Segment Information (Details) (USD $) In Thousands	3 Months Ended								12 Months Ended
	Jul. 29, 2011	Apr. 29, 2011	Jan. 28, 2011	Oct. 29, 2010	Jul. 30, 2010	Apr. 30, 2010	Jan. 29, 2010	Oct. 30, 2009	Jul. 29, 2011	Jul. 30, 2010	Jul. 31, 2009
Segment Reporting Information [Line Items]
Revenue	$ 612,942	$ 582,525	$ 640,277	$ 598,691	$ 612,483	$ 578,233	$ 632,616	$ 581,183	$ 2,434,435	$ 2,404,515	$ 2,367,285
Restaurant [Member]
Segment Reporting Information [Line Items]
Revenue									1,934,049	1,911,664	1,875,688
Retail [Member]
Segment Reporting Information [Line Items]
Revenue									$ 500,386	$ 492,851	$ 491,597