Redeemable Noncontrolling Interests - Summary of the Activity of Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Temporary Equity
Balance, beginning of period	$ 440,737	$ 481,310
Redemptions		(14,429)
LTIP Units issued in lieu of cash compensation		4,456
Net income (loss)		3,363
Other comprehensive income (loss)		(2,225)
Share-based compensation expense		9,543
Adjustment to redemption value		(24,240)
Balance, end of period	435,529	457,778
JBG Smith, LP
Temporary Equity
Balance, beginning of period	440,737	480,663
Redemptions	(7,875)	(13,782)
LTIP Units issued in lieu of cash compensation	2,983	4,456
Net income (loss)	(4,534)	3,363
Other comprehensive income (loss)	2,026	(2,225)
Distributions	(2,931)
Share-based compensation expense	8,950	9,543
Adjustment to redemption value	(3,827)	(24,240)
Balance, end of period	$ 435,529	457,778
Consolidated Real Estate Venture
Temporary Equity
Balance, beginning of period		647
Redemptions		$ (647)