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Deferred Finance Costs (Tables)
12 Months Ended
Dec. 31, 2014
Text Block [Abstract]  
Summary of Deferred Financing Cost

(in millions)

   2014      2013  

Gross cost

   $ 2.6       $ 2.6   

Accumulated amortization

     (1.5      (0.8
  

 

 

    

 

 

 
   $ 1.1       $ 1.8