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Commitments and Contingencies (Details) $ in Millions | Nov. 02, 2020 patent | Sep. 29, 2020 patent | Jun. 11, 2020 patent | Mar. 10, 2017 patent | Jan. 02, 2021 USD ($)
--- | --- | --- | --- | --- | ---
Long-term Purchase Commitment [Line Items] |  |  |  |  |
Tariff refund | $ |  |  |  |  | $ 29.2
Other Current Assets |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |
Income taxes receivable | $ |  |  |  |  | 2.7
Government |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |
Income tax examination, liability (refund) | $ |  |  |  |  | $ (4.5)
Alphabet Inc. ("Alphabet") and Google LLC ("Google") |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |
Gain contingency, patents allegedly infringed upon, number |  | 5 |  |  |
Loss contingency, patents allegedly infringed upon, number |  |  | 5 |  |
Loss contingency, patents found not infringed upon, number | 5 |  |  |  |
Implicit, LLC |  |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |  |
Loss contingency, patents allegedly infringed upon, number |  |  |  | 2 |

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