Income Taxes - Rate Reconciliation of U.S. Statutory Income Tax Rate to Company's Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal income tax effect	0.00%	7.90%	6.80%
Federal research and development credits	2.20%	6.10%	4.60%
Change in valuation allowance	(23.20%)	(33.00%)	(28.60%)
Stock-based compensation	3.00%	0.30%	(1.50%)
Excess tax benefits on share-based payments	(0.03)
Disallowed Expenditures		(2.30%)	(2.30%)
Other	0.00%
Total	0.00%	0.00%	0.00%
Federal statutory income tax rate	$ (65,384)
State income taxes, net of federal income tax effect	(99)
Research and development tax credits	(6,982)
Changes in valuation allowances	72,265
Excess tax benefits on share-based payments	9,485
Stock-based compensation	(9,407)
Other	122
Total loss before income taxes	$ 0