Acquisitions (Estimated Fair Values Of Assets Acquired And Liabilities Assumed) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill	$ 179.0	$ 83.1	$ 57.1
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Current Assets	153.6
Property	5.0
Goodwill	95.6	$ 12.8	$ 20.9
Intangible assets	186.1
Other Non-current Assets	2.9
Current Liabilities	(64.4)
Total combined preliminary purchase price	$ 378.8

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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