Segment Information and Enterprise-Wide Disclosure - Schedule of Net Sales by Countries (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	$ 214,381	$ 208,888	$ 219,453	$ 206,182	$ 223,671	$ 233,777	$ 223,217	$ 209,986	$ 848,904	$ 890,651	$ 826,846
Percentage of net sales									100.00%	100.00%	100.00%
China
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 507,783	$ 555,478	$ 522,587
Percentage of net sales									60.00%	62.00%	63.00%
United States
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 76,870	$ 82,599	$ 72,232
Percentage of net sales									9.00%	9.00%	9.00%
Korea
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 66,605	$ 66,772	$ 68,693
Percentage of net sales									8.00%	7.00%	8.00%
Germany
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 57,036	$ 59,240	$ 45,631
Percentage of net sales									7.00%	7.00%	6.00%
Singapore
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 51,742	$ 49,191	$ 43,066
Percentage of net sales									6.00%	6.00%	5.00%
Taiwan, Province of China
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 30,127	$ 27,207	$ 30,233
Percentage of net sales									4.00%	3.00%	4.00%
All Others
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales									$ 58,741	$ 50,164	$ 44,404
Percentage of net sales									6.00%	6.00%	5.00%