Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Apr. 04, 2015	Mar. 29, 2014
Income Statement [Abstract]
Revenue, Net	$ 651,285	$ 557,616	$ 1,315,975	$ 1,091,521
Cost of sales	(591,508)	(504,781)	(1,194,784)	(987,184)
Gross profit	59,777	52,835	121,191	104,337
Selling and administrative expenses	30,325	27,790	61,266	53,926
Restructuring Costs and Asset Impairment Charges	0	6,045	1,691	9,650
Operating income	29,452	19,000	58,234	40,761
Other income (expense):
Interest expense	(3,383)	(3,082)	(7,160)	(5,896)
Interest income	788	683	1,686	1,322
Miscellaneous	(60)	671	78	911
Income before income taxes	26,797	17,272	52,838	37,098
Income tax expense (benefit)	3,203	(1,244)	6,165	919
Net income	23,594	18,516	46,673	36,179
Earnings per share:
Basic	$ 0.70	$ 0.55	$ 1.39	$ 1.07
Diluted	$ 0.69	$ 0.53	$ 1.36	$ 1.04
Weighted average shares outstanding:
Basic	33,606	33,868	33,604	33,799
Diluted	34,342	34,703	34,391	34,698
Comprehensive income:
Net income	23,594	18,516	46,673	36,179
Derivative instrument fair market value adjustment - net of income tax	(1,314)	1,386	(5,958)	863
Foreign currency translation adjustments	(1,366)	(2,901)	(6,727)	(480)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2,680)	(1,515)	(12,685)	383
Comprehensive income	$ 20,914	$ 17,001	$ 33,988	$ 36,562