Consolidated Statements Of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net sales	$ 618,832	$ 667,616	$ 1,858,200	$ 1,902,940
Cost of sales	557,647	605,118	1,668,859	1,737,111
Gross profit	61,185	62,498	189,341	165,829
Selling and administrative expenses	31,716	29,775	93,398	84,812
Restructuring and other charges	0	1,805	0	5,229
Operating income	29,469	30,918	95,943	75,788
Other income (expense):
Interest expense	(3,294)	(3,637)	(9,830)	(10,845)
Interest Income	1,299	1,134	3,555	3,081
Miscellaneous	(103)	297	1,147	(2,451)
Income before income taxes	27,371	28,712	90,815	65,573
Income tax expense	1,792	2,613	7,762	8,239
Net income	$ 25,579	$ 26,099	$ 83,053	$ 57,334
Earnings per share:
Basic	$ 0.76	$ 0.78	$ 2.47	$ 1.72
Diluted	$ 0.74	$ 0.76	$ 2.40	$ 1.68
Weighted average shares outstanding:
Basic	33,669	33,402	33,636	33,379
Diluted	34,568	34,174	34,585	34,043
Comprehensive income:
Net income	$ 25,579	$ 26,099	$ 83,053	$ 57,334
Derivative instrument fair value adjustments	2,991	(1,329)	747	12,458
Foreign currency translation adjustments	6,367	(7,570)	(2,379)	(13,154)
Other comprehensive income (loss)	9,358	(8,899)	(1,632)	(696)
Total comprehensive income	$ 34,937	$ 17,200	$ 81,421	$ 56,638