Income Taxes - Summary of Federal Net Operating Loss Carryforwards and Related Deferred Income Tax Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Income Tax Contingency [Line Items]
Deferred Tax Asset	$ 114.6	$ 49.7
Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
NOL Carry-forwards	500.8
Deferred Tax Asset	114.6
operating loss carryforward, not subject to expiration	343.3
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	72.1
Internal Revenue Service (IRS) | 2027
Income Tax Contingency [Line Items]
NOL Carry-forwards	0.8
Deferred Tax Asset	0.2
Internal Revenue Service (IRS) | 2028
Income Tax Contingency [Line Items]
NOL Carry-forwards	4.4
Deferred Tax Asset	0.9
Internal Revenue Service (IRS) | 2040
Income Tax Contingency [Line Items]
NOL Carry-forwards	1.4
Deferred Tax Asset	1.4
Internal Revenue Service (IRS) | 2041
Income Tax Contingency [Line Items]
NOL Carry-forwards	4.5
Deferred Tax Asset	4.5
Internal Revenue Service (IRS) | 2042
Income Tax Contingency [Line Items]
NOL Carry-forwards	6.0
Deferred Tax Asset	6.0
Internal Revenue Service (IRS) | 2043
Income Tax Contingency [Line Items]
NOL Carry-forwards	140.4
Deferred Tax Asset	$ 29.5