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Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2012
Oct. 31, 2011
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 113,611 $ 115,809
Accumulated Amortization (33,819) (27,866)
Customer relationships
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 43,296 44,260
Accumulated Amortization (10,830) (8,588)
Trademarks and trade names
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 44,281 44,857
Accumulated Amortization (13,720) (11,540)
Patents and other technology
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 24,642 25,300
Accumulated Amortization (8,875) (7,552)
Lease agreements
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 1,392 1,392
Accumulated Amortization $ (394) $ (186)