Equity Investments, at Fair Value - Schedule of Income (Loss) From Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Equity Method Investments [Line Items]
Unrealized gains (losses), net	$ 96,949	$ (61,295)	$ 41,046	$ (55,738)
Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	(1,136)	4,678	5,210	15,660
Equity Method Investments | Single-Family Equity Ownership Interests
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	7,611	0	9,301	(2,500)
Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	(421)	(2,622)	(4,485)	(3,937)
Constructive Loans, LLC | Equity Method Investments | Single-Family Equity Ownership Interests
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	7,611	0	9,301	(2,500)
Unrealized gains (losses), net	3,900	(1,300)	2,000	(5,600)
GWR Cedars Partners, LLC | Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	(112)	(1,020)	(1,741)	(1,220)
GWR Gateway Partners, LLC | Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties
Schedule of Equity Method Investments [Line Items]
Change in fair value, gain (loss)	(309)	(1,602)	(2,744)	(2,717)
Headlands Asset Management Fund III (Cayman), LP (Headlands Flagship Opportunity Fund Series I) | Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties
Schedule of Equity Method Investments [Line Items]
Unrealized gains (losses), net	$ (400)	$ (2,600)	$ (4,500)	$ (3,900)