Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements Of Income [Abstract]
Sales	$ 2,253,030	$ 2,402,143	$ 2,089,253
Cost of sales	2,114,195	2,214,728	1,943,188
Gross profit	138,835	187,415	146,065
Selling, general and administrative expenses	89,665	92,245	85,500
Restructuring charges	4,515	6,724	8,264
Thailand flood related charges, net of insurance	3,362
Income from operations	41,293	88,446	52,301
Interest expense	(1,327)	(1,362)	(1,399)
Interest income	1,768	1,621	2,210
Other expense	(602)	(1,689)	(1,705)
Income before income taxes	41,132	87,016	51,407
Income tax expense (benefit)	(10,827)	7,258	(1,974)
Net income	$ 51,959	$ 79,758	$ 53,381
Earnings per share:
Basic	$ 0.88	$ 1.28	$ 0.82
Diluted	$ 0.87	$ 1.27	$ 0.82
Weighted-average number of shares outstanding:
Basic	59,284	62,141	64,758
Diluted	59,773	62,692	65,116