Segment Information - Summary of Third-party Asset Management and Real Estate Services (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 13,062	$ 11,487	$ 36,032	$ 35,621
Reimbursement revenue	10,880	10,358	33,556	32,351
Third-party real estate services revenue, including reimbursements	23,942	21,845	69,588	67,972
Third-party real estate services expenses	21,405	21,230	67,333	72,422
Third-party real estate services revenue less expenses	2,537	615	2,255	(4,450)
Property management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	4,910	4,791	14,879	14,575
Asset management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	1,155	1,479	3,513	4,763
Development fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	4,296	1,426	9,038	7,113
Leasing fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	1,036	1,713	3,648	4,590
Construction management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	266	169	909	356
Other service revenue
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 1,399	$ 1,909	$ 4,045	$ 4,224