Segment Information and Enterprise-Wide Disclosure - Schedule of Net Sales by Countries (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 250,694	$ 208,888	$ 710,077	$ 634,522
Percentage of net sales		100.00%	100.00%	100.00%	100.00%
China
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 148,567	$ 126,268	$ 411,512	$ 378,251
Percentage of net sales		59.00%	60.00%	58.00%	60.00%
United States
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 21,802	$ 17,905	$ 62,460	$ 59,531
Percentage of net sales		9.00%	9.00%	9.00%	9.00%
Korea
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 15,993	$ 16,210	$ 43,452	$ 51,457
Percentage of net sales		6.00%	8.00%	6.00%	8.00%
Germany
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 14,737	$ 13,467	$ 47,963	$ 45,003
Percentage of net sales		6.00%	6.00%	7.00%	7.00%
Singapore
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 12,497	$ 11,009	$ 35,657	$ 38,699
Percentage of net sales		5.00%	5.00%	5.00%	6.00%
Taiwan
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 12,424	$ 7,013	$ 44,413	$ 18,424
Percentage of net sales		5.00%	3.00%	6.00%	3.00%
All Others
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	[1]	$ 24,674	$ 17,016	$ 64,620	$ 43,157
Percentage of net sales	[1]	10.00%	9.00%	9.00%	7.00%

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