Restructuring - Summary of Activity Relating to Restructuring Plan Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	18 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2024	Mar. 31, 2024
2024 Plan
Restructuring Cost and Reserve [Line Items]
Beginning balance
Restructuring costs	6.8		$ 6.8
Costs paid or otherwise settled	(0.6)
Ending balance	6.2		6.2
2022 Plan
Restructuring Cost and Reserve [Line Items]
Beginning balance	0.1	1.2	$ 1.2
Restructuring costs	0.0	0.1		7.4
Costs paid or otherwise settled	$ (0.1)	(1.2)
Ending balance		$ 0.1		$ 0.1