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Derivatives And Hedging Activities Notional Amount of Forward Contracts (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Sep. 30, 2016
Forward Foreign Currency Exchange Contract [Member]    
Derivative [Line Items]    
Notional amount of derivative contracts $ 26.7 $ 12.4
Forward contracts related to tobacco purchase | Derivatives Designated As Hedges [Member]    
Derivative [Line Items]    
Notional amount of derivative contracts 19.4 9.7
Forward contracts related to tobacco processing costs | Derivatives Not Designated As Hedges [Member]    
Derivative [Line Items]    
Notional amount of derivative contracts $ 7.3 $ 2.7