CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 03, 2013	Apr. 27, 2012	May 03, 2013	Apr. 27, 2012
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) [Abstract]
Total revenue	$ 640,407	$ 608,514	$ 1,970,529	$ 1,880,185
Cost of goods sold	201,982	189,615	644,027	611,313
Gross profit	438,425	418,899	1,326,502	1,268,872
Labor and other related expenses	241,864	235,275	719,474	691,176
Other store operating expenses	116,408	109,947	354,859	338,127
Store operating income	80,153	73,677	252,169	239,569
General and administrative expenses	35,981	34,569	105,492	108,500
Operating income	44,172	39,108	146,677	131,069
Interest expense	10,194	11,173	31,199	33,333
Income before income taxes	33,978	27,935	115,478	97,736
Provision for income taxes	9,376	8,961	32,516	29,351
Net income	$ 24,602	$ 18,974	$ 82,962	$ 68,385
Net income per share:
Basic (in dollars per share)	$ 1.04	$ 0.82	$ 3.50	$ 2.97
Diluted (in dollars per share)	$ 1.02	$ 0.81	$ 3.47	$ 2.93
Weighted average shares:
Basic (in shares)	23,760,589	23,132,730	23,683,133	22,990,544
Diluted (in shares)	24,006,821	23,535,765	23,913,226	23,329,230
Dividends declared per share (in dollars per share)	$ 0.50	$ 0.65	$ 1.50	$ 1.15