Variable Interest Entities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Income Tax Expense (Benefit)	$ (31,700,000)	$ (1,600,000)
Other Assets	566,400,000		$ 592,200,000
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Variable Interest Entity, Funding Investment Commitment, Funding	0	48,500,000
Proceeds from Equity Method Investment, Distribution	400,000	0
Income (Loss) from Equity Method Investments	(16,700,000)	(15,400,000)
Income Tax Credits and Adjustments	3,900,000	28,400,000
Income Tax Expense (Benefit)	3,100,000	$ 200,000
Cash and Cash Equivalents, at Carrying Value	19,300,000
Property, Plant and Equipment, Net	271,100,000
Other Assets	2,900,000
Assets	293,300,000
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 22,400,000