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v3.23.3

Equity Plans and Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | May 31, 2022 | Jun. 30, 2021 | Jan. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Increase in aggregate number of shares of common stock authorized for issuance |  |  |  |  |  | 15,000,000 |  |
Stock based compensation expense related to restricted stock | $ 0.7 | $ 0.2 | $ 1.8 | $ 0.6 |  |  |  |
Employee Stock Option |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Options vesting period |  |  | 7 years |  |  |  |  |
Performance Based Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted stock units awards outstanding | 557,000 |  | 557,000 |  | 193,000 |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted stock units awards outstanding | 4,302,000 |  | 4,302,000 |  | 3,479,000 |  |  |
Maximum | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  | 10 years |  |  |  |  |
Minimum | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Expiration period |  |  | 7 years |  |  |  |  |
2018 Equity Incentive Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Newly reserved shares of common stock | 9,659,145,000 |  | 9,659,145,000 |  |  |  | 3,250,000 | 1,500,000
2014 Employee Stock Purchase Plan | Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares issued to employees |  |  |  |  |  | 32,600,000 |  |
Performance Based Vesting Schedule | Performance Based Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Restricted stock units awards outstanding | 36,000 |  | 36,000 |  |  |  |  |

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