Fair Value Disclosure Fair Value Disclosure - Amounts Recorded on Balance Sheet Related to Cumulative Basis Adjustments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Expense, Operating and Nonoperating	$ (391.5)	$ (341.0)	$ (263.4)
Other Nonoperating Income (Expense)	(0.4)	(9.5)	(9.4)
Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Expense, Operating and Nonoperating	1.1	1.6	1.6
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Nonoperating Income (Expense)	(0.3)	3.7	$ (3.7)
Recourse Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)	1.4	4.0
Carrying Amount of the Hedged Assets/(Liabilities)	$ 49.7	$ 198.9