BUSINESS REORGANIZATION (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2018 USD ($) location	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Reorganization expenses incurred	$ 14,742	$ 0	$ 71,285
Number of locations reorganized | location	1
Number of locations closed | location	2
Reorganizing amounts paid	$ 3,895	5,350
Remaining accrual	72,074	$ 65,935
Accrued Liabilities
Restructuring Cost and Reserve [Line Items]
Remaining accrual	6,139
Other long-term liabilities
Restructuring Cost and Reserve [Line Items]
Remaining accrual	$ 4,708