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Goodwill and Intangible Assets
6 Months Ended
Sep. 30, 2015
Goodwill and Intangible Assets [Abstract]  
Goodwill and Intangible Assets
Note 12: Goodwill and Intangible Assets

Changes in the carrying amount of goodwill were as follows:

  
Asia
  
Building
HVAC
  
Total
 
Goodwill, March 31, 2015
 
$
0.5
  
$
15.7
  
$
16.2
 
Effect of exchange rate changes
  
-
   
0.3
   
0.3
 
Goodwill, September 30, 2015
 
$
0.5
  
$
16.0
  
$
16.5
 

Intangible assets consisted of the following:

  
September 30, 2015
  
March 31, 2015
 
  
Gross
Carrying
Value
  
Accumulated
Amortization
  
Net
Intangible
Assets
  
Gross
Carrying
Value
  
Accumulated
Amortization
  
Net
Intangible
Assets
 
Trade names
 
$
9.2
  
$
(6.2
)
 
$
3.0
  
$
9.1
  
$
(5.8
)
 
$
3.3
 
Acquired technology
  
5.6
   
(1.2
)
  
4.4
   
5.6
   
(0.9
)
  
4.7
 
Customer relationships
  
2.1
   
(0.3
)
  
1.8
   
2.1
   
(0.2
)
  
1.9
 
Total intangible assets
 
$
16.9
  
$
(7.7
)
 
$
9.2
  
$
16.8
  
$
(6.9
)
 
$
9.9
 
 
Amortization expense for both the three months ended September 30, 2015 and 2014 was $0.4 million.  Amortization expense for both the six months ended September 30, 2015 and 2014 was $0.8 million.  Estimated future amortization expense is as follows:

Fiscal Year
 
Estimated
Amortization
Expense
 
Remainder of 2016
 
$
0.8
 
2017
  
1.6
 
2018
  
1.6
 
2019
  
1.5
 
2020
  
1.4
 
2021 & Beyond
  
2.3