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Share-Based Compensation - Additional Information (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jan. 31, 2022 | Jun. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 28, 2022 | Jan. 01, 2022 | Jun. 23, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued |  |  | 41,850,162 | 36,902,924 |  |  |  |
Weighted average grant date fair value |  |  | $ 22.49 | $ 11.73 | $ 1.27 |  |  |
Intrinsic value of options exercised |  |  | $ 8,500,000 | $ 5,700,000 | $ 0 |  |  |
Fair value of options vested |  |  | $ 7,400,000 | 1,300,000 | $ 300,000 |  |  |
Number of options exercised |  |  | 333,996 |  |  |  |  |
Exercised options, weighted-average exercise price |  |  | $ 2.96 |  |  |  |  |
Aggregate proceeds from exercise of options |  |  | $ 986,000 | $ 799,000 |  |  |  |
Decrease in additional paid-in capital as exercised options credited to common shares |  |  | 600,000 |  |  |  |  |
Unrecognized share-based compensation expense related to unvested stock options |  |  | $ 35,900,000 |  |  |  |  |
Unrecognized share-based compensation expense related to unvested stock options, weighted-average remaining vesting period |  |  | 2 years 1 month 6 days |  |  |  |  |
Stock options granted to employees |  |  | 1,645,416 |  |  |  |  |
Weighted average exercise price of stock options granted |  |  | $ 34.14 |  |  |  |  |
Common Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares issued, price per share |  |  |  |  |  |  |  | $ 20.00
Number of options exercised |  |  | 333,996 | 416,157 |  |  |  |
2020 Employee Share Purchase Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares of common stock reserved for future issuance |  |  |  |  |  |  | 1,104,588 |
Annual increase in number of shares available for issuance as percentage of outstanding shares common stock on final day of preceding calendar year |  | 1.00% |  |  |  |  |  |
Annual increase in number of shares available for issuance maximum number of common stock issued |  | 3,300,000 |  |  |  |  |  |
Purchase price of shares as percentage of fair market value of common stock on date of purchase |  | 85.00% |  |  |  |  |  |
Common stock shares issued |  | 0 | 9,943 |  |  |  |  |
Shares issued, price per share |  |  | $ 28.46 |  |  |  |  |
Weighted average grant date fair value |  |  | $ 10.94 |  |  |  |  |
Cash received from purchases under ESPP |  |  | $ 300,000 |  |  |  |  |
2020 Employee Share Purchase Plan | Subsequent Event |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock shares issued |  |  |  |  |  | 16,807 |  |
Shares issued, price per share |  |  |  |  |  | $ 12.71 |  |
2020 Employee Share Purchase Plan | Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares of common stock reserved for future issuance |  | 327,000 |  |  |  |  |  |
Option Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares of common stock reserved for future issuance |  | 298,605 |  |  |  |  |  |
Option Plan | Common Shares |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number of shares authorized to be issued |  |  | 4,074,135 |  |  |  |  |
2020 Equity Incentive Plan |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares of common stock reserved for future issuance |  |  |  |  |  |  | 7,893,585 |
Annual increase in number of shares available for issuance as percentage of outstanding shares common stock on final day of preceding calendar year |  |  | 5.00% |  |  |  |  |
Exercise price per share as minimum percentage of fair value of common share |  |  | 100.00% |  |  |  |  |
Expiration period |  |  | 10 years |  |  |  |  |
Monthly vesting rate |  |  | 1/36th |  |  |  |  |
2020 Equity Incentive Plan | Vesting on First Anniversary Date of Grant |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentage |  |  | 25.00% |  |  |  |  |
2020 Equity Incentive Plan | Vesting on Monthly Basis at Rate of 1/36th |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentage |  |  | 75.00% |  |  |  |  |
2020 Equity Incentive Plan | Subsequent Event |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock options granted to employees | 2,203,467 |  |  |  |  |  |  |
Weighted average exercise price of stock options granted | $ 15.63 |  |  |  |  |  |  |
2020 Equity Incentive Plan | Maximum |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares of common stock initially reserved for future issuance |  | 3,600,000 |  |  |  |  |  |
Shares of common stock reserved for future issuance |  | 3,807,448 |  |  |  |  |  |

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