CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2016	May. 02, 2015	Apr. 30, 2016	May. 02, 2015
Income Statement [Abstract]
Net sales	$ 2,132,104	$ 2,114,643	$ 6,256,465	$ 6,123,665
Cost of sales	1,809,671	1,788,729	5,322,577	5,179,556
Gross profit	322,433	325,914	933,888	944,109
Operating expenses	256,417	256,942	767,471	766,438
Restructuring and asset impairment expenses	0	0	4,794	803
Total operating expenses	256,417	256,942	772,265	767,241
Operating income	66,016	68,972	161,623	176,868
Other expense (income):
Interest expense	4,384	3,920	11,734	10,729
Interest income	(487)	(123)	(1,037)	(285)
Other, net	(557)	(4,396)	373	(3,785)
Total other expense (income), net	3,340	(599)	11,070	6,659
Income before income taxes	62,676	69,571	150,553	170,209
Provision for income taxes	24,405	27,821	59,468	67,573
Net income	$ 38,271	$ 41,750	$ 91,085	$ 102,636
Basic per share data:
Net income (usd per share)	$ 0.76	$ 0.83	$ 1.81	$ 2.05
Weighted average basic shares of common stock outstanding	50,350	50,079	50,290	49,998
Diluted per share data:
Net income (usd per share)	$ 0.76	$ 0.83	$ 1.81	$ 2.04
Weighted average diluted shares of common stock outstanding	50,379	50,348	50,360	50,246