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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 6 Months Ended
Jul. 30, 2016
Aug. 01, 2015
Jul. 30, 2016
Aug. 01, 2015
Numerator:        
Net income $ 5,109 $ 5,715 $ 7,527 $ 1,579
Denominator:        
Weighted-average number of common shares (basic) 37,030 39,315 37,288 39,600
Dilutive effect of stock-based awards 83 13 131 6
Weighted-average number of common shares (diluted) 37,113 39,328 37,419 39,606
Earnings per share:        
Basic (in dollars per share) $ 0.14 $ 0.15 $ 0.20 $ 0.04
Diluted (in dollars per share) $ 0.14 $ 0.15 $ 0.20 $ 0.04