v3.26.3
Stockholders' Equity - Fair Value of Options Granted Under Equity Incentive Plan and Shares Subject to Employee Stock Purchase Plan Valuation Assumptions (Detail) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Average risk-free interest rate 4.18% 3.84% 4.18% 3.84%
Expected dividend yield 0.00% 0.00% 0.00% 0.00%
Expected life 6 months 6 months 6 months 6 months
Expected volatility 56.00% 52.00% 56.00% 52.00%
Weighted average fair value $ 3.83 $ 2.9 $ 3.83 $ 2.9
Equity Incentive Plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Average risk-free interest rate       3.91%
Expected dividend yield       0.00%
Expected life       4 years 6 months
Expected volatility       36.00%
Weighted average fair value       $ 3.38