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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 1,193,873 $ 1,204,067
Less: Accumulated depreciation (896,079) (875,635)
Total property, plant and equipment, net 297,794 328,432
Land    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 29,744 30,724
Land improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 7,169 7,193
Land improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 8 years  
Land improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 15 years  
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 114,314 116,182
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 13 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 39 years  
Rental machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 883,108 882,979
Rental machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Rental machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 7 years  
Machinery and equipment - other    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 7 years  
Property, plant and equipment, gross $ 56,992 60,182
Furniture, fixtures and computers    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Property, plant and equipment, gross $ 16,988 17,251
Automobiles and other vehicles    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Property, plant and equipment, gross $ 28,044 28,734
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 13,408 14,258
Leasehold improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 7 years  
Leasehold improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 15 years  
Construction in progress - machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 44,106 $ 46,564