Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Jul. 31, 2020	Oct. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 307.3	$ 324.6
Less: accumulated depreciation	(125.0)	(122.9)
Total property, plant and equipment, net	182.3	201.7
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	27.0	24.2
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	104.5	107.6
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	84.6	93.1
Rental and Used Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21.4	24.4
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	55.6	58.1
Office Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6.2	5.8
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8.0	$ 11.4