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Goodwill and Other Intangible Assets - Summary of Carrying Amount of Net Intangible Assets by Class (Detail) (USD $)
In Millions, unless otherwise specified
Apr. 30, 2013
Oct. 31, 2012
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 271.1 $ 271.8
Accumulated Amortization 84.0 73.2
Net Intangible Assets 187.1 198.6
Trademarks and patents [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 31.3 32.5
Accumulated Amortization 4.4 3.6
Net Intangible Assets 26.9 28.9
Non-compete agreements [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 14.7 14.4
Accumulated Amortization 12.0 11.1
Net Intangible Assets 2.7 3.3
Customer relationships [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 202.7 201.1
Accumulated Amortization 61.3 53.6
Net Intangible Assets 141.4 147.5
Other [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 22.4 23.8
Accumulated Amortization 6.3 4.9
Net Intangible Assets $ 16.1 $ 18.9