EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Earnings per share
Anti-dilutive stock options shares excluded from the computation of earnings per share (in shares)	1,900	200
Basic earnings per common share:
Net income	$ 70,765	$ 66,738
Income available to common shareholders - Basic	$ 70,289	$ 66,448
Weighted-average common shares outstanding - Basic (in shares)	206,994	205,632
Basic earnings per common share (in dollars per share)	$ 0.34	$ 0.32
Diluted earnings per common share:
Net income	$ 70,765	$ 66,738
Income available to common shareholders - Diluted	$ 70,294	$ 66,453
Weighted-average common shares outstanding - Basic (in shares)	206,994	205,632
Weighted-average common shares outstanding - Diluted (in shares)	208,973	209,050
Diluted earnings per common share (in dollars per share)	$ 0.34	$ 0.32
Stock options
Diluted earnings per common share:
Effect of dilutive stock options (in shares)	1,979	3,418
Restricted shares
Basic earnings per common share:
Less income related to unvested restricted shares	$ (476)	$ (290)
Diluted earnings per common share:
Less income related to unvested restricted shares	$ (471)	$ (285)