INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Provisional income tax expense related to transition tax associated with deemed repatriation of foreign earnings	$ 5.6	$ 0.8
Provisional income tax benefit related to re-measurement of deferred tax assets and liabilities	4.8	87.0
State net operating loss carryforwards	19.0
Federal net operating loss carryforwards	34.0
Tax credit carryforwards	12.0
Foreign net operating loss carryforwards	45.0
One-time transition charge		$ 2.0
Foreign tax credit carryforwards	$ 4.0