DEBT - Interest and Other, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Interest expense	$ 34.3	$ 34.5
2024 Notes
Debt Instrument [Line Items]
Interest expense	0.0	6.5
2025 Notes
Debt Instrument [Line Items]
Interest expense	5.3	5.3
2026 Notes
Debt Instrument [Line Items]
Interest expense	6.9	5.3
2027 Notes
Debt Instrument [Line Items]
Interest expense	5.6	5.6
2028 Notes
Debt Instrument [Line Items]
Interest expense	9.9	5.3
2029 Notes
Debt Instrument [Line Items]
Interest expense	0.8	0.0
2032 Notes
Debt Instrument [Line Items]
Interest expense	5.0	5.0
2034 Notes
Debt Instrument [Line Items]
Interest expense	0.8	0.0
Term Loan
Debt Instrument [Line Items]
Interest expense	$ 0.0	$ 1.5