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Related Party Transactions and Investments in Non-Consolidated Entities - Management fees and interest income from loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Sponsored REITs |  |  |
Asset management fees, low end of range (as a percent) | 1.00% |  |
Asset management fees, high end of range (as a percent) | 5.00% |  |
Notice period for cancellation of applicable contracts | 30 days |  |
Type of revenue | Asset management fees | Asset management fees | Asset management fees
Asset management fees |  |  |
Sponsored REITs |  |  |
Revenue | $ 28 | $ 61 | $ 71

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