Quarterly report pursuant to Section 13 or 15(d)

Properties, Net (Details)

v3.8.0.1
Properties, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Investments in real estate    
Operating properties, net $ 2,740,264 $ 2,737,611
Operating Properties    
Investments in real estate    
Less: accumulated depreciation (813,457) (786,193)
Operating properties, net 2,740,264 2,737,611
Operating Properties | Land    
Investments in real estate    
Gross 457,459 455,680
Operating Properties | Buildings and improvements    
Investments in real estate    
Gross $ 3,096,262 $ 3,068,124