Segment Information and Enterprise-Wide Disclosure - Schedule of Net Sales by Countries (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 236,303	$ 222,738
Percentage of net sales		100.00%	100.00%
China
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 129,525	$ 128,882
Percentage of net sales		55.00%	58.00%
United States
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 21,199	$ 19,106
Percentage of net sales		9.00%	9.00%
Korea
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 17,559	$ 13,801
Percentage of net sales		7.00%	6.00%
Germany
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 17,423	$ 14,906
Percentage of net sales		7.00%	7.00%
Singapore
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 11,491	$ 12,079
Percentage of net sales		5.00%	5.00%
Taiwan
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 15,499	$ 13,886
Percentage of net sales		7.00%	6.00%
All Others
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	[1]	$ 23,607	$ 20,078
Percentage of net sales	[1]	10.00%	9.00%

[1] Represents countries with less than 3% of the total net sales each.