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Divestiture Activities - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 19, 2018
Oct. 31, 2018
Oct. 31, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Non-cash impairment charge   $ 35.6  
Property, plant and equipment, net   11.5  
Inventories, net   11.4  
Accounts receivable, net   2.9  
Other current assets   0.5  
Accounts payable   3.9  
Other current liabilities   $ 1.6  
Maximum [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Expected period to sell businesses and other assets   1 year  
Mobility Van Business [Member] | Commercial Segment [Member] | Subsequent Event [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Annual sales of discontinued operation $ 40.0    
Scenario, Forecast [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Cash expected from anticipated divestitures of businesses and assets     $ 40.0