ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP - Summary of Core Portfolio of Operating Properties and Excludes Development, Redevelopment and Held for Sale (Details)	Jun. 30, 2023 ft² property
Real Estate Properties [Line Items]
Number of Properties | property	76
Rentable Square Feet | ft²	13,404,886
Core Properties
Real Estate Properties [Line Items]
Number of Properties | property	72
Rentable Square Feet | ft²	12,823,542
Office properties
Real Estate Properties [Line Items]
Number of Properties | property	67
Rentable Square Feet | ft²	11,881,208
Mixed-use properties
Real Estate Properties [Line Items]
Number of Properties | property	5
Rentable Square Feet | ft²	942,334
Development property
Real Estate Properties [Line Items]
Number of Properties | property	2
Rentable Square Feet | ft²	350,488
Redevelopment properties
Real Estate Properties [Line Items]
Number of Properties | property	2
Rentable Square Feet | ft²	230,856