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Derivative Instruments and Hedging Activities Derivative instruments fair value (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Designated as Hedging Instrument [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ (0.8) $ (0.2)
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets 0.3 0.3
Derivative Liabilities 0 0
Designated as Hedging Instrument [Member] | Currency [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets 0 0.2
Derivative Liabilities (1.1) (0.7)
Not Designated as Hedging Instrument [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (0.2) 0
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets 0.3 0.1
Derivative Liabilities 0 0
Not Designated as Hedging Instrument [Member] | Currency [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets 0 0.1
Derivative Liabilities $ (0.5) $ (0.2)