Segment Information - Summary of third-party real estate services (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 6,508	$ 6,384
Net third-party real estate services, excluding reimbursements	469	(852)
Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	6,508	6,384
Third-party real estate services expenses, excluding reimbursements	6,039	7,236
Net third-party real estate services, excluding reimbursements	469	(852)
Property management fees \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	3,356	3,361
Asset management fees \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	1,077	580
Development fees \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	369	523
Leasing fees \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	368	654
Construction management fees \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	219	231
Other service revenue \| Third-Party Real Estate Services Segment
Segment Information
Third-party real estate services revenue, excluding reimbursements	$ 1,119	$ 1,035