CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Nov. 01, 2013
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) [Abstract]
Total revenue	$ 683,428	$ 649,141
Cost of goods sold	222,295	205,929
Gross profit	461,133	443,212
Labor and other related expenses	242,327	236,747
Other store operating expenses	130,172	125,341
Store operating income	88,634	81,124
General and administrative expenses	33,192	36,887
Operating income	55,442	44,237
Interest expense	4,424	4,407
Income before income taxes	51,018	39,830
Provision for income taxes	16,994	12,670
Net income	$ 34,024	$ 27,160
Net income per share:
Basic (in dollars per share)	$ 1.43	$ 1.14
Diluted (in dollars per share)	$ 1.42	$ 1.14
Weighted average shares:
Basic (in shares)	23,862,195	23,817,436
Diluted (in shares)	24,001,438	23,925,088
Dividends declared per share (in dollars per share)	$ 1.00	$ 0.75