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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