Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Accounts Payble And Accrued Expenses [Line Items]
Payables, trade and other	$ 91.0	$ 105.0
Employment costs	33.6	20.0
Current portion of pension and postretirement liabilities	8.0	9.9
Acquisition-related contingent consideration	0.0	15.2
Other	27.3	22.4
Total accounts payable and accrued expenses	$ 159.9	$ 172.5