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Real Estate - Schedule of Construction in Progress (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Real Estate [Line Items]    
Construction in progress $ 260,141 $ 205,911
Twinbrook Quarter    
Real Estate [Line Items]    
Construction in progress 183,385 138,069
Hampden House    
Real Estate [Line Items]    
Construction in progress 64,812 56,898
Other    
Real Estate [Line Items]    
Construction in progress $ 11,944 $ 10,944