Debt And Credit Facilities - Components Of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Sep. 20, 2019
Debt Instrument [Line Items]
Total debt	$ 1,384.6	$ 1,380.7
Less: current portion	(510.8)	(510.0)
Long-term debt	873.8	870.7
US term loan due 2024
Debt Instrument [Line Items]
Total debt	648.6	648.3	$ 650.0
Euro term loan due 2024
Debt Instrument [Line Items]
Total debt	225.2	222.4
Convertible Debt | Convertible Senior Notes
Debt Instrument [Line Items]
Total debt	$ 510.8	$ 510.0