Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 30, 2013	Nov. 24, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 78,027	$ 80,279
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	255	32
Other Comprehensive Income, Other, Net of Tax	18	14
Other comprehensive income	273	46
Comprehensive income	$ 78,300	$ 80,325