Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Consolidated Statements Of Income [Abstract]
Sales	$ 716,868	$ 607,522	$ 1,356,212	$ 1,149,966
Cost of sales	659,117	563,155	1,247,338	1,068,765
Gross profit	57,751	44,367	108,874	81,201
Selling, general and administrative expenses	28,700	23,311	56,853	45,710
Restructuring charges and integration and acquisition-related costs	1,907	5,667	4,016	6,109
Asset impairment charge and other	0	2,606	0	2,606
Thailand flood related items, net of insurance	0	0	(1,571)	0
Income from operations	27,144	12,783	49,576	26,776
Interest expense	(473)	(463)	(949)	(922)
Interest income	668	291	1,183	705
Other income (expense)	99	(501)	125	(185)
Income before income taxes	27,438	12,110	49,935	26,374
Income tax expense	5,288	3,653	8,660	6,430
Net income	$ 22,150	$ 8,457	$ 41,275	$ 19,944
Earnings per share:
Basic	$ 0.41	$ 0.16	$ 0.77	$ 0.37
Diluted	$ 0.41	$ 0.16	$ 0.76	$ 0.36
Weighted-average number of shares outstanding:
Basic	53,826	54,207	53,738	54,500
Diluted	54,405	54,500	54,394	54,897