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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 | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Jul. 14, 2025 | Sep. 30, 2025 | Sep. 30, 2024
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Unrealized losses (gains) | $ 54,852 | $ 96,949 |  | $ 197,670 | $ 41,046
Equity Method Investments |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Change in fair value, gain (loss) | (1,642) | (1,136) |  | 2,959 | 5,210
Equity Method Investments | Single-Family Equity Ownership Interests |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Change in fair value, gain (loss) | 47 | 7,611 |  | (1,554) | 9,301
Equity Method Investments | Joint Venture Equity Investments in Multi-Family Properties |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Change in fair value, gain (loss) | 0 | (421) |  | (838) | (4,485)
Unrealized losses (gains) |  | (400) |  | (800) | (4,500)
Constructive Loans LLC | Equity Method Investments | Single-Family Equity Ownership Interests |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Change in fair value, gain (loss) | 47 | 7,611 |  | (1,554) | 9,301
Unrealized losses (gains) |  | 3,900 | $ (4,400) |  | 2,000
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) | 0 | (112) |  | 39 | (1,741)
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) | $ 0 | $ (309) |  | $ (877) | $ (2,744)

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