Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance at January 31, 2014 $ (2,132)
Other comprehensive income 525
Balance at April 30, 2014 (1,607)
Foreign Currency Translation Adjustment [Member]
 
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance at January 31, 2014 (2,150)
Other comprehensive income 520
Balance at April 30, 2014 (1,630)
Changes in Fair Value of Available for Sale Investments [Member]
 
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance at January 31, 2014 18
Other comprehensive income 5
Balance at April 30, 2014 $ 23