Supplemental Financial Data - Allowance for Credit Risks (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 14.3	$ 16.5	$ 11.4
Additions charged to costs and expenses	12.6	5.4	12.3
Write-offs	(8.3)	(9.3)	(8.3)
Recoveries	1.5	2.2	1.4
Other		(0.5)	(0.3)
Balance at end of period	$ 20.1	$ 14.3	$ 16.5