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Real Estate and Other Investments - Equity Method Investment in AlerisLife (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Real Estate |  |  |  |  |
Equity method investment | $ 24,905 |  | $ 24,905 |  | $ 0
Equity in net (losses) earnings of investees | (12,307) | $ 2,929 | (10,409) | $ 2,282 |
AlerisLife Inc |  |  |  |  |
Real Estate |  |  |  |  |
Equity method investment, difference between carrying amount and underlying equity | $ 29,500 |  | $ 29,500 |  |
AlerisLife Inc |  |  |  |  |
Real Estate |  |  |  |  |
Equity method investment ownership percentage | 34.00% |  | 34.00% |  |
Equity method investment | $ 24,905 |  | $ 24,905 |  |
Equity in net (losses) earnings of investees | 8,834 |  | 8,945 |  |
AlerisLife Inc | Equity Method Investments |  |  |  |  |
Real Estate |  |  |  |  |
Amortization | $ 352 |  | $ 526 |  |

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