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Equity Plans and Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 28, 2014 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 31, 2022 | Jun. 30, 2021 | May 31, 2021 | Jan. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Outstanding stock awards granted |  | 9,339,000 | 10,399,000 |  |  |  |  |
Total intrinsic value of options exercised |  | $ 7,700 | $ 7,900 | $ 100 |  |  |  |
Total fair value of stock options vested |  | 17,500 | 9,000 | 13,800 |  |  |  |
Share-Based Payment Arrangement, Noncash Expense |  | $ 32,915 | 21,285 | 13,484 |  |  |  |
Expected dividend yield |  | 0.00% |  |  |  |  |  |
Stock-based compensation expense |  | $ 2,774 | 3,075 | 0 |  |  |  |
Increase in aggregate number of shares of common stock authorized for issuance |  |  |  |  | 15,000,000 |  | 1,000,000 |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock based compensation expense related to restricted stock |  | 13,200 |  |  |  |  |  |
Aggregate intrinsic value |  |  |  | 37,000 |  |  |  |
Total fair value of restricted stock units |  | $ 15,700 | $ 4,700 | 4,900 |  |  |  |
Restricted stock unit awards outstanding |  | 3,479,000 | 2,651,000 |  |  |  |  |
Share vested |  | 1,195,000 |  |  |  |  |  |
Employee Stock Option |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Options vesting period |  | 7 years |  |  |  |  |  |
Performance Based Vesting Condition |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock based compensation expense related to restricted stock |  | $ 1,000 | $ 0 | $ 100 |  |  |  |
Performance Based Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock based compensation expense related to restricted stock |  | 800 | 1,800 |  |  |  |  |
Aggregate intrinsic value |  | $ 2,100 | $ 3,300 |  |  |  |  |
Restricted stock unit awards outstanding |  | 193,000 | 237,000 |  |  |  |  |
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] |  |  |  |  |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  | 15,252,440 |  |  |  | 3,250,000,000 |  | 1,500,000,000
Time Based Vesting Schedule |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total unrecognized compensation cost related to non-vested equity awards |  | $ 43,400 |  |  |  |  |  |
Total unrecognized compensation cost, weighted-average vesting period |  | 1 year 7 months 6 days |  |  |  |  |  |
Time Based Vesting Schedule | Performance Based Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total unrecognized compensation cost related to non-vested equity awards |  | $ 1,600 |  |  |  |  |  |
Performance Based Vesting Schedule | Performance Based Restricted Stock Units |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Outstanding stock awards granted |  | 31,100 |  |  |  |  |  |
Restricted stock unit awards outstanding |  | 36,000 |  |  |  |  |  |
2014 Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total unrecognized compensation cost related to non-vested equity awards |  | $ 600 |  |  |  |  |  |
Total unrecognized compensation cost, weighted-average vesting period |  | 1 year 1 month 6 days |  |  |  |  |  |
Shares issued to employees |  | 155,000 |  |  |  |  |  |
Shares remaining available for future purchases |  | 884,000 |  |  |  |  |  |
2014 Employee Stock Purchase Plan | The commencement of the offer period (generally, the sixteenth day in February or August) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Purchase price per share as percentage of fair market value of common stock | 85.00% |  |  |  |  |  |  |
2014 Employee Stock Purchase Plan | The exercise date, which is the last day of a purchase period (generally, the fifteenth day in February or August) |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Purchase price per share as percentage of fair market value of common stock | 85.00% |  |  |  |  |  |  |
2014 Employee Stock Purchase Plan | Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares remaining available for future purchases |  |  |  |  | 32,600,000 |  | 1,850,000,000 |

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