XML 60 R49.htm IDEA: XBRL DOCUMENT v3.8.0.1
Land, Building and Improvements and Assets Held for Sale - Property Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Real Estate Investment Property At Cost    
Less: Accumulated depreciation $ (1,399,810) $ (1,329,613)
Investments in real estate 8,156,952 8,033,328
Operating Lease    
Real Estate Investment Property At Cost    
Land 1,136,834 1,125,539
Buildings and improvements 4,309,490 4,208,907
Real estate under construction 36,725 39,772
Less: Accumulated depreciation (651,762) (613,543)
Investments in real estate 4,831,287 4,760,675
Operating Properties    
Real Estate Investment Property At Cost    
Land 3,874 6,041
Buildings and improvements 36,286 77,006
Less: Accumulated depreciation (7,069) (16,419)
Investments in real estate $ 33,091 $ 66,628