Income Taxes - Net operating loss carryforwards and Tax Act (Details) $ in Millions	Dec. 31, 2023 USD ($)
Federal
Net operating loss carryforwards
Net operating loss carryforwards	$ 96.2
Net operating loss carryforwards, which will expire if not utilized	55.8
Net operating loss carryforwards, which will carryover indefinitely	40.5
Net operating loss carryforwards, subject to expiration per IRC Section 382	43.8
Net operating loss carryforwards (tax effected), subject to expiration per IRC Section 382	9.2
State
Net operating loss carryforwards
Net operating loss carryforwards	48.7
Net operating loss carryforwards, which will expire if not utilized	45.9
Net operating loss carryforwards, which will carryover indefinitely	$ 2.8