Trade and Other Receivables (Allowance for Expected Credit Loss) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at December 31, 2022	$ 3.3
Current period provision	3.7
Write-offs charged against the allowance	(2.1)
Balance at September 30, 2023	$ 4.9