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Goodwill and Intangible Assets - Estimated Future Amortization of Intangible Assets (Detail) - USD ($)
$ in Thousands
Oct. 31, 2015
Oct. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2016 $ 126,865  
2017 87,586  
2018 62,736  
2019 39,729  
2020 28,334  
2021 and thereafter 18,409  
Net Assets $ 363,659 $ 365,030