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Pensions (Tables)
3 Months Ended
Jun. 30, 2020
Pensions [Abstract]  
Pension Cost
Pension cost included the following components:

 
 
Three months ended
June 30,
 
 
 
2020
   
2019
 
Service cost
 
$
0.1
   
$
0.1
 
Interest cost
   
2.0
     
2.3
 
Expected return on plan assets
   
(2.9
)
   
(3.0
)
Amortization of unrecognized net loss
   
1.7
     
1.5
 
Net periodic benefit cost
 
$
0.9
   
$
0.9