Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements Of Income [Abstract]
Sales	$ 630,031	$ 585,549	$ 1,223,448	$ 1,123,861
Cost of sales	584,040	547,798	1,136,949	1,048,486
Gross profit	45,991	37,751	86,499	75,375
Selling, general and administrative expenses	22,779	23,105	45,280	44,948
Restructuring charges	286	480	250	480
Thailand flood related charges	4,658		14,876
Income from operations	18,268	14,166	26,093	29,947
Interest expense	(322)	(331)	(647)	(663)
Interest income	231	443	609	847
Other income (expense)	(448)	731	(82)	296
Income before income taxes	17,729	15,009	25,973	30,427
Income tax expense	4,149	308	6,795	1,213
Net income	$ 13,580	$ 14,701	$ 19,178	$ 29,214
Earnings per share:
Basic	$ 0.24	$ 0.24	$ 0.34	$ 0.48
Diluted	$ 0.24	$ 0.24	$ 0.33	$ 0.48
Weighted-average number of shares outstanding:
Basic	56,963	60,159	57,223	60,537
Diluted	57,198	60,567	57,599	61,125