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ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP - Summary of Properties (Details) | Dec. 31, 2019 ft² property
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Real Estate Properties [Line Items] |
Number of Properties | property | 95
Rentable Square Feet | ft² | 16,711,387
Office Properties |
Real Estate Properties [Line Items] |
Number of Properties | property | 86
Rentable Square Feet | ft² | 15,450,417
Mixed-use Properties |
Real Estate Properties [Line Items] |
Number of Properties | property | 4
Rentable Square Feet | ft² | 659,625
Core Properties |
Real Estate Properties [Line Items] |
Number of Properties | property | 90
Rentable Square Feet | ft² | 16,110,042
Development Property |
Real Estate Properties [Line Items] |
Number of Properties | property | 1
Rentable Square Feet | ft² | 204,108
Redevelopment Properties |
Real Estate Properties [Line Items] |
Number of Properties | property | 4
Rentable Square Feet | ft² | 397,237

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- Definition Area of a real estate property. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition 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. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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- Details
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