XML 76 R55.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investment in Unconsolidated Real Estate Entities (Detail) - USD ($)
3 Months Ended 9 Months Ended
Jul. 06, 2016
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Jul. 05, 2016
Schedule Of Equity Method Investments [Line Items]            
Payments to acquire real estate       $ 532,108,000 $ 308,277,000  
Equity in income from unconsolidated real estate entities   $ 0 $ 1,328,000 11,000 1,451,000  
Management, leasing and development services   (109,000) (131,000) (380,000) (376,000)  
Mission Oaks Joint Venture            
Schedule Of Equity Method Investments [Line Items]            
Management, leasing and development services   $ 0 $ (1,000) $ 0 $ (100,000)  
3255 Mission Oaks Blvd            
Schedule Of Equity Method Investments [Line Items]            
Payments to acquire real estate $ 25,700,000          
Ownership Interest acquired 100.00%          
3255 Mission Oaks Blvd | 3255 Mission Oaks Blvd            
Schedule Of Equity Method Investments [Line Items]            
Ownership Interest acquired           15.00%