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Goodwill and Intangible Assets
9 Months Ended
Dec. 31, 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:

  
Building
 
  
Asia
  
HVAC
  
Total
 
Goodwill, March 31, 2015
 
$
0.5
  
$
15.7
  
$
16.2
 
Effect of exchange rate changes
  
-
   
(0.1
)
  
(0.1
)
Goodwill, December 31, 2015
 
$
0.5
  
$
15.6
  
$
16.1
 

Intangible assets consisted of the following:

  
December 31, 2015
  
March 31, 2015
 
  
Gross
Carrying
Value
  
 
Accumulated
Amortization
  
Net
Intangible
Assets
  
Gross
Carrying
Value
  
 
Accumulated
Amortization
  
Net
Intangible
Assets
 
Trade names
 
$
8.9
  
$
(6.2
)
 
$
2.7
  
$
9.1
  
$
(5.8
)
 
$
3.3
 
Acquired technology
  
5.6
   
(1.4
)
  
4.2
   
5.6
   
(0.9
)
  
4.7
 
Customer relationships
  
2.1
   
(0.4
)
  
1.7
   
2.1
   
(0.2
)
  
1.9
 
Total intangible assets
 
$
16.6
  
$
(8.0
)
 
$
8.6
  
$
16.8
  
$
(6.9
)
 
$
9.9
 
 
Amortization expense for both the three months ended December 31, 2015 and 2014 was $0.4 million.  Amortization expense for both the nine months ended December 31, 2015 and 2014 was $1.2 million.  Estimated future amortization expense is as follows:

 
 
Fiscal Year
 
Estimated
Amortization
Expense
 
Remainder of 2016
 
$
0.4
 
2017
  
1.6
 
2018
  
1.6
 
2019
  
1.5
 
2020
  
1.4
 
2021 & Beyond
  
2.1