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Organization - Narrative (Details)
ft² in Millions, $ in Millions
Apr. 01, 2015
USD ($)
ft²
project
property
shares
Jun. 30, 2015
property
Office Properties    
Business Acquisition [Line Items]    
Number of real estate properties   53
Media and Entertainment Properties    
Business Acquisition [Line Items]    
Number of real estate properties   2
EOP Northern California Portfolio    
Business Acquisition [Line Items]    
Area of real estate property | ft² 8.2  
Gross payments to acquire business | $ $ 1,750  
Consideration transferred, common units | shares 63,474,791  
EOP Northern California Portfolio | Office Building    
Business Acquisition [Line Items]    
Number of real estate properties acquired 26  
EOP Northern California Portfolio | Development Parcel    
Business Acquisition [Line Items]    
Development projects acquired | project 2