Net Loss per Share - Potentially Dilutive Securities Excluded from Computation of Diluted Weighted-Average Shares (Detail) - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total | 13,740,596 | 11,055,774 |
| Employee Stock Option | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total | 12,089,481 | 9,475,631 |
| ESPP [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total | 41,489 | 57,876 |
| Restricted stock units [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total | 1,609,626 | 1,522,267 |