Segment Information and Enterprise-Wide Disclosure (Tables)

6 Months Ended

Jun. 30, 2013

Segment Information and Enterprise-Wide Disclosure [Abstract]

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

Three Months Ended		Asia		North America		Europe		Consolidated
June 30, 2013
Total sales	$	195,735	$	37,253	$	39,993	$	272,981
Inter-company sales		(18,873)		(18,657)		(21,072)		(58,602)
Net sales	$	176,862	$	18,596	$	18,921	$	214,379
Three Months Ended		Asia		North America		Europe		Consolidated
June 30, 2012
Total sales	$	145,699	$	34,071	$	45,505	$	225,275
Inter-company sales		(23,684)		(15,881)		(26,471)		(66,036)
Net sales	$	122,015	$	18,190	$	19,034	$	159,239
As Of And For The Six Months Ended		Asia		North America		Europe		Consolidated
June 30, 2013
Total sales	$	352,535	$	72,061	$	77,630	$	502,226
Inter-company sales		(34,896)		(35,424)		(40,563)		(110,883)
Net sales	$	317,639	$	36,637	$	37,067	$	391,343
Property, plant and equipment	$	277,608	$	30,579	$	23,100	$	331,287
Total assets	$	837,332	$	150,733	$	183,509	$	1,171,574
As Of And For The Six Months Ended		Asia		North America		Europe		Consolidated
June 30, 2012
Total sales	$	273,071	$	65,802	$	84,450	$	423,323
Inter-company sales		(40,052)		(31,045)		(48,324)		(119,421)
Net sales	$	233,019	$	34,757	$	36,126	$	303,902
Property, plant and equipment	$	168,596	$	31,127	$	27,220	$	226,943
Total assets	$	517,232	$	119,600	$	222,961	$	859,793

Schedule of Revenue by Countries [Table Text Block]

		Net Sales
		for the Three Months			Percentage of
		Ended June 30,			Net Sales
		2013		2012	2013	2012
China	$	80,049	$	51,658	37%	32%
Taiwan		39,137		31,667	18%	20%
Korea		17,434		11,632	8%	7%
Switzerland		16,763		14,549	8%	10%
Singapore		13,634		6,831	6%	4%
United States		11,819		13,377	6%	8%
U.K.		10,137		7,853	5%	5%
Germany		8,379		6,157	4%	4%
All Others (1)		17,027		15,515	8%	10%
Total	$	214,379	$	159,239	100%	100%
		Net Sales
		for the Six Months			Percentage of
		Ended June 30,			Net Sales
		2013		2012	2013	2012
China	$	138,432	$	100,810	35%	33%
Taiwan		71,411		63,448	18%	21%
Switzerland		31,750		28,062	8%	9%
United States		24,769		28,134	6%	9%
Korea		33,196		21,853	9%	7%
U.K.		18,709		12,978	5%	4%
Singapore		23,100		11,476	6%	5%
Germany		16,712		12,939	4%	4%
All Others (1)		33,264		24,202	9%	8%
Total	$	391,343	$	303,902	100%	100%