CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 28, 2012	Jan. 29, 2011
Net sales	$ 1,286,910	$ 1,114,449	$ 2,504,338	$ 2,167,416
Cost of sales	1,063,763	915,817	2,064,078	1,776,452
Gross profit	223,147	198,632	440,260	390,964
Operating expenses	185,760	166,890	371,473	329,366
Restructuring and asset impairment expenses (recoveries)	(126)		5,219	200
Total operating expenses	185,634	166,890	376,692	329,566
Operating income	37,513	31,742	63,568	61,398
Other expense (income):
Interest expense	1,382	1,298	2,455	2,684
Interest income	(219)	(57)	(389)	(265)
Other, net	27	(202)	168	(255)
Total other expense	1,190	1,039	2,234	2,164
Income before income taxes	36,323	30,703	61,334	59,234
Provision for income taxes	14,312	11,974	24,166	23,101
Net income	$ 22,011	$ 18,729	$ 37,168	$ 36,133
Basic per share data:
Net income (in dollars per share)	$ 0.45	$ 0.39	$ 0.76	$ 0.78
Weighted average basic shares of common stock outstanding (in shares)	48,774	48,232	48,665	46,508
Diluted per share data:
Net income (in dollars per share)	$ 0.45	$ 0.39	$ 0.76	$ 0.77
Weighted average diluted shares of common stock outstanding (in shares)	49,019	48,538	48,933	46,819