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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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