Stock-Based Compensation - Summary of Assumptions Used to Value Stock Options Granted (Detail)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate range, Minimum	3.66%	3.48%
Risk-free interest rate range, Maximum	4.46%	4.34%
Expected dividend rate	0.00%	0.00%
Expected stock price volatility range, minimum	93.70%	92.00%
Expected stock price volatility range, maximum	95.80%	94.10%
Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years) range	6 years 1 month 9 days	6 years 1 month 9 days
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years) range	5 years 2 months 23 days	5 years 2 months 1 day