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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
Jul. 31, 2019
Oct. 31, 2018
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 320.3 $ 314.8
Less: accumulated depreciation (117.1) (100.5)
Total property, plant and equipment, net 203.2 214.3
Land and Land Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 24.0 23.9
Building and Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 106.1 102.5
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 84.9 77.1
Rental Fleet [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 25.2 35.4
Computer Hardware and Software [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 57.2 56.1
Office Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 5.7 5.1
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 17.2 $ 14.7