Allowance for Credit Losses (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Receivables [Abstract]
Time period used for projecting future conditions to estimate credit losses			2 years
Provision for (release of) credit losses	$ (16.1)	$ 8.4	$ 0.7	$ 8.5
Other financial assets, allowance for credit loss	$ 1.5	$ 1.0	$ 1.5	$ 1.0	$ 1.1	$ 1.0	$ 0.9	$ 0.9