Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Fair value of derivative liabilities	$ 14.5	$ 28.4
Long-term deferred compensation arrangements	17.6	14.8
Environmental insurance recoveries received in excess of cumulative expenses incurred	4.8	5.0
Acquisition-related contingent consideration	4.2	16.9
Other	5.6	11.4
Total other long-term liabilities	$ 46.7	$ 76.5