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Pension Plans (Tables)
6 Months Ended
Jun. 30, 2013
Compensation And Retirement Disclosure [Abstract]  
Defined Benefit Pension Plan

The Plan is closed to future service accrual but has a large number of deferred and current pensioners.

 

     Three Months Ended
June 30
    Six Months Ended
June 30
 

(in millions)

         2013                 2012                 2013                 2012        

Plan net pension credit/(charge):

        

Service cost

   $ (0.4   $ (0.4   $ (0.8   $ (0.8

Interest cost on projected benefit obligation

     (7.7     (8.0     (15.6     (16.0

Expected return on plan assets

     8.7        8.5        17.7        17.0   

Amortization of prior service credit

     0.3        0.3        0.6        0.6   

Amortization of actuarial net losses

     (1.6     (0.3     (3.3     (0.6
  

 

 

   

 

 

   

 

 

   

 

 

 
   $ (0.7   $ 0.1      $ (1.4   $ 0.2