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Commitments and Contingencies - Litigation (Details) | Apr. 08, 2021 patent | Apr. 09, 2020 patent | Sep. 05, 2018 patent | Dec. 31, 2021 inter_partes_review
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Contingencies [Line Items] |  |  |  |
Number of IPR requests denied | inter_partes_review |  |  |  | 11
Number of IPR requests granted | inter_partes_review |  |  |  | 7
Roku lawsuit |  |  |  |
Contingencies [Line Items] |  |  |  |
Number of patents allegedly infringed upon |  |  | 2 |
Roku lawsuit | Pending litigation |  |  |  |
Contingencies [Line Items] |  |  |  |
Number of patents allegedly infringed upon |  |  | 9 |
Number of patent families |  |  | 4 |
Roku, TCL, Hisense, and Funai Patent Infringement - ITC Matter | Pending litigation |  |  |  |
Contingencies [Line Items] |  |  |  |
Number of patents allegedly infringed upon |  | 5 |  |
TLC Hisense and Funai - ITC Matter | Pending litigation |  |  |  |
Contingencies [Line Items] |  |  |  |
Number of patents allegedly infringed upon |  | 6 |  |
Roku- ITC Matter | Pending litigation |  |  |  |
Contingencies [Line Items] |  |  |  |
Number of patents allegedly infringed upon | 2 |  |  |

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