RESTRUCTURING CHARGES - Narrative (Details) - position	12 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Fiscal 2019
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated	80
Fiscal 2018
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated		210

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration