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Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Derivative [Line Items]    
Restricted cash in other current assets as collateral related to open derivative contracts $ 3.6 $ 5.3
Commodity Contract [Member]    
Derivative [Line Items]    
Deferred net gains (losses), net of tax, included in AOCI (0.4)  
Cash Flow Hedging [Member] | Commodity Contract [Member] | Long [Member]    
Derivative [Line Items]    
Open future contracts to purchase copper $ 59.4  
Time period for open copper future contract 12 months  
Fair value of future contracts with gain (loss) position $ (1.3)  
Fair Value Hedging [Member] | Commodity Contract [Member] | Short [Member]    
Derivative [Line Items]    
Fair value of future contracts with gain (loss) position 0.1  
Open future contracts to sell copper $ 3.1  
Time period for open copper future contract sales 5 months