XML 57 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial Statement Information Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Property, Plant and Equipment      
Property, Plant and Equipment, Net $ 929,756   $ 913,089
Depreciation $ 37,000 $ 27,000