Weighted Average Assumptions Used to Value Stock-Based Awards (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, expected dividend yield	0.00%
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)			6 years 9 months 25 days
Estimated volatility	0.00%		55.00%
Risk-free interest rate	0.00%		1.89%
Stock-based compensation, expected dividend yield	0.00%		0.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	9 months	9 months	8 months 26 days
Estimated volatility	79.00%	70.00%	56.00%
Risk-free interest rate	4.66%	5.29%	2.25%
Stock-based compensation, expected dividend yield	0.00%	0.00%	0.00%