Acquisitions (Estimated Fair Values Of Assets Acquired And Liabilities Assumed) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 232.2	$ 179.0	$ 83.1
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Current Assets	28.6	153.6
Property	1.5	5.0
Goodwill	56.8	92.6	$ 12.8
Intangible assets	73.5	186.1
Other Non-current Assets		2.9
Current Liabilities	(11.1)	(64.4)
Total preliminary purchase price	$ 149.3	$ 375.8