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Transactions with Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Transactions with Related Parties
Revenues	$ 120,686	$ 145,184
4747 Bethesda Avenue
Transactions with Related Parties
Ownership percentage	20.00%
Related party \| Washington Housing Initiative
Transactions with Related Parties
Completed capital commitments	$ 114,400
Commitment	11,200
Remaining unfunded commitment	2,900
Related party \| Fee-based real estate services \| JBG Legacy Funds and Washington Housing Initiative Impact Pool and its Affiliates
Transactions with Related Parties
Revenues	2,600	4,000
Receivables	1,900		$ 2,100
Related party \| Office Rent \| Unconsolidated Real Estate Ventures
Transactions with Related Parties
Related party payments	1,300	1,500
Related party \| Supervisory Services of Properties \| BMS
Transactions with Related Parties
Related party payments	$ 2,000	$ 2,500