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Derivative Instruments - Effect of Cash Flow Hedges on Statement of Income (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Gain (loss) on cash flow hedging relationships $ 0.0 $ 0.0
Commodity contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Gain (loss) on cash flow hedging relationships (0.2) (0.7)
Derivatives designated as hedging instruments: | Commodity contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Gain (loss) on cash flow hedging relationships 0.2 0.7
Cost of sales | Commodity contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 0.2 $ 0.6
Cash flow hedges to be reclassified into cost of goods sold over the next 12 months 0.0  
Cost of sales | Derivatives designated as hedging instruments: | Commodity contracts    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Component of the derivative instruments’ gains or losses was excluded from the assessment of hedge effectiveness $ 0.0