DEBT - Short-term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2025	Mar. 31, 2025
Debt Instrument [Line Items]
Total	$ 550.0	$ 1,150.0
Unamortized discount and issuance costs	(1.0)	(1.5)
Short-term debt, net	549.0	1,148.5
Significant other observable inputs (level 2)
Debt Instrument [Line Items]
Total	$ 552.0	$ 1,152.6
2025 Notes
Debt Instrument [Line Items]
Annual Interest Rate		3.55%
Total		$ 600.0
2025 Notes | Significant other observable inputs (level 2)
Debt Instrument [Line Items]
Total		$ 599.9
2026 Notes
Debt Instrument [Line Items]
Annual Interest Rate	5.00%	5.00%
Total	$ 550.0	$ 550.0
2026 Notes | Significant other observable inputs (level 2)
Debt Instrument [Line Items]
Total	$ 552.0	$ 552.7