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Intangible Assets - Estimated Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]  
Fiscal 2015 $ 1,649
Fiscal 2016 1,650
Fiscal 2017 1,579
Fiscal 2018 1,154
Thereafter 519
Intangible assets, Net $ 6,551