Equity Incentive Plans - Summary of Share-based Compensation Arrangements by Share-based Payment Award (Detail) - Two Thousand And Seventeen Equity Incentive Plan [Member] - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Number of shares, beginning balance | 75,083,464 | 69,990,959 | ||
| Number of shares, granted | 19,480,375 | 13,940,467 | ||
| Number of shares, exercised | (8,210,529) | (3,263,193) | ||
| Number of shares, forfeited | (6,708,760) | (5,584,769) | ||
| Number of shares, ending balance | 79,644,550 | 75,083,464 | ||
| Number of shares, Exercisable | 50,613,778 | |||
| Weighted average exercise price, beginning balance | $ 0.88 | $ 0.80 | ||
| Weighted average exercise price, granted | 3.67 | 1.44 | ||
| Weighted average exercise price, exercised | 0.95 | 0.89 | ||
| Weighted average exercise price, forfeited | 2.28 | 1.20 | ||
| Weighted average exercise price, ending balance | 1.44 | $ 0.88 | ||
| Weighted average exercise price, Exercisable | $ 0.95 | |||
| Weighted average remaining contractual term (in years), Exercisable | 6 years 11 months 4 days | |||
| Aggregate Intrinsic value, Exercisable | [1] | $ 521,957 | ||
| ||||
| X | ||||||||||
- Definition Share based compensation by share based arrangement non vested options outstanding wieghted average exercise price. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|