Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 01, 2018	Dec. 02, 2017
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 831,597	$ 768,561
Cost of goods sold	473,612	433,492
Gross profit	357,985	335,069
Operating expenses	254,985	235,791
Income from operations	103,000	99,278
Other (expense) income:
Interest expense	(4,056)	(3,237)
Interest income	162	163
Other (expense) income, net	2	(408)
Total other expense	(3,892)	(3,482)
Income before provision for income taxes	99,108	95,796
Provision for income taxes	24,876	36,211
Net income	$ 74,232	$ 59,585
Net income per common share:
Basic	$ 1.34	$ 1.06
Diluted	$ 1.33	$ 1.05
Weighted average shares used in computing net income per common share:
Basic	55,502	56,287
Diluted	55,831	56,504
Cash dividends declared per common share	$ 0.63	$ 0.48