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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, 2020 ft² property
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Real Estate Properties [Line Items] |
Number of properties | property | 94
Net rentable area (in square feet) | ft² | 16,585,793
Office properties |
Real Estate Properties [Line Items] |
Number of properties | property | 83
Net rentable area (in square feet) | ft² | 13,585,348
Mixed-use properties |
Real Estate Properties [Line Items] |
Number of properties | property | 5
Net rentable area (in square feet) | ft² | 780,184
Core Properties |
Real Estate Properties [Line Items] |
Number of properties | property | 88
Net rentable area (in square feet) | ft² | 14,365,532
Development property |
Real Estate Properties [Line Items] |
Number of properties | property | 1
Net rentable area (in square feet) | ft² | 204,108
Redevelopment properties |
Real Estate Properties [Line Items] |
Number of properties | property | 3
Net rentable area (in square feet) | ft² | 120,011
Held for sale properties |
Real Estate Properties [Line Items] |
Number of properties | property | 2
Net rentable area (in square feet) | ft² | 1,896,142

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