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Financial Instruments and Risk Management (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 27, 2020
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Sep. 27, 2019
Derivative [Line Items]              
Realized gain on interest rate swaps   $ (0.2) $ 0.0 $ (0.1) $ 0.0    
Pretax losses deferred on contracts   0.6 0.0 4.2 0.0    
Deferred income taxes   0.1 $ 0.0 1.0 $ 0.0    
Interest Rate Swap              
Derivative [Line Items]              
Derivative amount   135.0   135.0     $ 150.0
Notional amount, quarterly reduction $ 7.5            
Prepaid expenses and other current assets              
Derivative [Line Items]              
Cash deposits related to commodity derivative contracts   $ 1.5   $ 1.5   $ 1.0