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Summary of Significant Accounting Policies - Merger Pro Forma (Details) - iStar Merger - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2023
Pro forma information |  |  |
Pro forma revenues | $ 85,561 |  | $ 268,478
Pro forma net income (loss) | $ (122,846) |  | $ (66,412)
iStar Inc. |  |  |
Pro forma information |  |  |
Pro forma revenues |  | $ 100 |
Pro forma net income (loss) |  | $ 6,000 |

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