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Pensions (Tables)
3 Months Ended
Jun. 30, 2019
Pensions [Abstract]  
Pension Cost Pension cost included the following components:

 
 
Three months ended
June 30,
 
 
 
2019
   
2018
 
Service cost
 
$
0.1
   
$
0.1
 
Interest cost
   
2.3
     
2.4
 
Expected return on plan assets
   
(3.0
)
   
(3.0
)
Amortization of unrecognized net loss
   
1.5
     
1.4
 
Net periodic benefit cost
 
$
0.9
   
$
0.9