Gift Cards (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Gift Cards [Abstract]
Recognized gift card breakage	$ 5,350	$ 4,929	$ 10,645	$ 9,914
Gift card liabilities	$ 287,268	$ 270,830	$ 287,268	$ 270,830