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Goodwill and Intangible Assets
 6 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets [Abstract]  
Goodwill and Intangible Assets
Note 13: Goodwill and Intangible Assets

Changes in the carrying amount of goodwill were as follows:

 
  
CIS
    
BHVAC
    
Total
  
Goodwill, March 31, 2020
  
$
152.6
    
$
13.5
    
$
166.1
  
Effect of exchange rate changes
    
2.8
      
0.5
      
3.3
  
Goodwill, September 30, 2020
  
$
155.4
    
$
14.0
    
$
169.4
  

Intangible assets consisted of the following:

  
September 30, 2020
    
March 31, 2020
  
   
Gross
Carrying
Value
    
Accumulated
Amortization
    
Net
Intangible
Assets
    
Gross
Carrying
Value
    
Accumulated
Amortization
    
Net
Intangible
Assets
  
Customer relationships
  
$
62.6
    
$
(14.9
)
  
$
47.7
    
$
60.8
    
$
(12.6
)
  
$
48.2
  
Trade names
    
59.3
      
(17.9
)
    
41.4
      
58.3
      
(16.2
)
    
42.1
  
Acquired technology
    
24.4
      
(8.9
)
    
15.5
      
23.6
      
(7.6
)
    
16.0
  
Total intangible assets
  
$
146.3
    
$
(41.7
)
  
$
104.6
    
$
142.7
    
$
(36.4
)
  
$
106.3
  

The Company recorded amortization expense of $2.1 million and $2.2 million for the three months ended September 30, 2020 and 2019, respectively. The Company recorded amortization expense of $4.2 million and $4.4 million for the six months ended September 30, 2020 and 2019, respectively.The Company estimates that it will record $4.2 million of amortization expense during the remainder of fiscal 2021 and approximately $8.0 million of annual amortization expense in fiscal 2022 through 2026.