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Property, Plant and Equipment (Tables)
 12 Months Ended
Mar. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, plant and equipment
Property, plant and equipment, including depreciable lives, consisted of the following:

  
March 31,
 
  
2015
  
2014
 
Land
 
$
8.2
  
$
10.4
 
Buildings and improvements (10-40 years)
  
221.0
   
228.1
 
Machinery and equipment (3-12 years)
  
652.0
   
715.1
 
Office equipment (3-10 years)
  
81.9
   
89.5
 
Construction in progress
  
31.7
   
35.5
 
   
994.8
   
1,078.6
 
Less: accumulated depreciation
  
(672.7
)
  
(719.0
)
Net property, plant and equipment
 
$
322.1
  
$
359.6