NET INCOME PER COMMON SHARE - DILUTED (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 30, 2011	Oct. 31, 2010	Oct. 30, 2011	Oct. 31, 2010
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Number Of Dilutive Shares Issued Upon Vesting			601	700
Net income available to common stockholders for basic net income per common share (add back section)	$ 105,648	$ 93,900	$ 222,722	$ 1,297
Common stock dividends paid to holders of Series A convertible preferred stock	157	157	471	0
Allocation of income to Series A convertible preferred stock	6,434	5,791	13,442	0
Net income available to common stockholders for diluted net income per common share	$ 112,239	$ 99,848	$ 236,635	$ 1,297