INCOME TAXES - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating Loss Carryforwards [Line Items]
Income resulting from tax holidays and tax incentives	$ 22.5	$ 21.2	$ 15.6
Effect on basic loss per share due to income resulting from tax holidays and tax incentives (in dollars per share)	$ 0.05	$ 0.04	$ 0.03
Effect on diluted loss per share due to income resulting from tax holidays and tax incentives (in dollars per share)	$ 0.05	$ 0.04	$ 0.03
Increase (decrease) in valuation allowance	$ 7.7
Tax effect of foreign income not repatriated to Singapore	104.5	$ 57.3	$ 27.9
Tax losses and other carryforwards	1,655.0
Valuation allowance relating to deferred tax assets	84.2
Undistributed earnings of subsidiaries	1,600.0
Unrecognized tax benefits	282.2	266.0	246.0
Unrecognized tax benefits affect annual effective tax rate if benefits eventually recognized	189.8
Interest and penalties recognized	2.1	2.1	0.9
Amount accrued for the payment of interest	16.4	14.4	12.3
Anord Mardix
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	18.6
Maximum
Operating Loss Carryforwards [Line Items]
Increase in unrecognized tax benefit	93.2
Singapore | Subsidiaries
Operating Loss Carryforwards [Line Items]
Deferred tax liability not recognized undistributed earnings of its subsidiaries	147.5
China | Subsidiaries
Operating Loss Carryforwards [Line Items]
Undistributed foreign earnings that applicable foreign withholding taxes have been provided	10.0
Deferred tax liability on undistributed foreign earnings	0.5
Valuation Allowance and Deferred Tax Assets, Profitability Forecasted
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	26.3	24.5	1.1
Valuation Allowance and Deferred Tax Assets, Current Period Losses
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	$ 38.7	$ 60.0	$ 90.2