Annual report pursuant to Section 13 and 15(d)

Segment Information, Significant Customers and Geographic Information - Long-Lived Assets by Geographic Locations (Detail)

v3.3.1.900
Segment Information, Significant Customers and Geographic Information - Long-Lived Assets by Geographic Locations (Detail) - USD ($)
$ in Thousands
Jan. 31, 2016
Jan. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 23,891 $ 28,502
North America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 18,944 $ 21,214
Long-lived assets, Percentage 79.00% 74.00%
Europe and Middle East [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 3,575 $ 6,028
Long-lived assets, Percentage 15.00% 22.00%
Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 1,372 $ 1,260
Long-lived assets, Percentage 6.00% 4.00%