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Property, Plant and Equipment (Tables)
 3 Months Ended
Jun. 30, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment, including depreciable lives, consisted of the following:

 
  
June 30, 2019
    
March 31, 2019
  
Land
  
$
20.9
    
$
20.7
  
Buildings and improvements (10-40 years)
    
281.0
      
285.9
  
Machinery and equipment (3-15 years)
    
858.7
      
848.7
  
Office equipment (3-10 years)
    
93.6
      
92.0
  
Construction in progress
    
62.6
      
57.4
  
 
    
1,316.8
      
1,304.7
  
Less: accumulated depreciation
    
(837.7
)
    
(820.0
)
Net property, plant and equipment
  
$
479.1
    
$
484.7