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Investments in Real Estate Ventures - Schedule of Investments in Real Estate Ventures (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Equity Method Investment and Joint Venture, Fair Value Change [Roll Forward] |  |  |  |
Fair value investments, beginning balance |  |  | $ 6,228 |
Distributions |  |  | 0 | $ (14)
Change in fair value | $ (35) | $ 75 | (53) | $ 369
Fair value investments, ending balance | 6,308 |  | 6,308 |
Fair Value, Inputs, Level 3 |  |  |  |
Equity Method Investment and Joint Venture, Fair Value Change [Roll Forward] |  |  |  |
Fair value investments, beginning balance |  |  | 4,599 |
Investments |  |  | 0 |
Distributions |  |  | (2) |
Change in fair value |  |  | 50 |
Fair value investments, ending balance | $ 4,647 |  | $ 4,647 |

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