Variable Interest Entities (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Income Tax Expense (Benefit)	$ (13,400,000)	$ (54,500,000)	$ (68,100,000)	$ (83,200,000)
Other Assets	544,800,000		544,800,000		$ 592,200,000
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Variable Interest Entity, Funding Investment Commitment, Funding	0	31,500,000	0	80,000,000.0
Proceeds from Equity Method Investment, Distribution	600,000	200,000	1,500,000	200,000
Income (Loss) from Equity Method Investments	400,000	(23,800,000)	(21,200,000)	(46,900,000)
Income Tax Credits and Adjustments	0	28,700,000	3,900,000	64,800,000
Income Tax Expense (Benefit)	(100,000)	$ 1,900,000	4,100,000	$ 3,000,000.0
Cash and Cash Equivalents, at Carrying Value	2,800,000		2,800,000		21,500,000
Property, Plant and Equipment, Net	265,800,000		265,800,000		310,500,000
Other Assets	4,400,000		4,400,000		3,000,000.0
Assets	272,900,000		272,900,000		335,000,000.0
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 16,900,000		$ 16,900,000		$ 39,600,000