Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail)

v3.2.0.727
Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail)
$ in Thousands
6 Months Ended
Jul. 31, 2015
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance $ (5,754)
Other comprehensive loss (639)
Ending balance (6,393)
Foreign Currency Translation Adjustment [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance (5,797)
Other comprehensive loss (624)
Ending balance (6,421)
Changes in Fair Value of Available for Sale Investments [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning balance 43
Other comprehensive loss (15)
Ending balance $ 28