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Transactions with Related Parties (Details) - Affiliated Entity - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Washington Housing Initiative
Related Party Transaction [Line Items]
Completed capital commitments	$ 114,400,000
Commitment	11,200,000
Remaining commitment	7,500,000
Supervisory Services of Properties \| BMS
Related Party Transaction [Line Items]
Related party payments	3,100,000	$ 4,300,000
Fees from Legacy JBG Funds and Washington Housing Initiative \| Legacy JBG Funds and Washington Housing Initiative
Related Party Transaction [Line Items]
Revenue from related parties	5,500,000	5,800,000
Receivables	2,700,000		$ 3,200,000
Office Rent \| Unconsolidated Real Estate Ventures
Related Party Transaction [Line Items]
Related party payments	$ 386,000	$ 271,000