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Goodwill and Intangible Assets - Estimated Amortization Expense (Detail)
$ in Thousands
Oct. 31, 2015
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Estimated Amortization Expense, 2016 $ 29,574
Estimated Amortization Expense, 2017 29,148
Estimated Amortization Expense, 2018 28,752
Estimated Amortization Expense, 2019 28,504
Estimated Amortization Expense, 2020 $ 27,980