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Derivative Instruments and Hedging Activities (Outstanding Derivative Financial Instruments at Notional Value) (Details) - Forward Contracts [Member] - USD ($)
$ in Millions
Sep. 26, 2020
Dec. 28, 2019
Derivative [Line Items]    
Derivative Asset, Notional Amount $ 143.0 $ 137.7
Derivative Liability, Notional Amount 141.9 $ 143.5
U.S. dollars | Short [Member]    
Derivative [Line Items]    
Derivative Liability, Notional Amount 32.8  
Euro | Short [Member]    
Derivative [Line Items]    
Derivative Liability, Notional Amount 83.4  
Korea (South), Won | Long [Member]    
Derivative [Line Items]    
Derivative Asset, Notional Amount $ 58.4