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Multi-family Loans, at Fair Value - Preferred Equity and Mezzanine Loan Investments (Details) - VIE, Not Primary Beneficiary - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Investment amount	$ 96,314	$ 95,434
Unrealized (losses) gains, net	(4,409)	358
Total, at Fair Value	$ 91,905	$ 95,792

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- Definition

Financial Instrument Owned, Loans And Preferred Equity, Net

+ References

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- Definition

Preferred Equity And Mezzanine Loans, Accumulated Gross Unrealized Gain (Loss), Before Tax

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1

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Amount of investments classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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