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Multi-family Loans, at Fair Value - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
VIE, Not Primary Beneficiary
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unrealized gains (losses)	$ 0.1	$ 0.2	$ 0.6	$ (4.6)

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Unrealized Gain (Loss) Loans and Preferred Equity

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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