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Multi-family Loans, at Fair Value - Preferred Equity and Mezzanine Loan Investments (Details) - Variable Interest Entity, Not Primary Beneficiary - Multi-family loans - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Investment amount	$ 88,249	$ 118,307
Deferred loan fees, net	(428)	(672)
Unrealized (losses) gains, net	(287)	2,386
Total, at Fair Value	$ 87,534	$ 120,021

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Amount of investments classified as other.

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