Segment Information - Summary of Certain Balance Sheet Data by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Segment Information
Real estate, at cost	$ 6,137,660	$ 6,158,082
Investments in unconsolidated real estate ventures	309,219	299,881
Total assets	5,783,602	5,903,438
Operating Segments | Commercial Segment
Segment Information
Real estate, at cost	2,585,492	2,754,832
Investments in unconsolidated real estate ventures	224,620	218,723
Total assets	2,787,056	2,829,576
Operating Segments | Multifamily Segment
Segment Information
Real estate, at cost	3,126,375	2,986,907
Investments in unconsolidated real estate ventures		304
Total assets	2,508,503	2,483,902
Other
Segment Information
Real estate, at cost	425,793	416,343
Investments in unconsolidated real estate ventures	84,599	80,854
Total assets	$ 488,043	$ 589,960