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Intangible Assets and Goodwill - Estimated Amortization Expense (Detail)
$ in Thousands
Oct. 31, 2015
USD ($)
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]  
Remainder of fiscal 2016 $ 2,128
Fiscal 2017 8,406
Fiscal 2018 7,960
Fiscal 2019 7,133
Fiscal 2020 5,563
Thereafter 17,863
Finite lived intangible assets, Net Carrying Amount $ 49,053