Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Long-term deferred compensation arrangements	$ 12.3	$ 15.4
Fair value of derivative liabilities	3.2	0.0
Environmental insurance recoveries received in excess of cumulative expenses incurred	2.6	3.5
Acquisition-related contingent consideration	1.6	0.0
Other	7.1	6.9
Total other long-term liabilities	$ 26.8	$ 25.8