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Contingencies and Litigation (Details)
$ in Millions
12 Months Ended
Mar. 31, 2018
USD ($)
Facility
Customer
Mar. 31, 2017
USD ($)
Customer
Mar. 31, 2016
Customer
Concentration Risk [Line Items]      
Number of major customers | Customer 2 2 2
Number of top customers | Customer 10    
U.S. [Member]      
Site Contingency [Line Items]      
Number of manufacturing facilities | Facility 2    
CADE [Member]      
Legal Matters [Abstract]      
Brazil legal matter - accrual   $ 4.7  
Litigation settlement amount $ 4.7    
Closed and Sold Manufacturing Facility [Member]      
Site Contingency [Line Items]      
Reserves for environmental matters $ 16.7 $ 16.8  
Closed and Sold Manufacturing Facility [Member] | U.S. [Member]      
Site Contingency [Line Items]      
Number of manufacturing facilities | Facility 1    
Customer Concentration Risk [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 48.00% 54.00% 63.00%
Credit Concentration Risk [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 36.00% 35.00%