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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 1,189,162 $ 1,191,864
Less: Accumulated depreciation (933,761) (919,157)
Total property, plant and equipment, net 255,401 272,707
Land    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 31,080 30,869
Land improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 7,688 7,620
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 $ 118,592 121,105
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 $ 906,117 897,398
Rental machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 2 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 $ 54,869 54,842
Furniture, fixtures and computers    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 19,756 16,928
Furniture, fixtures and computers | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 3 years  
Furniture, fixtures and computers | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Automobiles and other vehicles    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Property, plant and equipment, gross $ 25,894 25,948
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 12,754 12,773
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 $ 12,412 $ 24,381