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STOCK-BASED COMPENSATION Performance targets (Details)
9 Months Ended
Dec. 31, 2018
Target 1 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award 16.35
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Target, Vesting Percentage 40.00%
Target 2 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award 20.45
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Target, Vesting Percentage 60.00%
Target 2 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award 25.30
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Target, Vesting Percentage 100.00%