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Equity Investments, at Fair Value - Schedule of Income (Loss) From Investments (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |
Unrealized gains (losses), net | $ (16,512,000) | $ (27,294,000) | $ (55,902,000) | $ 5,557,000
Equity Method Investments |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 2,744,000 | 5,032,000 | 6,348,000 | 10,984,000
Equity Method Investments | Single-Family Equity Ownership Interests |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 3,379,000 | 0 | 1,690,000 | (2,500,000)
Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | (15,000) | (2,376,000) | (4,065,000) | (1,316,000)
Constructive Loans, LLC | Equity Method Investments | Single-Family Equity Ownership Interests |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Change in fair value, gain (loss) | 3,379,000 | 0 | 1,690,000 | (2,500,000)
Unrealized gains (losses), net | 400,000 | (1,000,000.0) | (1,800,000) | (4,300,000)
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) | (9,000) | (613,000) | (1,629,000) | (200,000)
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) | (6,000) | (1,763,000) | (2,436,000) | (1,116,000)
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 | $ (14,600) | $ (2,400,000) | $ (4,100,000) | $ (1,300,000)

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