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Real Estate and Other Investments - Unconsolidated Joint Venture Narrative (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 USD ($) property | Mar. 31, 2023 USD ($)
Real Estate |  |
Equity in net earnings (losses) of investees | $ 1,898 | $ (647)
Corporate Joint Venture |  |
Real Estate |  |
Equity in net earnings (losses) of investees | $ 1,613 | $ (647)
Corporate Joint Venture | Seaport Innovation LLC |  |
Real Estate |  |
Equity method investment ownership percentage | 10.00% |
Corporate Joint Venture | The LSMD Fund REIT LLC |  |
Real Estate |  |
Equity method investment ownership percentage | 20.00% |
Corporate Joint Venture | Medical Office Building and Life Science Building |  |
Real Estate |  |
Number of properties included in joint venture agreement | property | 10 |

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