CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Oct. 27, 2012	Oct. 29, 2011
Net sales	$ 1,410,037	$ 1,217,428
Cost of sales	1,174,084	1,000,315
Gross profit	235,953	217,113
Operating expenses	197,758	185,713
Restructuring and asset impairment expenses	1,629	5,345
Total operating expenses	199,387	191,058
Operating income	36,566	26,055
Other expense (income):
Interest expense	978	1,073
Interest income	(173)	(170)
Other, net	4,781	141
Total other expense (income)	5,586	1,044
Income before income taxes	30,980	25,011
Provision for income taxes	9,444	9,854
Net income	$ 21,536	$ 15,157
Basic per share data:
Net income (in dollars per share)	$ 0.44	$ 0.31
Weighted average basic shares of common stock outstanding (in shares)	49,142	48,594
Diluted per share data:
Net income (in dollars per share)	$ 0.43	$ 0.31
Weighted average diluted shares of common stock outstanding (in shares)	49,585	48,889