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Derivatives (Details) (Forward Contracts [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]          
Derivative, notional amount $ 89.7   $ 89.7    
Cost of Sales [Member] | Cash Flow Hedging [Member]
         
Derivative Instruments, Gain (Loss) [Line Items]          
Derivative instruments, income statement location of gain (loss) reclassified from accumulated OCI     Cost of Goods Sold    
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net 0.5 0.5 0.7 2.6  
Cash flow hedge gain to be reclassified within twelve months         $ (0.5)