XML 64 R48.htm IDEA: XBRL DOCUMENT v3.8.0.1
Property, Plant and Equipment - Depreciation and Amortization Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Property, Plant and Equipment [Line Items]        
Depreciation and amortization $ 30,650 $ 26,545 $ 92,700 $ 84,278
Equipment rentals and services        
Property, Plant and Equipment [Line Items]        
Depreciation and amortization 25,663 23,870 78,558 76,023
Products        
Property, Plant and Equipment [Line Items]        
Depreciation and amortization 1,278 989 3,838 3,081
General and administrative expenses        
Property, Plant and Equipment [Line Items]        
Depreciation and amortization $ 3,709 $ 1,686 $ 10,304 $ 5,174