Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Income tax (benefit) provision	$ 15	$ 17	$ (2,560)
Valuation allowance	126,873	120,197	109,876	$ 94,117
Decrease based on tax positions in prior period	0	0	1,101
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	300
Unrecognized Tax Benefits	4,570	4,570	$ 4,570	$ 5,237
Net Operating Loss Or Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits	3,400
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	346,600
Operating loss carryforwards, subject to expiration	248,200
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	98,400
Federal | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Research and development tax credit carryforwards	1,100
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	276,900
State and Local Jurisdiction | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Research and development tax credit carryforwards	11,200
Maximum
Operating Loss Carryforwards [Line Items]
Income tax (benefit) provision	$ (100)	$ (100)