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Multi-family Loans, at Fair Value - Geographic Concentration Risk (Details) - Preferred Equity and Mezzanine Loan Investments - Geographic Concentration Risk	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Texas
Concentration Risk [Line Items]
Geographic concentration, percent	32.70%	32.60%
Tennessee
Concentration Risk [Line Items]
Geographic concentration, percent	15.30%	15.20%
Florida
Concentration Risk [Line Items]
Geographic concentration, percent	10.60%	10.50%
Arkansas
Concentration Risk [Line Items]
Geographic concentration, percent	9.50%	9.50%
Louisiana
Concentration Risk [Line Items]
Geographic concentration, percent	7.70%	7.50%
Alabama
Concentration Risk [Line Items]
Geographic concentration, percent	6.70%	6.70%
North Carolina
Concentration Risk [Line Items]
Geographic concentration, percent	5.80%	5.80%
Indiana
Concentration Risk [Line Items]
Geographic concentration, percent	5.20%	5.30%

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- Definition

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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