CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 29, 2016	Oct. 31, 2015
Income Statement [Abstract]
Net sales	$ 2,278,364	$ 2,076,649
Cost of sales	1,929,348	1,762,712
Gross profit	349,016	313,937
Operating expenses	295,677	257,224
Restructuring and asset impairment expenses	0	2,809
Total operating expenses	295,677	260,033
Operating income	53,339	53,904
Other expense (income):
Interest expense	4,522	3,748
Interest income	(99)	(152)
Other expense (income), net	383	173
Total other expense, net	4,806	3,769
Income before income taxes	48,533	50,135
Provision for income taxes	19,316	20,004
Net income	$ 29,217	$ 30,131
Basic per share data:
Net income (usd per share)	$ 0.58	$ 0.60
Weighted average basic shares of common stock outstanding	50,475	50,194
Diluted per share data:
Net income (usd per share)	$ 0.58	$ 0.60
Weighted average diluted shares of common stock outstanding	50,599	50,313