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Deferred Finance Costs (Tables)
12 Months Ended
Dec. 31, 2012
Deferred Finance Costs [Abstract]  
Summary of Deferred Financing Cost
                 

(in millions)

  2012     2011  

Gross cost

  $ 1.7     $ 1.7  

Accumulated amortization

    (0.4     0.0  
   

 

 

   

 

 

 
    $ 1.3     $ 1.7