Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Schedule Of Accounts Payble And Accrued Expenses [Line Items]
Payables, trade and other	$ 96.9	$ 105.0
Employment costs	11.9	20.0
Current portion of pension and postretirement liabilities	9.9	9.9
Acquisition-related contingent consideration	0.0	15.2
Other	18.6	22.4
Total accounts payable and accrued expenses	$ 137.3	$ 172.5