XML 75 R64.htm IDEA: XBRL DOCUMENT v3.10.0.1
Property, Plant and Equipment - Narratives (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Property, Plant and Equipment [Abstract]        
Depreciation $ 30,626 $ 31,957 $ 99,491 $ 89,987