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Goodwill (Tables)
 12 Months Ended
Mar. 31, 2022
Goodwill [Abstract]  
Changes in Carrying Amount of Goodwill
The following table presents a rollforward of the carrying value of goodwill from March 31, 2020 to March 31, 2022.  The Company has revised the March 31, 2021 and 2020 goodwill balances to be comparable with the current segment structure.

 
BHVAC
    
CIS
    
Total
  
Balance, March 31, 2020
  
$
44.7
    
$
121.4
    
$
166.1
  
Effect of exchange rate changes
    
2.3
      
2.3
      
4.6
  
Balance, March 31, 2021
    
47.0
      
123.7
      
170.7
  
Effect of exchange rate changes
    
(1.6
)
    
(1.0
)
    
(2.6
)
Balance, March 31, 2022
  
$
45.4
    
$
122.7
    
$
168.1