v3.25.2
Stock-Based Compensation and Employee Stock Purchase Program - Summary of Activity Under Stock Incentive Plans (Detail)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
shares
Share-Based Payment Arrangement [Abstract]  
Shares Subject to Outstanding, Beginning Balance 205,475
Shares Subject to Outstanding, Options Granted 25,000
Shares Subject to Outstanding, Options Expired (16,525)
Shares Subject to Outstanding, Ending Balance 213,950
Shares Subject to Outstanding, Vested and expected to vest 201,153
Shares Subject to Outstanding, Exercisable 27,818
Weighted-Average Exercise Price Per Share, Outstanding Beginning Balance | $ / shares $ 21.00
Weighted-Average Exercise Price Per Share, Options granted | $ / shares 3.88
Weighted-Average Exercise Price Per Share, Options expired | $ / shares 92.85
Weighted Average Exercise Price Per Share, Outstanding Ending Balance | $ / shares $ 13.05
Aggregate Intrinsic Value, Beginning Balance | $ $ 516,378
Aggregate Intrinsic Value, Options Granted | $ 0
Aggregate Intrinsic Value, Options Expired | $ 0
Aggregate Intrinsic Value, Ending Balance | $ 261,550
Aggregate Intrinsic Value, Exercisable | $ $ 0