CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 03, 2014	Apr. 27, 2013	May 03, 2014	Apr. 27, 2013
Income Statement [Abstract]
Net sales	$ 1,781,729	$ 1,566,217	$ 5,029,781	$ 4,421,957
Cost of sales	1,483,600	1,303,220	4,192,309	3,681,334
Gross profit	298,129	262,997	837,472	740,623
Operating expenses	235,514	209,140	677,986	609,591
Restructuring and asset impairment expenses	0	0	0	1,629
Total operating expenses	235,514	209,140	677,986	611,220
Operating income	62,615	53,857	159,486	129,403
Other expense (income):
Interest expense	2,308	1,591	5,944	3,942
Interest income	(129)	(133)	(374)	(474)
Other, net	(217)	121	404	5,103
Total other expense, net	1,962	1,579	5,974	8,571
Income before income taxes	60,653	52,278	153,512	120,832
Provision for income taxes	24,261	20,657	61,405	45,055
Net income	$ 36,392	$ 31,621	$ 92,107	$ 75,777
Basic per share data:
Net income (usd per share)	$ 0.73	$ 0.64	$ 1.86	$ 1.54
Weighted average basic shares of common stock outstanding	49,635	49,303	49,577	49,200
Diluted per share data:
Net income (usd per share)	$ 0.73	$ 0.64	$ 1.85	$ 1.53
Weighted average diluted shares of common stock outstanding	49,931	49,567	49,860	49,483