Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Apr. 01, 2017	Apr. 02, 2016
Net sales	$ 1,682,262	$ 1,611,174	$ 3,402,239	$ 3,145,888
Cost of sales	1,549,052	1,474,462	3,136,867	2,885,538
Gross profit	133,210	136,712	265,372	260,350
Operating expenses:
Selling, general and administrative	62,388	63,494	127,528	121,187
Research and development	8,437	9,997	16,608	19,644
Other	4,219	2,122	4,414	4,367
Total operating expenses	75,044	75,613	148,550	145,198
Operating income	58,166	61,099	116,822	115,152
Interest income	238	159	439	307
Interest expense	(5,486)	(6,353)	(10,753)	(12,231)
Other income, net	3,812	489	5,069	271
Interest and other, net	(1,436)	(5,705)	(5,245)	(11,653)
Income before income taxes	56,730	55,394	111,577	103,499
Provision for income taxes	25,013	25,033	34,996	46,000
Net income	$ 31,717	$ 30,361	$ 76,581	$ 57,499
Net income per share:
Basic	$ 0.42	$ 0.40	$ 1.03	$ 0.75
Diluted	$ 0.41	$ 0.39	$ 0.99	$ 0.72
Weighted average shares used in computing per share amounts:
Basic	74,761	75,477	74,156	76,605
Diluted	77,864	78,525	77,531	79,740