Annual report pursuant to Section 13 and 15(d)

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

v2.4.1.9
Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Jan. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]    
2016 $ 3,076us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2017 2,195us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2018 1,272us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2019 649us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2020 121us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Fiscal 2021 and thereafter 1us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Finite-lived intangible assets, Net $ 7,314us-gaap_FiniteLivedIntangibleAssetsNet $ 12,655us-gaap_FiniteLivedIntangibleAssetsNet