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Residential Loans, at Fair Value - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |  |
Net realized gain on payoff of residential loans | $ 0.9 | $ 3.2 | $ 2.9 | $ 7.1 |
Consolidated SLST | VIE, Primary Beneficiary | Residential loans | 90 days or greater delinquent |  |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |  |
Principal amount of delinquent loans | $ 100.6 |  | $ 100.6 |  | $ 143.2

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