Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details)

v3.20.4
Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Foreign Exchange Forward [Member]    
Derivative [Line Items]    
Derivative, Notional Amount $ 395.9 $ 332.5
Foreign Exchange Option [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 0.0 17.8
Foreign Exchange Contracts [Member]    
Derivative [Line Items]    
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months 8.2  
Forward-Starting Interest Rate Swap [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 0.0  
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months (0.6)  
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense 1.4 $ (2.0)
Debentures Due 2023 [Member]    
Derivative [Line Items]    
Amount of Gain (Loss) Estimated to be Reclassified From Accumulated Other Comprehensive Loss to Cost of Sales or Interest Expense 2.5  
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net 0.7  
Commodity Contracts [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 10.0  
Cash Flow Hedge Gain (Loss) to be Reclassified Within Twelve Months 0.1  
Interest Rate Swap [Member]    
Derivative [Line Items]    
Derivative, Notional Amount $ 0.0  
Minimum [Member]    
Derivative [Line Items]    
Term of Derivative Instruments (in Months)   1 month
Maximum [Member]    
Derivative [Line Items]    
Term of Derivative Instruments (in Months)   18 months