Restructuring and Severance - Summary of Restructuring Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 10.2	$ 0.0	$ 0.1
Charges	60.5	10.8	0.0
Utilizations	(30.3)	(0.6)	(0.1)
Ending Balance	40.4	10.2	0.0
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.5	0.0	0.0
Charges	1.2	0.5	0.0
Utilizations	(0.5)	0.0	0.0
Ending Balance	1.2	0.5	0.0
Network [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	9.7	0.0	0.1
Charges	59.3	10.3	0.0
Utilizations	(29.8)	(0.6)	(0.1)
Ending Balance	$ 39.2	$ 9.7	$ 0.0