CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (11.9)	$ (262.0)
Other comprehensive income (loss):
Foreign currency translation adjustment	82.9	(5.4)
Change in fair value of available for sale securities	0.0	0.0
Other comprehensive income (loss)	82.9	(5.4)
Comprehensive income (loss)	$ 71.0	$ (267.4)