XML 24 R42.htm IDEA: XBRL DOCUMENT v3.3.1.900
Intangible Assets - Summary of Estimated Amortization Expense (Detail)
$ in Thousands
Oct. 31, 2015
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
Remainder of 2016 $ 152
2017 715
2018 774
2019 769
2020 $ 802