Net Revenues Classifications (Revenues by Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Aug. 25, 2012	May 26, 2012	Feb. 25, 2012	Nov. 26, 2011	Aug. 27, 2011	May 28, 2011	Feb. 26, 2011	Nov. 27, 2010	Aug. 25, 2012	Aug. 27, 2011	Aug. 28, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 162,533	$ 155,709	$ 131,600	$ 131,837	$ 130,546	$ 135,568	$ 106,593	$ 123,711	$ 581,679	$ 496,418	$ 449,484
Net revenues (percent)									100.00%	100.00%	100.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									522,515	446,616	413,154
Net revenues (percent)									89.80%	90.00%	91.90%
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues									$ 59,164	$ 49,802	$ 36,330
Net revenues (percent)									10.20%	10.00%	8.10%