Restructuring Activities - Total Costs Incurred and Expected to be Incurred (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Incurred cost	$ 1.8	$ 1.7	$ 9.4	$ 33.0
Severance related personnel costs
Restructuring Cost and Reserve [Line Items]
Incurred cost	0.0	0.0	0.0	8.9
Lease termination costs
Restructuring Cost and Reserve [Line Items]
Incurred cost	1.7	1.7	7.5	18.8
Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Incurred cost	$ 0.1	$ 0.0	$ 1.9	$ 5.3