CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 28, 2017	Apr. 29, 2016	Apr. 28, 2017	Apr. 29, 2016
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) [Abstract]
Total revenue	$ 700,410	$ 700,136	$ 2,183,063	$ 2,166,767
Cost of goods sold (exclusive of depreciation and rent)	205,882	212,382	673,911	700,287
Labor and other related expenses	250,819	249,324	759,193	745,581
Other store operating expenses	136,231	135,011	415,136	411,821
Store operating income	107,478	103,419	334,823	309,078
General and administrative expenses	36,000	36,391	104,905	106,217
Operating income	71,478	67,028	229,918	202,861
Interest expense	3,389	3,436	10,703	10,549
Income before income taxes	68,089	63,592	219,215	192,312
Provision for income taxes	21,165	14,423	71,209	54,036
Net income	$ 46,924	$ 49,169	$ 148,006	$ 138,276
Net income per share:
Basic (in dollars per share)	$ 1.95	$ 2.05	$ 6.16	$ 5.77
Diluted (in dollars per share)	$ 1.95	$ 2.04	$ 6.14	$ 5.75
Weighted average shares:
Basic (in shares)	24,042,573	23,941,188	24,028,175	23,945,184
Diluted (in shares)	24,121,203	24,073,778	24,111,753	24,064,624
Dividends declared per share (in dollars per share)	$ 1.15	$ 1.10	$ 3.45	$ 3.30
Dividends paid per share (in dollars per share)	$ 1.15	$ 1.10	$ 3.45	$ 6.30