v3.3.1.900
Organization and Ownership (Details)
Dec. 31, 2015
Dec. 31, 2015
ft²
Dec. 31, 2015
building
Dec. 31, 2015
project
Dec. 31, 2015
tenant
Dec. 31, 2015
a
Dec. 31, 2014
ft²
property
Jan. 31, 2014
ft²
Dec. 31, 2013
ft²
Real Estate Properties [Line Items]                  
Number of real estate properties     2       5    
Net Rentable Area   1,046,394         1,471,319 79,000 200,306
Lease Up Properties [Member]                  
Real Estate Properties [Line Items]                  
Number of real estate properties     2 1          
Net Rentable Area [1]   73,000              
Stabilized Office Properties [Member]                  
Real Estate Properties [Line Items]                  
Number of real estate properties | building     101            
Net Rentable Area   13,032,406              
Number of Tenants | tenant         517        
Percentage Occupied (unaudited) 94.80%                
Development Properties [Member]                  
Real Estate Properties [Line Items]                  
Number of real estate properties | project [1]       5          
Net Rentable Area [2],[3]   1,910,000              
Columbia Square [Member]                  
Real Estate Properties [Line Items]                  
Net Rentable Area   108,517              
Crossing 900 [Member]                  
Real Estate Properties [Line Items]                  
Net Rentable Area   339,987              
Land [Member]                  
Real Estate Properties [Line Items]                  
Area of Land | a           99      
4040 Civic [Member] [Member]                  
Real Estate Properties [Line Items]                  
Net Rentable Area             130,237    
Carlsbad Oaks [Member]                  
Real Estate Properties [Line Items]                  
Number of real estate properties | project       1          
Washington - Land Parcel [Domain]                  
Real Estate Properties [Line Items]                  
Number of real estate properties | building     1            
[1] Estimated rentable square feet upon completion.
[2] Excludes acquisition-related costs and non-lease related accrued liabilities assumed. Includes assumed unpaid leasing commissions and tenant improvements.
[3] The results of operations for the properties acquired during 2014 contributed $7.7 million and $2.8 million to revenues and net income from continuing operations, respectively, for the year ended December 31, 2014.