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Inventories - Summarization of Inventories (Detail) (USD $)
In Millions, unless otherwise specified
Apr. 30, 2013
Oct. 31, 2012
Inventory Disclosure [Abstract]    
Finished Goods $ 108.9 $ 96.9
Raw materials 245.1 241.0
Work-in-process 38.5 36.4
Inventories, net $ 392.5 $ 374.3