Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Examination [Line Items]
Capitalized research and development	$ 51,159,000	$ 26,199,000
Increase (decrease) in valuation allowance on deferred tax assets	68,300,000	52,900,000
Penalties or interest accrued on income taxes	0	0
Tax Year 2028 | Capital Loss Carryforward
Income Tax Examination [Line Items]
Tax credit carryforwards	52,500,000
Federal and State
Income Tax Examination [Line Items]
Tax credit carryforwards	24,200,000	15,800,000
Federal
Income Tax Examination [Line Items]
Operating loss carryforwards not subject to expiration	455,200,000	$ 383,300,000
State
Income Tax Examination [Line Items]
Operating loss carryforwards subject to expiration	$ 537,200,000