Segment Information and Enterprise-wide Disclosures (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Reporting Information, Revenue for Reportable Segment									$ 862,013	$ 891,353	$ 825,407
Revenues From Transactions Within Same Entity									(228,207)	(256,102)	(212,521)
Net sales	163,287	166,617	159,239	144,663	143,313	160,577	169,806	161,555	633,806	635,251	612,886
Property, plant and equipment	243,296				225,393				243,296	225,393	200,745
Total assets	920,063				793,064				920,063	793,064	846,550
Segment Reporting, Disclosure of Major Customers									Major customers – No customer accounted for 10% or greater of the Company’s total net sales in 2012, 2011 and 2010.
Asia [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Reporting Information, Revenue for Reportable Segment									573,085	559,109	499,315
Revenues From Transactions Within Same Entity									(75,230)	(82,958)	(54,782)
Net sales									497,855	476,151	444,533
Property, plant and equipment	186,563				162,022				186,563	162,022	137,225
Total assets	554,603				494,375				554,603	494,375	444,729
North America [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Reporting Information, Revenue for Reportable Segment									133,973	137,789	149,029
Revenues From Transactions Within Same Entity									(66,626)	(61,907)	(54,909)
Net sales									67,347	75,882	94,120
Property, plant and equipment	31,309				33,684				31,309	33,684	33,115
Total assets	136,261				112,863				136,261	112,863	178,018
Europe [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Reporting Information, Revenue for Reportable Segment									154,955	194,455	177,063
Revenues From Transactions Within Same Entity									(86,351)	(111,237)	(102,830)
Net sales									68,604	83,218	74,233
Property, plant and equipment	25,424				29,687				25,424	29,687	30,405
Total assets	$ 229,199				$ 185,826				$ 229,199	$ 185,826	$ 223,803