Segment Information and Enterprise-Wide Disclosure (Tables)

12 Months Ended

Dec. 31, 2012

Geographic Areas, Long-Lived Assets [Abstract]

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

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
2010		Asia		North America		Europe		Consolidated
Total sales	$	499,315	$	149,029	$	177,063	$	825,407
Inter-company sales		(54,782)		(54,909)		(102,830)		(212,521)
Net sales	$	444,533	$	94,120	$	74,233	$	612,886
Property, plant and equipment	$	137,225	$	33,115	$	30,405	$	200,745
Assets	$	444,729	$	178,018	$	223,803	$	846,550

Geographic Areas, Revenues from External Customers [Abstract]

Schedule of Revenue by Countries [Table Text Block]

			% of Total
2012		Revenue	Revenue
China	$	223,473	35%
Taiwan		126,356	20%
Switzerland		57,200	9%
U.S.		54,949	9%
Korea		50,896	8%
U.K.		28,558	5%
Singapore		27,013	4%
Germany		24,416	4%
All others		40,945	6%
Total	$	633,806	100%
			% of Total
2011		Revenue	Revenue
China	$	206,965	33%
Taiwan		136,129	21%
Switzerland		57,696	8%
U.S.		47,892	8%
Korea		37,643	6%
Germany		30,838	5%
U.K.		30,065	5%
Singapore		23,492	4%
All others		64,531	10%
Total	$	635,251	100%
			% of Total
2010		Revenue	Revenue
China	$	187,633	31%
Taiwan		141,388	23%
U.S.		76,328	12%
Switzerland		58,583	10%
Korea		35,180	6%
Germany		31,704	5%
Singapore		24,468	4%
U.K.		24,337	4%
All others		33,265	5%
Total	$	612,886	100%