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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, 2022 ft² property
Real Estate Properties [Line Items]
Number of Properties | property	78
Rentable area (in square feet) | ft²	13,639,287
Core Properties
Real Estate Properties [Line Items]
Number of Properties | property	74
Rentable area (in square feet) | ft²	12,996,825
Office properties
Real Estate Properties [Line Items]
Number of Properties | property	69
Rentable area (in square feet) | ft²	12,054,491
Mixed-use properties
Real Estate Properties [Line Items]
Number of Properties | property	5
Rentable area (in square feet) | ft²	942,334
Development property
Real Estate Properties [Line Items]
Number of Properties | property	1
Rentable area (in square feet) | ft²	205,803
Redevelopment properties
Real Estate Properties [Line Items]
Number of Properties | property	3
Rentable area (in square feet) | ft²	436,659

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- Definition

Area of a real estate property.

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- Definition

The number of real estate properties owned as of the balance sheet date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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