Earnings Per Share - Components of Basic and Diluted Net Income Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Apr. 29, 2017
Apr. 30, 2016
Numerator:    
Net (loss) income $ (4,049) $ 2,418
Denominator:    
Weighted-average number of common shares (basic) 36,235 37,547
Dilutive effect of stock-based awards 0 177
Weighted-average number of common shares (diluted) 36,235 37,724
(Loss) earnings per share:    
Basic (in dollars per share) $ (0.11) $ 0.06
Diluted (in dollars per share) $ (0.11) $ 0.06