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Income Taxes - Reconciliation of Income Tax Computed at Federal Statutory Rates to Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Tax provision at U.S. statutory rate	$ (29,022)	$ (28,190)
Stock-based compensation	1,548	1,343
Research and development tax credits	(9,526)	(3,883)
Change in valuation allowance	35,184	29,066
Section 162(m) compensation	1,773	1,594
Other	43	70
Provision for income taxes	$ 0	$ 0

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Income tax rate reconciliation section 162(m) compensation.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying statutory federal (national) tax rate to pretax income (loss) from continuing operation attributable to other reconciling item. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law.

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