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Derivatives And Hedging Activities Notional Amount of Forward Contracts (Details) - Forward Foreign Currency Exchange Contract [Member] - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Derivative [Line Items]    
Notional amount of derivative contracts $ 90.0 $ 26.7
Derivatives related to tobacco purchases [Member]    
Derivative [Line Items]    
Notional amount of derivative contracts 71.9 19.4
Derivatives related to processing costs [Member]    
Derivative [Line Items]    
Notional amount of derivative contracts $ 18.1 $ 7.3