Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 26, 2011	Nov. 27, 2010
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 545,703	$ 472,827
Cost of goods sold	293,570	255,134
Gross profit	252,133	217,693
Operating expenses	155,309	140,543
Income from operations	96,824	77,150
Other (expense) income:
Interest expense	(46)	(99)
Interest income	50	25
Other expense, net	(4)	(31)
Total other expense		(105)
Income before provision for income taxes	96,824	77,045
Provision for income taxes	36,987	29,485
Net income	$ 59,837	$ 47,560
Net income per common share:
Basic	$ 0.95	$ 0.75
Diluted	$ 0.95	$ 0.75
Weighted average shares used in computing net income per common share:
Basic	62,285	62,370
Diluted	62,627	62,795
Cash dividend declared per common share	$ 0.25	$ 1.22