CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Oct. 29, 2011	Jan. 29, 2011	Oct. 30, 2010
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000	200,000,000
Common stock, shares issued	98,284,611	97,247,847	97,181,614
Common stock, shares outstanding	70,511,172	70,261,905	70,461,156
Treasury stock, shares	27,773,439	26,985,942	26,720,458