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Equity Investments, at Fair Value - Schedule of Income (Loss) From Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Schedule of Equity Method Investments [Line Items] |  |  |  |
Unrealized (losses) gains, net | $ (8,933) | $ (67,694) | $ 19,556 | $ (151,353)
Equity investments | Single-Family Equity Ownership Interests |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 0 | 1,772 | (2,500) | 1,800
Equity investments | Joint venture equity investments in multi-family properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | (2,376) | 299 | (1,316) | 549
Constructive Loans, LLC | Equity investments | Single-Family Equity Ownership Interests |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 0 | 1,750 | (2,500) | 1,750
Unrealized (losses) gains, net | (1,000) | 1,800 | (4,300) | 1,800
Morrocroft Neighborhood Stabilization Fund II, LP | Equity investments | Single-Family Equity Ownership Interests |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 0 | 22 | 0 | 50
GWR Cedars Partners, LLC | Equity investments | Joint venture equity investments in multi-family properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | (613) | 111 | (200) | 211
GWR Gateway Partners, LLC | Equity investments | Joint venture equity investments in multi-family properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | (1,763) | 188 | (1,116) | 338
Headlands Asset Management Fund III (Cayman), LP (Headlands Flagship Opportunity Fund Series I) | Equity investments | Joint venture equity investments in multi-family properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Unrealized (losses) gains, net | $ (2,400) | $ 300 | $ (1,300) | $ 500

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