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Retirement Plans (Tables)
 3 Months Ended
Mar. 31, 2016
Retirement Plans  
Components of net periodic benefit cost

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

 

March 31,

(in millions)

    

2016

    

2015

 

 

 

 

 

 

 

Service cost

 

$
0.8

 

$
0.9

Interest cost

 

 
1.3

 

 
1.8

Expected return on plan assets

 

 
(2.5)

 

 
(2.6)

Amortization of unrecognized loss

 

 
0.6

 

 
1.3

Net periodic benefit cost

 

$
0.2

 

$
1.4