Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
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 9 Months Ended
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Earnings Per Share [Abstract]        
Numerator for diluted net income per share - net income $ 87,562 $ 71,070 $ 269,542 $ 212,185
Denominator for basic net income per share - weighted-average common shares 62,371 63,882 62,625 64,050
Dilutive effect of stock options and non-vested stock 321 314 307 333
Denominator for diluted net income per share 62,692 64,196 62,932 64,383
Net income per common share:        
Basic $ 1.40 $ 1.11 $ 4.30 $ 3.31
Diluted $ 1.40 $ 1.11 $ 4.28 $ 3.30