CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Sales	$ 1,422,243	$ 1,298,928	$ 1,261,825
Cost of sales	1,033,416	948,769	918,900
Gross profit	388,827	350,159	342,925
Operating and administrative expense	313,516	293,222	280,767
Depreciation and amortization	19,759	18,621	16,900
Operating income	55,552	38,316	45,258
Interest expense	(4,415)	(4,280)	(3,660)
Interest income	2,571	2,207	2,020
Income before income taxes	53,708	36,243	43,618
Income taxes	22,263	15,261	18,237
Net income	$ 31,445	$ 20,982	$ 25,381
Class A Common Stock
Basic net income per share	$ 2.74	$ 1.86	$ 2.28
Diluted net income per share	$ 2.28	$ 1.54	$ 1.88
Class B Common Stock
Basic net income per share	$ 1.78	$ 1.21	$ 1.48
Diluted net income per share	$ 1.77	$ 1.21	$ 1.47