Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Net sales	$ 1,476,712	$ 1,427,642	$ 2,924,210	$ 2,922,587
Cost of sales	1,357,745	1,327,338	2,694,458	2,725,355
Gross profit	118,967	100,304	229,752	197,232
Operating expenses:
Selling, general and administrative	62,332	58,954	121,514	118,822
Research and development	8,829	6,020	16,734	11,415
Restructuring and integration costs	2,565	6,925	6,269	10,872
Amortization of intangible assets	474	474	948	948
Asset impairments	0	1,100	0	1,100
Gain on sales of long-lived assets	(530)	(18,967)	(530)	(23,185)
Total operating expenses	73,670	54,506	144,935	119,972
Operating income	45,297	45,798	84,817	77,260
Interest income	174	246	980	444
Interest expense	(7,482)	(10,416)	(14,955)	(23,500)
Other income (expense), net	626	(1,477)	1,504	(16,399)
Interest and other, net	(6,682)	(11,647)	(12,471)	(39,455)
Income before income taxes	38,615	34,151	72,346	37,805
Provision for income taxes	17,775	12,960	28,405	15,993
Net income	$ 20,840	$ 21,191	$ 43,941	$ 21,812
Net income per share:
Basic	$ 0.25	$ 0.26	$ 0.53	$ 0.27
Diluted	$ 0.24	$ 0.25	$ 0.51	$ 0.26
Weighted average shares used in computing per share amounts:
Basic	82,728	82,543	83,247	82,226
Diluted	86,144	84,683	86,723	84,369