NET INCOME PER COMMON SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 29, 2012	May 01, 2011
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income	$ 93,114	$ 57,667
Common stock dividends paid to holders of Series A convertible preferred stock	(209)	(314)
Allocation of income to Series A convertible preferred stock	(4,231)	(3,088)
Net income available to common stockholders for basic net income per common share	$ 88,674	$ 54,265
Weighted average common shares outstanding for basic net income per common share	68,539	66,798
Weighted average impact of dilutive securities	1,588	1,605
Weighted average impact of assumed convertible preferred stock conversion	3,475	4,189
Total shares for diluted net income per common share	73,602	72,592
Basic net income per common share (in dollars per share)	$ 1.29	$ 0.81
Diluted net income per common share (in dollars per share)	$ 1.27	$ 0.79
Weighted average antidilutive securities	254	245