DEBT - Interest and Other, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Debt Instrument [Line Items]
Interest expense	$ 36.5	$ 34.3
2025 Notes
Debt Instrument [Line Items]
Interest expense	0.8	5.3
2026 Notes
Debt Instrument [Line Items]
Interest expense	6.9	6.9
2027 Notes
Debt Instrument [Line Items]
Interest expense	5.6	5.6
2028 Notes
Debt Instrument [Line Items]
Interest expense	9.9	9.9
2029 Notes
Debt Instrument [Line Items]
Interest expense	4.1	0.8
2032 Notes
Debt Instrument [Line Items]
Interest expense	5.0	5.0
2034 Notes
Debt Instrument [Line Items]
Interest expense	$ 4.2	$ 0.8