Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Net sales	$ 6,868,619	$ 6,481,181	$ 6,374,541
Cost of sales	6,348,708	5,966,899	5,890,685
Gross profit	519,911	514,282	483,856
Operating expenses:
Selling, general and administrative	251,568	244,604	239,288
Research and development	33,716	37,746	33,083
Other	8,160	7,147	8,384
Total operating expenses	293,444	289,497	280,755
Operating income	226,467	224,785	203,101
Interest income	1,265	680	1,096
Interest expense	(21,934)	(24,911)	(25,011)
Other income, net	7,682	4,063	767
Loss on extinguishments of debt	0	0	(3,760)
Interest and other, net	(12,987)	(20,168)	(26,908)
Income before income taxes	213,480	204,617	176,193
Provision for (benefit from) income taxes	74,647	16,779	(201,068)
Net income	$ 138,833	$ 187,838	$ 377,261
Net income per share:
Basic	$ 1.86	$ 2.50	$ 4.61
Diluted	$ 1.78	$ 2.38	$ 4.41
Weighted-average shares used in computing per share amounts:
Basic	74,481	75,094	81,818
Diluted	78,128	78,787	85,641