Provision for Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Provision for Income Taxes
Income tax expense (benefit)	$ 19.8	$ 29.9
Effective tax rates (as a percent)	27.70%	28.00%
Unrecognized tax benefits, excluding penalties and interest	$ 60.2		$ 58.5
Accrued interest and penalties related to uncertain tax positions	6.9		$ 5.8
Penalties and interest (benefit) expense relating to unrecognized tax benefits	$ 1.2	$ 0.5
Statutory tax rate (as a percent)	21.00%
Change in tax rate - foreign jurisdictions (as a percent)	4.30%
Germany
Provision for Income Taxes
Statutory tax rate (as a percent)	30.00%
Switzerland
Provision for Income Taxes
Statutory tax rate (as a percent)	20.00%