Organization, Ownership and Basis of Presentation - Operating Properties (Details)	3 Months Ended
	Mar. 31, 2024 ft² development_project property tenant building
Stabilized Office Properties
Real Estate Properties [Line Items]
Number of Buildings | building	121
Rentable Square Feet	17,043,497
Number of Tenants | tenant	410
Percentage Occupied	84.20%
Stabilized Residential Properties
Real Estate Properties [Line Items]
Number of Projects | property	3
Number of Units | property	1,001
2024 Average Occupancy	93.10%
In-process development projects - under construction
Real Estate Properties [Line Items]
Rentable Square Feet	875,000
Number of Projects | development_project	1
In-process redevelopment projects - under construction
Real Estate Properties [Line Items]
Rentable Square Feet	100,000
Number of Projects | development_project	2