Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Common Share - Net Income Per Basic and Diluted Share (Detail)

v3.7.0.1
Net Income Per Common Share - Net Income Per Basic and Diluted Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jul. 29, 2017
Jul. 30, 2016
Jul. 29, 2017
Jul. 30, 2016
Earnings Per Share [Abstract]        
Numerator for diluted net income per share - net income $ 114,193 $ 90,004 $ 242,416 $ 181,980
Denominator for basic net income per share - weighted-average common shares 61,935 62,475 62,018 62,753
Dilutive effect of stock options and non-vested stock 444 338 465 314
Denominator for diluted net income per share 62,379 62,813 62,483 63,067
Net income per common share:        
Basic $ 1.84 $ 1.44 $ 3.91 $ 2.90
Diluted $ 1.83 $ 1.43 $ 3.88 $ 2.89