Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	3.30%	(0.50%)	5.70%
Effective Income Tax Rate Reconciliation, Tax Contingency, State and Local, Percent	(7.80%)	1.20%	(0.30%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.00%	0.00%	(7.10%)
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	10.10%	(0.20%)	(1.30%)
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	(93.60%)	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	2.20%	(0.60%)	2.30%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	8.10%	0.10%	0.10%
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent	0.80%	0.20%	(1.10%)
Effective Income Tax Rate Reconciliation, Percent	37.00%	21.60%	21.50%
Income tax (provision) benefit	$ 27.0	$ (7.7)	$ 21.1
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	(93.60%)	0.00%	0.00%
Uncertain tax provision
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	93.60%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	93.60%	0.00%	0.00%
Uncertain tax provision
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	(0.80%)	0.50%	2.20%
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction	(0.80%)	0.50%	2.20%