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Multi-family Loans, at Fair Value - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loan premiums, early redemption	$ 0	$ 186,000	$ 98,000	$ 186,000
VIE, Not Primary Beneficiary
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unrealized (losses) gains	(16,400)	500,000	(4,800,000)	1,000,000.0
Loan premiums, early redemption	$ 0	$ 200,000	$ 0	$ 200,000

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- Definition

Loan Premiums, Loans and Preferred Equity and Mezzanine Loans, Early Redemption

+ References

No definition available.

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- Definition

Unrealized Gain (Loss) Loans and Preferred Equity

+ References

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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/1943274/2147479628/948-310-S99-1

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