Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Detail)

v3.3.1.900
Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Jan. 31, 2016
Oct. 31, 2015
Jul. 31, 2015
Apr. 30, 2015
Jan. 31, 2015
Oct. 31, 2014
Jul. 31, 2014
Apr. 30, 2014
Jan. 31, 2016
Jan. 31, 2015
Jan. 31, 2014
Earnings Per Share [Abstract]                      
Net loss from continuing operations                 $ (47,697) $ (27,489) $ (2,227)
Net income (loss) from discontinued operations                   5 (803)
Net loss $ (22,280) $ (10,565) $ (5,027) $ (9,825) $ (6,140) $ (6,309) $ (5,568) $ (9,467) $ (47,697) $ (27,484) $ (3,030)
Weighted average shares used in computing net loss per share-basic and diluted                 33,506 32,772 32,718
Net loss per share-basic and diluted:                      
Loss from continuing operations                 $ (1.42) $ (0.84) $ (0.07)
Income (loss) from discontinued operations                   0.00 (0.02)
Net loss per share-basic and diluted:                 $ (1.42) $ (0.84) $ (0.09)