Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Payables, trade and other	$ 107.0	$ 105.8
Deferred revenue	37.0	26.6
Employment costs	33.9	42.4
Current portion of pension and postretirement liabilities	7.2	7.2
Acquisition-related contingent consideration	1.1	1.5
Other	32.5	31.8
Total accounts payable and accrued expenses	$ 218.7	$ 215.3