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Goodwill and Other Intangible Assets - Summary of Carrying Amount of Net Other Intangible Assets by Class (Detail) - USD ($)
$ in Millions
Apr. 30, 2017
Oct. 31, 2016
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 187.6 $ 217.2
Accumulated Amortization 100.8 106.6
Net Intangible Assets 86.8 110.6
Trademarks and patents    
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Indefinite Lived Intangible Assets 13.0 13.0
Customer relationships    
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Gross Intangible Assets 143.0 167.6
Accumulated Amortization 83.5 86.9
Net Intangible Assets 59.5 80.7
Trademarks and patents    
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Gross Intangible Assets 9.1 12.1
Accumulated Amortization 3.5 4.8
Net Intangible Assets 5.6 7.3
Non-compete agreements    
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Gross Intangible Assets 0.4 1.0
Accumulated Amortization 0.2 0.9
Net Intangible Assets 0.2 0.1
Other    
Finite Lived And Indefinite Lived Intangible Assets [Line Items]    
Gross Intangible Assets 22.1 23.5
Accumulated Amortization 13.6 14.0
Net Intangible Assets $ 8.5 $ 9.5