CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (125.2)	$ (91.6)	$ (752.7)	$ (841.2)
Other comprehensive (loss) income:
Foreign currency translation adjustment	(104.3)	66.3	(38.1)	29.2
Change in fair value of available for sale securities	0.0	0.1	0.0	1.4
Other comprehensive (loss) income	(104.3)	66.4	(38.1)	30.6
Comprehensive loss	$ (229.5)	$ (25.2)	$ (790.8)	$ (810.6)