Segment Information, Revenue and Enterprise-Wide Disclosures - Schedule of Net Sales by Direct Sales or Distributor and Location (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales		$ 301,157	$ 323,674	$ 322,006	$ 302,293	$ 314,446	$ 320,946	$ 304,085	$ 274,512	$ 1,249,130	$ 1,213,989	$ 1,054,204
Percentage of net sales										100.00%	100.00%	100.00%
Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 407,851	$ 346,997	$ 334,455
Percentage of net sales										100.00%	100.00%	100.00%
Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 841,279	$ 866,992	$ 719,749
Percentage of net sales										100.00%	100.00%	100.00%
China
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 633,799	$ 662,625	$ 593,127
Percentage of net sales										51.00%	55.00%	56.00%
China | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 228,822	$ 226,360	$ 220,390
Percentage of net sales										56.00%	65.00%	66.00%
China | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 404,977	$ 436,265	$ 372,737
Percentage of net sales										48.00%	50.00%	52.00%
United States
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 100,596	$ 120,242	$ 86,277
Percentage of net sales										8.00%	10.00%	8.00%
United States | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 10,161	$ 15,644	$ 16,522
Percentage of net sales										2.00%	5.00%	5.00%
United States | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 90,435	$ 104,598	$ 69,755
Percentage of net sales										11.00%	12.00%	10.00%
Korea
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 60,368	$ 63,960	$ 65,848
Percentage of net sales										5.00%	5.00%	6.00%
Korea | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 22,099	$ 16,562	$ 17,765
Percentage of net sales										5.00%	5.00%	5.00%
Korea | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 38,269	$ 47,398	$ 48,083
Percentage of net sales										5.00%	5.00%	7.00%
Germany
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 78,055	$ 93,714	$ 74,302
Percentage of net sales										6.00%	8.00%	7.00%
Germany | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 11,559	$ 11,770	$ 10,879
Percentage of net sales										3.00%	3.00%	3.00%
Germany | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 66,496	$ 81,944	$ 63,423
Percentage of net sales										8.00%	9.00%	9.00%
Singapore
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 67,513	$ 68,153	$ 58,570
Percentage of net sales										5.00%	6.00%	6.00%
Singapore | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 568	$ 2,150	$ 873
Percentage of net sales											1.00%
Singapore | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 66,945	$ 66,003	$ 57,697
Percentage of net sales										8.00%	8.00%	8.00%
Taiwan
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 93,501	$ 76,344	$ 67,369
Percentage of net sales										7.00%	6.00%	6.00%
Taiwan | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 2,748	$ 2,846	$ 6,327
Percentage of net sales										1.00%	1.00%	2.00%
Taiwan | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales										$ 90,753	$ 73,498	$ 61,042
Percentage of net sales										11.00%	8.00%	8.00%
All Others
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	[1]									$ 215,298	$ 128,951	$ 108,711
Percentage of net sales	[1]									18.00%	10.00%	11.00%
All Others | Direct Sales
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	[1]									$ 131,894	$ 71,665	$ 61,699
Percentage of net sales	[1]									33.00%	20.00%	19.00%
All Others | Distributor
Segment Reporting Revenue Reconciling Item [Line Items]
Net sales	[1]									$ 83,404	$ 57,286	$ 47,012
Percentage of net sales	[1]									9.00%	8.00%	6.00%

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