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Information about Geographic Areas - Long-Lived Assets by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2014
Jan. 31, 2014
Long-lived assets by geography    
Total long-lived assets $ 27,025 $ 2,445
North America [Member]
   
Long-lived assets by geography    
Total long-lived assets 26,075 1,341
Europe and other [Member]
   
Long-lived assets by geography    
Total long-lived assets 358 509
Asia Pacific [Member]
   
Long-lived assets by geography    
Total long-lived assets $ 592 $ 595