Supplementary Financial Information- Schedule of Other (Loss) Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Offsetting [Abstract]
Gain on sale of investments	$ 0.0	$ 12.0
Gain on step-up of equity method investment	0.0	3.8
Net loss on repurchase or extinguishment of debt	(0.3)	0.0
Interest income	2.6	1.3
Foreign currency translation gain (loss)	1.3	(0.4)
Other	(0.2)	0.0
Total other income, net	$ 3.4	$ 16.7