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Organization (Details)
Mar. 31, 2021
ft²
property
Dec. 24, 2020
Jun. 05, 2019
Real Estate Properties      
Number of real estate properties (in properties) | property 64    
Area of real estate property (in square feet) | ft² 19,994,674    
Joint venture, blackstone property partners      
Real Estate Properties      
Ownership interest (percent) 20.00%   20.00%
Joint Venture Sun Valley Property      
Real Estate Properties      
Ownership interest (percent) 50.00% 50.00%  
Consolidated portfolio      
Real Estate Properties      
Number of real estate properties (in properties) | property 61    
Area of real estate property (in square feet) | ft² 17,821,598    
Consolidated portfolio | Office      
Real Estate Properties      
Number of real estate properties (in properties) | property 52    
Area of real estate property (in square feet) | ft² 14,092,789    
Consolidated portfolio | Studios      
Real Estate Properties      
Number of real estate properties (in properties) | property 3    
Area of real estate property (in square feet) | ft² 1,224,403    
Consolidated portfolio | Land      
Real Estate Properties      
Number of real estate properties (in properties) | property 6    
Area of real estate property (in square feet) | ft² 2,504,406    
Unconsolidated portfolio      
Real Estate Properties      
Number of real estate properties (in properties) | property 3    
Area of real estate property (in square feet) | ft² 2,173,076    
Unconsolidated portfolio | Office      
Real Estate Properties      
Number of real estate properties (in properties) | property 1    
Area of real estate property (in square feet) | ft² 1,490,221    
Unconsolidated portfolio | Land      
Real Estate Properties      
Number of real estate properties (in properties) | property 2    
Area of real estate property (in square feet) | ft² 682,855