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Financial Instruments and Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions | 9 Months Ended |
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Oct. 01, 2021 | Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative instruments net loss to be reclassified to net income during next twelve months | $ 3.4 |
Accrued expenses and other current liabilities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Contingent consideration liability, current | 1.0 | $ 1.7
Other long-term liabilities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Contingent consideration liability, noncurrent | $ 1.3 | $ 2.2
Chinese Venture Capital Fund |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity method investment ownership | 6.60% |

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