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v3.19.2

Organization of The Parent Company and The Operating Partnership (Textual) (Details) | 6 Months Ended
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Jun. 30, 2019 ft² a property Parcel
Organization of The Parent Company and The Operating Partnership [Line Items] |
Number of Properties | property | 96
Net Rentable Square Feet | 16,922,019
Parent Company [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Areas of land held for development | a | 234.7
Land Held for Sale | a | 35.2
Area of Additional Undeveloped Parcels of Land With Option to Purchase | a | 55.5
Total Potential Development Capacity | 14,200,000
Parent Company [Member] | Land Parcel One [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Lease agreement term | 99 years
Parent Company [Member] | Land Parcel Two [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Lease agreement term | 99 years
Parent Company [Member] | Assets Held-for-sale [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Total Potential Development Capacity | 200,000
Parent Company [Member] | Leashold Interest Land [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Areas of land held for development | a | 1.8
Number of Parcels | Parcel | 2
Wholly-owned Management Company Subsidiaries [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net Rentable Square Feet | 24,900,000
Wholly-owned Management Company Subsidiaries [Member] | Wholly Owned Properties [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net Rentable Square Feet | 16,900,000
Wholly-owned Management Company Subsidiaries [Member] | Partially Owned Properties [Member] |
Organization of The Parent Company and The Operating Partnership [Line Items] |
Net Rentable Square Feet | 8,000,000.0
Brandywine Operating Partnership LP [Member] |
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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