Stock-Based Compensation - Stock-based Compensation Expense included in Accompanying Statements of Operations and Comprehensive Loss (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation | $ 2,371 | $ 995 | $ 6,824 | $ 2,817 |
| Research and Development [Member] | ||||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation | 1,076 | 329 | 2,980 | 863 |
| General and Administrative [Member] | ||||
| Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation | $ 1,295 | $ 666 | $ 3,844 | $ 1,954 |