Allowance for Credit Losses (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Credit loss estimate time period	2 years
Credit loss, excluding accrued interest, expense (reversal)	$ (7.3)	$ (2.0)	$ 24.6
Other financial assets, allowance for credit loss, excluding accrued interest	$ 1.4	$ 1.0	$ 0.9	$ 0.8