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The Company and Basis of Presentation - Narrative (Details)	12 Months Ended
	Dec. 31, 2020 Patent business segment $ / shares	Jun. 02, 2020 $ / shares	Dec. 31, 2019 $ / shares
Organization Consolidation And Presentation [Line Items]
Effective date of merger	Jun. 01, 2020
Common stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001	$ 0.001
Number of principal segment | segment	2
Perceive Corporation
Organization Consolidation And Presentation [Line Items]
Ownership interest, percentage	81.00%
Product Business And Intellectual Property Licensing Business
Organization Consolidation And Presentation [Line Items]
Number of principal segment | business	2
Minimum
Organization Consolidation And Presentation [Line Items]
Number of patents and applications | Patent	11,000

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