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Organization of The Parent Company and The Operating Partnership (Textual) (Details) | 3 Months Ended
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Mar. 31, 2020 a ft² parcel property
Organization of The Parent Company and The Operating Partnership [Line Items] |
Number of properties | property | 94
Net rentable area (in square feet) | 16,580,310
Parent Company |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Areas of land held for development (in acres) | a | 242.5
Area of land held for sale (in acres) | a | 49.2
Area of additional undeveloped parcels of land with option to purchase (in acres) | a | 55.5
Total potential development capacity (in square feet) | 14,400,000
Parent Company | Land Parcel One |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Lease agreement term | 99 years
Parent Company | Land Parcel Two |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Lease agreement term | 99 years
Parent Company | Assets Held-for-sale |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Total potential development capacity (in square feet) | 300,000
Parent Company | Leashold Interest Land |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Areas of land held for development (in acres) | a | 1.8
Number of parcels of land | parcel | 2
Wholly-owned Management Company Subsidiaries |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net rentable area (in square feet) | 24,100,000
Wholly-owned Management Company Subsidiaries | Wholly Owned Properties |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net rentable area (in square feet) | 16,600,000
Wholly-owned Management Company Subsidiaries | Partially Owned Properties |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net rentable area (in square feet) | 7,500,000
Brandywine Operating Partnership LP |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Ownership in the operating partnership | 99.40%

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- Definition Area of land held for development. + References No definition available. + Details
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- Definition Organization of The Parent Company and The Operating Partnership. + References No definition available. + Details
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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