Condensed Consolidated Statements Of Income And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 26, 2012	May 28, 2011	May 26, 2012	May 28, 2011
Condensed Consolidated Statements Of Income And Comprehensive Income [Abstract]
Net sales	$ 611,970	$ 532,366	$ 1,720,647	$ 1,488,555
Cost of goods sold	332,387	280,804	929,471	793,001
Gross profit	279,583	251,562	791,176	695,554
Operating expenses	168,724	153,428	486,966	439,672
Income from operations	110,859	98,134	304,210	255,882
Other (Expense) Income:
Interest expense	(63)	(51)	(179)	(211)
Interest income	42	12	160	42
Other income (expense), net	15	(120)	(5)	(123)
Total other expense	(6)	(159)	(24)	(292)
Income before provision for income taxes	110,853	97,975	304,186	255,590
Provision for income taxes	40,642	35,889	114,070	96,255
Net income	70,211	62,086	190,116	159,335
Other comprehensive income, net of income tax:
Foreign currency translation adjustments	(132)	289	(505)	730
Comprehensive income	$ 70,079	$ 62,375	$ 189,611	$ 160,065
Net income per common share:
Basic	$ 1.11	$ 0.97	$ 3.02	$ 2.52
Diluted	$ 1.10	$ 0.97	$ 3.00	$ 2.50
Weighted average shares used in computing net income per common share:
Basic	62,651	63,183	62,517	62,809
Diluted	63,055	63,630	62,896	63,250
Cash dividend declared per common share	$ 0.25	$ 0.22	$ 0.75	$ 1.66