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Financial Instruments and Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	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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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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