Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Income Statement [Abstract]
Net sales	$ 2,654,290	$ 2,378,249	$ 2,228,031
Cost of sales	2,414,740	2,152,680	2,014,846
Gross profit	239,550	225,569	213,185
Operating expenses:
Selling, General and Administrative Expense	122,423	113,682	116,562
Restructuring and Impairment Charges	1,691	11,280	0
Restructuring Charges	1,691	11,280	0
Operating income	115,436	100,607	96,623
Other income (expense):
Interest expense	(13,964)	(12,295)	(12,638)
Investment Income, Interest	3,499	2,934	1,640
Miscellaneous income (expense)	1,324	2,079	(642)
Income before income taxes	106,295	93,325	84,983
Income tax expense (benefit)	11,963	6,112	2,724
Net income	$ 94,332	$ 87,213	$ 82,259
Earnings per share:
Earnings Per Share, Basic	$ 2.81	$ 2.58	$ 2.40
Earnings Per Share, Diluted	$ 2.74	$ 2.52	$ 2.36
Weighted average shares outstanding:
Basic	33,618	33,785	34,330
Diluted	34,379	34,655	34,892
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ (11,223)	$ 1,565	$ (2,701)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(13,830)	(3,220)	6,754
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(25,053)	(1,655)	4,053
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 69,279	$ 85,558	$ 86,312