Equity Investments, at Fair Value - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Equity Method Investments [Line Items]
(Loss) income from equity investments	$ (3,098,000)	$ 8,015,000	$ 11,056,000	$ 22,021,000
Preferred Equity Ownership Interests
Schedule of Equity Method Investments [Line Items]
(Loss) income from equity investments	(4,200,000)	(300,000)	(3,800,000)	600,000
Multi-Family Preferred Equity Ownership Interests
Schedule of Equity Method Investments [Line Items]
Other income (loss)	$ 1,300,000	$ 0	$ 2,800,000	$ 0

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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