Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Common Share - Additional Information (Detail)

v3.7.0.1
Net Income Per Common Share - Additional Information (Detail) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jul. 29, 2017
Jul. 30, 2016
Jul. 29, 2017
Jul. 30, 2016
Earnings Per Share [Abstract]        
Employee stock options excluded from the computation of net income per common share 112 117 151 388