Trade and Other Receivables (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 41.4	$ 37.7
Trade and Other Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	22.4	21.8
Non-current Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 19.0	$ 15.9
Financing Receivable | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term of financing lending arrangement	1 year
Financing Receivable | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term of financing lending arrangement	4 years