v3.25.2
Stock-Based Compensation - Summary of Stock Option Activity (Detail) - Employee Stock Option
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Beginning balance, Outstanding Stock Options | shares 13,927  
Granted, outstanding stock options | shares 13,162  
Exercised, Outstanding Stock Options | shares 0  
Canceled and forfeited, Outstanding Stock Options | shares (3,443)  
Expired, Outstanding Stock Options | shares (197)  
Ending balance, Outstanding Stock Options | shares 23,449 13,927
Exercisable, Outstanding Stock Options | shares 7,218  
Weighted-Average Exercise Price Per Share, Outstanding, beginning of period | $ / shares $ 9.2  
Weighted-Average Exercise Price Per Share, Granted | $ / shares 1.63  
Weighted-Average Exercise Price Per Share, Exercised | $ / shares 0  
Weighted-Average Exercise Price Per Share, Canceled and forfeited | $ / shares 8.44  
Weighted-Average Exercise Price Per Share, Expired | $ / shares 5.74  
Weighted-Average Exercise Price Per Share, Outstanding, end of period | $ / shares 5.07 $ 9.2
Weighted-Average Exercise Price Per Share, Exercisable | $ / shares $ 7.69  
Weighted-Average Remaining Contractual Term, Outstanding (Years)   7 years 9 months 18 days
Weighted-Average Remaining Contractual Term, Vested 8 years 8 months 12 days  
Weighted-Average Remaining Contractual Term, Exercisable 7 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding | $   $ 44,953
Aggregate Intrinsic Value, Vested | $ $ 0  
Aggregate Intrinsic Value, Exercisable | $ $ 0