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Derivative Financial Instruments and Fair Value Measurements (Narrative) (Details)
$ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jul. 03, 2021
USD ($)
Jun. 27, 2020
MXN ($)
Jul. 03, 2021
USD ($)
Jun. 27, 2020
MXN ($)
Jan. 02, 2021
USD ($)
Sep. 26, 2020
USD ($)
Forward foreign currency contracts [Member]            
Derivative [Line Items]            
Derivative notional amount   $ 11.5   $ 11.5    
Realized gain on derivative contracts   $ 0.2   $ 0.2    
Not designated as hedging instruments [Member] | Foreign currency put and call option contracts (a zero-cost collar) [Member]            
Derivative [Line Items]            
Derivative notional amount $ 1.1   $ 1.1     $ 11.8
Collar ceiling rate of Mexican pesos to US dollar 24.00   24.00      
Floor rate of Mexican pesos to US dollar 21.14   21.14      
Unrealized gains included in other current assets $ 0.1   $ 0.1   $ 0.8  
Unrealized gain (loss) on derivative contracts (0.3)   (0.7)      
Derivative instruments gain (loss) recognized in income net $ 0.3   $ 0.5