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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 1,293,269 $ 1,245,232  
Less: Accumulated depreciation (726,245) (620,273)  
Total property, plant and equipment, net 567,024 624,959 $ 580,142
Land      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 15,730 10,119  
Land improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 9,379 9,289  
Land improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 8 years    
Land improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 15 years    
Buildings and improvements      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 39 years    
Property, plant and equipment, gross $ 73,211 74,152  
Rental machinery and equipment      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 7 years    
Property, plant and equipment, gross $ 933,667 898,134  
Machinery and equipment - other      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 7 years    
Property, plant and equipment, gross $ 60,182 60,250  
Furniture, fixtures and computers      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 5 years    
Property, plant and equipment, gross $ 19,073 18,240  
Automobiles and other vehicles      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 5 years    
Property, plant and equipment, gross $ 36,796 48,402  
Aircraft      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 7 years    
Property, plant and equipment, gross $ 16,267 16,267  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 8,027 7,947  
Leasehold improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 7 years    
Leasehold improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 15 years    
Construction in progress - machinery and equipment and buildings      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 120,937 $ 102,432