XML 57 R80.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
COMMITMENTS AND CONTINGENCIES - Environmental Contingencies, Other Purchase Obligations and Other Matters (Details)
6 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
Facility
Mar. 31, 2019
USD ($)
Jan. 08, 2019
USD ($)
Other Commitments [Line Items]      
Number of former waste disposal facilities | Facility 3    
Other Commitments      
Other Commitments [Line Items]      
Purchase obligations $ 28,300,000    
Sikorsky Lawsuit [Member]      
Other Commitments [Line Items]      
Deposits Assets     $ 11,700,000
Huntington Lawsuit [Member]      
Other Commitments [Line Items]      
Loss Contingency, Damages Sought, Value   $ 2,500,000  
Counterclaim, Damages Sought, Value $ 100,000