Segment Information - Summary of Third-party Asset Management and Real Estate Services (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 12,009	$ 11,211	$ 22,970	$ 24,134
Reimbursement revenue	10,853	10,946	22,676	21,993
Third-party real estate services revenue, including reimbursements	22,862	22,157	45,646	46,127
Third-party real estate services expenses	22,105	24,143	45,928	51,192
Third-party real estate services revenue less expenses	757	(1,986)	(282)	(5,065)
Property management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	5,017	4,976	9,969	9,784
Asset management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	1,255	1,513	2,358	3,284
Development fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	2,756	2,148	4,742	5,687
Leasing fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	1,256	1,038	2,612	2,877
Construction management fees
Segment Information
Third-party real estate services revenue, excluding reimbursements	303	37	643	187
Other service revenue
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 1,422	$ 1,499	$ 2,646	$ 2,315