Related Party Transactions - Schedule of Net Sales and Purchases of Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
LSE, its Subsidiaries and Affiliates
Related Party Transaction [Line Items]
Net sales from related parties	$ 912	$ 1,179	$ 1,406
Purchases from related parties	13,799	21,126	24,313
Keylink
Related Party Transaction [Line Items]
Net sales from related parties	15,543	12,227	8,856
Purchases from related parties	2,399	3,581	3,827
Nuvoton
Related Party Transaction [Line Items]
Purchases from related parties	7,719	11,152	11,407
JCP
Related Party Transaction [Line Items]
Purchases from related parties	$ 625	$ 600	$ 1,105

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration