Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Net sales	$ 7,110,130	$ 6,868,619	$ 6,481,181
Cost of sales	6,646,347	6,348,708	5,966,899
Gross profit	463,783	519,911	514,282
Operating expenses:
Selling, general and administrative	250,924	251,568	244,604
Research and development	30,754	33,716	37,746
Restructuring costs	29,146	1,339	2,701
Goodwill impairment	30,610	0	0
Total operating expenses	2,908	6,821	4,446
Total operating expenses	344,342	293,444	289,497
Operating income	119,441	226,467	224,785
Interest income	1,268	1,265	680
Interest expense	(27,734)	(21,934)	(24,911)
Other income, net	4,564	7,682	4,063
Interest and other, net	(21,902)	(12,987)	(20,168)
Income before income taxes	97,539	213,480	204,617
Provision for income taxes	193,072	74,647	16,779
Net income (loss)	$ (95,533)	$ 138,833	$ 187,838
Net income (loss) per share:
Basic	$ (1.37)	$ 1.86	$ 2.50
Diluted	$ (1.37)	$ 1.78	$ 2.38
Weighted-average shares used in computing per share amounts:
Basic	69,833	74,481	75,094
Diluted	69,833	78,128	78,787