Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail)

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Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jul. 31, 2014
Goodwill [Roll Forward]  
Goodwill, Beginning balance $ 45,150
Cumulative translation adjustment (281)
Goodwill, Ending balance $ 44,869