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Residential Loans, at Fair Value - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Net realized gain on payoff of residential loans	$ 0.5	$ 1.6	$ 0.0	$ 1.7
Loss on sale of residential loans	0.2	$ 0.2	0.1	$ 3.2
Residential loans | Foreclosure
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Process of foreclosure	118.9		118.9
Principal outstanding	138.2		138.2
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 outstanding	129.4		129.4		$ 117.1
Residential Loans Held in Consolidated SLST | VIE, Primary Beneficiary | Residential loans | Foreclosure
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Process of foreclosure	$ 43.8		$ 43.8

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Amount of principal due on delinquent mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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