Segment Information and Enterprise-Wide Disclosure (Tables)

12 Months Ended

Dec. 31, 2013

Geographic Areas, Long-Lived Assets [Abstract]

Schedule Of Revenues From External Customers And Long Lived Assets By Geographical Areas [Table Text Block]

2013		Asia		North America		Europe		Consolidated
Total sales	$	750,339	$	143,251	$	165,179	$	1,058,769
Inter-company sales		(75,731)		(65,947)		(90,245)		(231,923)
Net sales	$	674,608	$	77,304	$	74,934	$	826,846
Property, plant and equipment	$	268,196	$	30,040	$	23,777	$	322,013
Assets	$	858,114	$	120,104	$	184,040	$	1,162,258
2012		Asia		North America		Europe		Consolidated
Total sales	$	573,085	$	133,973	$	154,955	$	862,013
Inter-company sales		(75,230)		(66,626)		(86,351)		(228,207)
Net sales	$	497,855	$	67,347	$	68,604	$	633,806
Property, plant and equipment	$	186,563	$	31,309	$	25,424	$	243,296
Assets	$	554,603	$	136,261	$	229,199	$	920,063
2011		Asia		North America		Europe		Consolidated
Total sales	$	559,109	$	137,789	$	194,455	$	891,353
Inter-company sales		(82,958)		(61,907)		(111,237)		(256,102)
Net sales	$	476,151	$	75,882	$	83,218	$	635,251
Property, plant and equipment	$	162,022	$	33,684	$	29,687	$	225,393
Assets	$	494,375	$	112,863	$	185,826	$	793,064

Geographic Areas, Revenues from External Customers [Abstract]

Schedule of Revenue by Countries [Table Text Block]

			% of Total
2013		Revenue	Revenue
China	$	522,587	63%
U.S.		72,232	9%
Korea		68,693	8%
Germany		45,631	6%
Singapore		43,066	5%
Taiwan		30,233	4%
All others		44,404	5%
Total	$	826,846	100%
			% of Total
2012		Revenue	Revenue
China	$	381,307	60%
U.S.		62,862	10%
Korea		52,670	8%
Germany		41,037	6%
Singapore		26,877	4%
Taiwan		20,973	3%
All others		48,080	9%
Total	$	633,806	100%
			% of Total
2011		Revenue	Revenue
China	$	359,647	57%
U.S.		71,796	11%
Germany		48,264	8%
Korea		39,051	6%
Taiwan		33,437	5%
Singapore		24,036	4%
All others		59,020	9%
Total	$	635,251	100%