Related Party Disclosures (Details) - Affiliated Entity $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
Reimbursement Fees and Expenses For Board Member Nominations
Related Party Transaction [Line Items]
Reimbursement fees and expenses	$ 0.2
Viex \| Immersion
Related Party Transaction [Line Items]
Percent ownership by parent	5.00%

Costs of sales and operating expenses for the period incurred from transactions with related parties.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Name:	us-gaap_CostsAndExpensesRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration