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Organization of the Parent Company and The Operating Partnership (Tables)
3 Months Ended
Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Core Portfolio of Operating Properties and Excludes Development, Redevelopment and Held for Sale The Company’s core portfolio of operating properties (the “Core Properties”) excludes development properties, redevelopment properties, and properties held for sale. The Properties were comprised of the following as of March 31, 2021:
Number of PropertiesRentable Square Feet
Office properties71 12,006,744 
Mixed-use properties942,334 
Core Properties76 12,949,078 
Development property204,000 
Redevelopment properties498,318 
The Properties81 13,651,396