Schedule II - Valuation and Qualifying Accounts - Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Valuation allowance for trade and notes receivable
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 1.8	$ 3.1	$ 1.4
Charged to Costs and Expenses	(0.4)	(0.1)	2.3
Charged to Other Accounts	0.0	0.0	0.0
Deductions	(0.2)	(1.2)	(0.6)
Balance at End of Year	1.2	1.8	3.1
Valuation allowance for income taxes
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	9.0	12.0	32.2
Charged to Costs and Expenses	0.0	0.0	0.5
Charged to Other Accounts	0.0	0.0	0.0
Deductions	(4.2)	(3.0)	(20.7)
Balance at End of Year	$ 4.8	$ 9.0	$ 12.0