Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Income Statement [Abstract]
Revenue, Net	$ 557,616	$ 557,824	$ 1,091,521	$ 1,088,356
Cost of sales	(504,781)	(505,803)	(987,184)	(985,173)
Gross profit	52,835	52,021	104,337	103,183
Selling and administrative expenses	27,790	28,833	53,926	58,511
Restructuring Costs and Asset Impairment Charges	6,045	0	9,650	0
Operating income	19,000	23,188	40,761	44,672
Other income (expense):
Interest expense	(3,082)	(3,640)	(5,896)	(7,360)
Interest income	683	383	1,322	780
Miscellaneous	671	0	911	(475)
Income before income taxes	17,272	19,931	37,098	37,617
Income tax expense	(1,244)	1,956	919	3,026
Net income	18,516	17,975	36,179	34,591
Earnings per share:
Basic	$ 0.55	$ 0.52	$ 1.07	$ 1.01
Diluted	$ 0.53	$ 0.52	$ 1.04	$ 1.00
Weighted average shares outstanding:
Basic	33,868	34,286	33,799	34,253
Diluted	34,703	34,694	34,698	34,673
Comprehensive income:
Net income	18,516	17,975	36,179	34,591
Derivative instrument fair market value adjustment - net of income tax	1,386	1,234	863	723
Foreign currency translation adjustments	(2,901)	(2,035)	(480)	590
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1,515)	(801)	383	1,313
Comprehensive income	$ 17,001	$ 17,174	$ 36,562	$ 35,904