Financial Instruments and Contingent Consideration (Schedule of Changes in Fair Value of the Acquisition Related Contingent Consideration Liability) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Business Combinations [Abstract]
Fair value of contingent consideration as of beginning of period	$ 2.0	$ 0.0	$ 1.6	$ 15.2
Cash consideration paid	0.0	0.0	0.0	(15.2)
Loss related to change in fair value of contingent consideration	0.2	0.0	0.6	0.0
Acquisition date fair value of contingent consideration	0.0	0.8	0.0	0.8
Fair value of contingent consideration as of end of period	$ 2.2	$ 0.8	$ 2.2	$ 0.8
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability