Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 17, 2018	Nov. 18, 2017
Income Statement [Abstract]
Net sales	$ 2,641,733	$ 2,589,131
Cost of sales, including warehouse and delivery expenses	1,224,259	1,223,283
Gross profit	1,417,474	1,365,848
Operating, selling, general and administrative expenses	929,656	897,094
Operating profit	487,818	468,754
Interest expense, net	39,006	38,889
Income before income taxes	448,812	429,865
Income tax expense	97,406	148,862
Net income	$ 351,406	$ 281,003
Weighted average shares for basic earnings per share	25,629	27,638
Effect of dilutive stock equivalents	468	458
Weighted average shares for diluted earnings per share	26,097	28,096
Basic earnings per share	$ 13.71	$ 10.17
Diluted earnings per share	$ 13.47	$ 10.00