Segment Information and Enterprise-Wide Disclosure - Schedule of Revenues from External Customers and Long Lived Assets by Geographical Areas (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Revenue Reconciling Item [Line Items]
Total sales	$ 286,642	$ 272,981	$ 554,340	$ 502,226
Inter-company sales	(63,425)	(58,602)	(121,137)	(110,883)
NET SALES	223,217	214,379	433,203	391,343
PROPERTY, PLANT AND EQUIPMENT, net	312,542	331,287	312,542	331,287	322,013
Total assets	1,185,735	1,171,574	1,185,735	1,171,574	1,162,258
Asia
Segment Reporting Revenue Reconciling Item [Line Items]
Total sales	200,955	195,735	390,322	352,535
Inter-company sales	(25,518)	(18,873)	(48,802)	(34,896)
NET SALES	175,437	176,862	341,520	317,639
PROPERTY, PLANT AND EQUIPMENT, net	262,186	277,608	262,186	277,608
Total assets	866,715	837,332	866,715	837,332
North America
Segment Reporting Revenue Reconciling Item [Line Items]
Total sales	38,304	37,253	75,089	72,061
Inter-company sales	(15,650)	(18,657)	(30,387)	(35,424)
NET SALES	22,654	18,596	44,702	36,637
PROPERTY, PLANT AND EQUIPMENT, net	28,016	30,579	28,016	30,579
Total assets	130,085	150,733	130,085	150,733
Europe
Segment Reporting Revenue Reconciling Item [Line Items]
Total sales	47,383	39,993	88,929	77,630
Inter-company sales	(22,257)	(21,072)	(41,948)	(40,563)
NET SALES	25,126	18,921	46,981	37,067
PROPERTY, PLANT AND EQUIPMENT, net	22,340	23,100	22,340	23,100
Total assets	$ 188,935	$ 183,509	$ 188,935	$ 183,509