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DEFERRED COMPENSATION (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Mar. 31, 2015
Short-term investments [Member] | Mutual Funds [Member]    
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]    
Investments $ 9.0 $ 5.5
Other long-term liabilities [Member]    
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]    
Deferred compensation liability, noncurrent $ 9.0 $ 5.5