Equity Investments, at Fair Value - Schedule of Income From Multi-Family Preferred Equity Ownership Interests (Details) - Equity investments - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	$ 7,912	$ 20,462	$ 18,670
EHOF-NYMT Sunset Apartments Preferred, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	2,722	2,579	1,939
Lucie at Tradition Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	3,355	2,841	2,008
Hudson Bridge Apartments, LLC - Series A, Briar Hill Apartments, LLC, Kings Glen Apartments, LLC, Flagstone Apartments, LLC, Brookfield Apartments II, LLC - Series B, and Silber JBSM Properties, LLC (collectively)
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	1,070	1,234	540
Tides on 27th Investors, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	(3,320)	2,513	0
Rapid City RMI JV LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	1,594	541	0
Syracuse Apartments and Townhomes, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	2,422	2,691	1,816
Palms at Cape Coral, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	69	751	554
FF/RMI 20 Midtown, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	3,948	2,904
America Walks at Port St. Lucie, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	2,244	3,140
1122 Chicago DE, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	419	959
Bighaus, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	701	1,852
Somerset Deerfield Investor, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	0	1,944
RS SWD Owner, LLC, RS SWD Mitchell Owner, LLC, RS SWD IF Owner, LLC, RS SWD Mullis Owner, LLC, RS SWD JH Mullis Owner, LLC and RS SWD Saltzman Owner, LLC (collectively)
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	0	529
Walnut Creek Properties Holdings, L.L.C.
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	0	(153)
DCP Gold Creek, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	0	254
Rapid City RMI JV LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	0	0	(174)
Lurin-RMI, LLC
Schedule of Equity Method Investments [Line Items]
Changes in fair value, gain (loss)	$ 0	$ 0	$ 558