SHORT-TERM INVESTMENTS - Short-term Investments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Cost or Amortized Cost	$ 23.5	$ 189.0
Gross Unrealized, Gains	0.0	0.0
Gross Unrealized, Losses	0.0	(2.0)
Fair Value	23.5	187.0
Bank time deposits
Debt Securities, Available-for-sale [Line Items]
Cost or Amortized Cost	20.6	41.8
Gross Unrealized, Gains	0.0	0.0
Gross Unrealized, Losses	0.0	0.0
Fair Value	20.6	41.8
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Cost or Amortized Cost	2.9	147.2
Gross Unrealized, Gains	0.0	0.0
Gross Unrealized, Losses	0.0	(2.0)
Fair Value	$ 2.9	$ 145.2