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Derivative Instruments and Risk Management (Tables)
6 Months Ended
Jun. 30, 2012
Derivative Instruments and Risk Management [Abstract]  
Summary of commodity swaps
                                 
    June 30, 2012     December 31, 2011  

(in millions)

  Carrying
Amount
    Fair
Value
    Carrying
Amount
    Fair
Value
 

Notional quantity – 2,075 tonnes

                  $ 0.2     $ 0.2  

Notional quantity – 525 tonnes

  $ (0.1   $ (0.1                
Summary of impact on the income statement of derivatives designated as hedging instruments
                     

(in millions)

  Gain/(Loss)
Recognized in
OCI on
Derivative
   

Location of Gain/(Loss)
Reclassified from
Accumulated OCI into
Income

  Amount of Gain/(Loss)
Reclassified from
Accumulated OCI into
Income
 

Commodity contracts

  $ 0.1     Cost of goods sold   $ 0.3  

Taxation

    0.0    

Income taxes

    (0.1
   

 

 

       

 

 

 
    $ 0.1         $ 0.2  
   

 

 

       

 

 

 
Summary of foreign currency forward exchange contracts which have not been designated as hedging instruments and their impact on the income statement
             

(in millions)

 

Location of Gain/(Loss)
Recognized in Income

  Amount of Gain/(Loss)
Recognized in Income
 

Foreign currency forward exchange contracts

  Other income/(expense)   $ 1.2