations | Secured Debt | Consolidated SLST |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | 1,095,309 |  | 1,095,309 |  | 867,004
Carrying Value | $ 1,031,897 |  | $ 1,031,897 |  | $ 811,591
Weighted average interest rate | 3.35% |  | 3.35% |  | 3.49%
Collateralized Debt Obligations | Secured Debt | Consolidated SLST | Interest Rate Step-Up |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | $ 1,800,000 |  | $ 1,800,000 |  |
Collateralized Debt Obligations | Secured Debt | Residential loan securitizations |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | 1,543,302 |  | 1,543,302 |  | $ 1,281,896
Carrying Value | $ 1,526,481 |  | $ 1,526,481 |  | $ 1,253,332
Weighted average interest rate | 5.73% |  | 5.73% |  | 5.72%
Unrealized (losses) gains recognized on CDOs | $ (7,400) | $ (100) | $ (12,000) | $ 1,500 |
Collateralized Debt Obligations | Secured Debt | Residential loan securitizations at amortized cost, net |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | 741,397 |  | 741,397 |  | $ 850,547
Carrying Value | $ 738,121 |  | $ 738,121 |  | $ 842,764
Weighted average interest rate | 4.39% |  | 4.39% |  | 4.35%
Collateralized Debt Obligations | Secured Debt | Non-Agency RMBS re-securitization at fair value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding Face Amount | $ 68,129 |  | $ 68,129 |  | $ 70,867
Carrying Value | $ 68,101 |  | $ 68,101 |  | $ 70,757
Weighted average interest rate | 7.38% |  | 7.38% |  | 7.38%

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