Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 03, 2018	Mar. 04, 2017	Mar. 03, 2018	Mar. 04, 2017
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 768,987	$ 703,780	$ 1,537,548	$ 1,390,051
Cost of goods sold	431,764	389,218	865,256	766,754
Gross profit	337,223	314,562	672,292	623,297
Operating expenses	239,120	227,917	474,911	446,052
Income from operations	98,103	86,645	197,381	177,245
Other (expense) income:
Interest expense	(3,550)	(2,950)	(6,787)	(5,884)
Interest income	213	164	376	327
Other (expense) income, net	77	(54)	(331)	(338)
Total other expense	(3,260)	(2,840)	(6,742)	(5,895)
Income before provision for income taxes	94,843	83,805	190,639	171,350
(Benefit) provision for income taxes	(22,709)	30,246	13,502	63,503
Net income	$ 117,552	$ 53,559	$ 177,137	$ 107,847
Net income per common share:
Basic	$ 2.08	$ 0.94	$ 3.14	$ 1.90
Diluted	$ 2.06	$ 0.93	$ 3.12	$ 1.89
Weighted average shares used in computing net income per common share:
Basic	56,439	56,620	56,363	56,500
Diluted	56,892	57,213	56,698	56,910
Cash dividends declared per common share	$ 0.58	$ 0.45	$ 1.06	$ 0.90