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Net Income (Loss) Per Share - Schedule of Weighted-Average Shares Used for Net Income (Loss) per Share (Detail) - shares
3 Months Ended
May 05, 2018
Apr. 29, 2017
Earnings Per Share [Abstract]    
Weighted-average shares—basic 21,545,025 37,609,516
Effect of dilutive stock-based awards 3,685,203  
Weighted-average shares—diluted 25,230,228 37,609,516