Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Future Amortization Expense (Detail)

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Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Future Amortization Expense (Detail) - USD ($)
$ in Thousands
Jul. 31, 2016
Jan. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
2017 (for the remaining six months) $ 1,259  
2018 1,729  
2019 1,040  
2020 555  
2021 390  
2022 and thereafter 1,106  
Finite-life intangible assets, Net $ 6,079 $ 4,126