CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 01, 2015	May 02, 2014	May 01, 2015	May 02, 2014
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) [Abstract]
Total revenue	$ 683,705	$ 643,298	$ 2,123,099	$ 1,990,930
Cost of goods sold (exclusive of depreciation and rent)	216,142	201,507	700,592	650,451
Labor and other related expenses	246,805	242,977	740,806	718,466
Other store operating expenses	126,711	121,060	390,609	374,501
Store operating income	94,047	77,754	291,092	247,512
General and administrative expenses	38,570	32,541	108,952	99,356
Operating income	55,477	45,213	182,140	148,156
Interest expense	4,030	4,327	13,138	13,205
Income before income taxes	51,447	40,886	169,002	134,951
Provision for income taxes	16,130	12,158	52,498	42,008
Net income	$ 35,317	$ 28,728	$ 116,504	$ 92,943
Net income per share:
Basic (in dollars per share)	$ 1.48	$ 1.21	$ 4.87	$ 3.90
Diluted (in dollars per share)	$ 1.47	$ 1.20	$ 4.85	$ 3.88
Weighted average shares:
Basic (in shares)	23,937,844	23,820,309	23,904,945	23,816,841
Diluted (in shares)	24,066,061	23,978,474	24,033,296	23,958,058
Dividends declared per share (in dollars per share)	$ 1.00	$ 1.75	$ 3.00	$ 3.25
Dividends paid per share (in dollars per share)	$ 1.00	$ 0.75	$ 3.00	$ 2.25