Debt And Credit Facilities - Components Of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Sep. 20, 2019
Debt Instrument [Line Items]
Total debt	$ 1,387.1	$ 1,380.7
Less: current portion	(511.5)	(510.0)
Long-term debt	875.6	870.7
US term loan due 2024
Debt Instrument [Line Items]
Total debt	648.8	648.3	$ 650.0
Euro term loan due 2024
Debt Instrument [Line Items]
Total debt	226.8	222.4
Convertible Debt | Convertible Senior Notes
Debt Instrument [Line Items]
Total debt	$ 511.5	$ 510.0