CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Jul. 29, 2016	Jul. 31, 2015	Aug. 01, 2014
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Total revenue	$ 2,912,351	$ 2,842,284	$ 2,683,677
Cost of goods sold (exclusive of depreciation and rent)	928,176	924,171	872,758
Labor and other related expenses	1,006,188	992,382	966,593
Other store operating expenses	554,534	523,307	506,533
Store operating income	423,453	402,424	337,793
General and administrative expenses	142,982	147,544	129,387
Operating income	280,471	254,880	208,406
Interest expense	14,052	16,679	17,557
Income before income taxes	266,419	238,201	190,849
Provision for income taxes	77,120	74,298	58,721
Net income	$ 189,299	$ 163,903	$ 132,128
Net income per share - basic (in dollars per share)	$ 7.91	$ 6.85	$ 5.55
Net income per share - diluted (in dollars per share)	$ 7.86	$ 6.82	$ 5.51
Basic weighted average shares outstanding (in shares)	23,945,041	23,918,368	23,817,768
Diluted weighted average shares outstanding (in shares)	24,074,273	24,048,924	23,966,015