Real Estate - Schedule of Construction in Progress (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Real Estate [Line Items]
Construction in progress	$ 285,810	$ 205,911
Twinbrook Quarter
Real Estate [Line Items]
Construction in progress	203,815	138,069
Hampden House
Real Estate [Line Items]
Construction in progress	70,912	56,898
Other
Real Estate [Line Items]
Construction in progress	$ 11,083	$ 10,944