SHARE-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS (Defined Benefit Plans) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Liability at the end of the year	$ 12,382	$ 8,304
Current liability	2,957	1,588
Non current liability	$ 9,425	$ 6,716

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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