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Pension Plans (Tables)
9 Months Ended
Sep. 30, 2016
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
September 30
     Nine Months Ended
September 30
 

(in millions)

   2016      2015      2016      2015  

Plan net pension credit/(charge):

           

Service cost

   $ (0.2    $ (0.5    $ (0.7    $ (1.2

Interest cost on projected benefit obligation

     (5.0      (7.0      (16.0      (20.8

Expected return on plan assets

     7.2         8.5         23.0         25.1   

Amortization of prior service credit

     0.2         0.3         0.8         0.9   

Amortization of actuarial net losses

     (0.6      (1.3      (2.0      (3.9
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 1.6       $ 0.0       $ 5.1       $ 0.1