Income Taxes - Schedule of Reconciliation of Income Tax (Expense) Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Expense Benefit Continuing Operations Income Tax Reconciliation [Abstract]
Income tax benefit at statutory U.S. federal rate	$ (3.6)	$ (4.3)
Income tax benefit at statutory U.S. states rate, net	(0.6)	(1.2)
Permanent differences:
Officer's life insurance		(1.7)
Valuation allowance	7.6
Other	0.2	0.6
Income tax provision (benefit)	$ 3.6	$ (6.6)