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RESTRUCTURING COSTS RESTRUCTURING COSTS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges $ 4,744 $ 2,327 $ 13,490 $ 18,206  
Forecast [Member] | Minimum [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges         $ 15,000
Forecast [Member] | Maximum [Member]          
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges         $ 17,000