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Goodwill and Intangible Assets - Schedule of Future Amortization (Details) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
2013 $ 4,499us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2014 1,929us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2015 1,385us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2016 999us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2017 715us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Thereafter 1,600us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Total $ 11,127us-gaap_FiniteLivedIntangibleAssetsNet