Variable Interest Entities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Income Tax Expense (Benefit)	$ (18,800,000)	$ (22,400,000)	$ (42,600,000)	$ (51,800,000)
Other Assets	503,800,000		503,800,000		$ 530,000,000.0
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Variable Interest Entity, Funding Investment Commitment, Funding	0	0	0	0
Proceeds from Equity Method Investment, Distribution	500,000	500,000	1,000,000.0	900,000
Income (Loss) from Equity Method Investments	800,000	(4,900,000)	1,500,000	(21,600,000)
Income Tax Credits and Adjustments	0	0	(100,000)	3,900,000
Income Tax Expense (Benefit)	(100,000)	$ 1,100,000	(300,000)	$ 4,200,000
Cash and Cash Equivalents, at Carrying Value	2,900,000		2,900,000		3,000,000.0
Property, Plant and Equipment, Net	257,800,000		257,800,000		261,700,000
Other Assets	6,300,000		6,300,000		5,100,000
Assets	267,000,000.0		267,000,000.0		269,700,000
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 16,800,000		$ 16,800,000		$ 16,300,000