Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jan. 31, 2016
Jan. 31, 2016
Jan. 31, 2015
Goodwill [Roll Forward]      
Goodwill, Beginning balance   $ 41,008 $ 45,150
Acquisition of Timeline Labs   15,787  
Timeline Labs goodwill impairment $ 0 (15,787)  
Cumulative translation adjustment   (833) (4,142)
Goodwill, Ending balance $ 40,175 $ 40,175 $ 41,008