Taxes - Additional Information (Details) $ in Millions	Dec. 31, 2020 USD ($)
Federal
Income Taxes [Line Items]
Estimated operating loss carry forwards	$ 36.0
Federal | Subsidiaries
Income Taxes [Line Items]
NOL carry forwards	(0.8)
Federal | Net Operating Losses, Expiring In 2029
Income Taxes [Line Items]
NOL carry forwards	(28.0)
Federal | Net Operating Losses, Indefinite Carryforward Period
Income Taxes [Line Items]
NOL carry forwards	(7.0)
Federal | Net Operating Losses, Indefinite Carryforward Period | Subsidiaries
Income Taxes [Line Items]
NOL carry forwards	(0.6)
Federal | Net Operating Losses, Expiring In 2035 | Subsidiaries
Income Taxes [Line Items]
NOL carry forwards	(0.2)
State and Local Jurisdiction
Income Taxes [Line Items]
NOL carry forwards	$ (1,210.0)