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Nature of Business - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | Dec. 03, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Accumulated deficit |  | $ (186,212) | $ (96,734) |
Money market funds, amortized cost |  | 254,045 | $ 386,569 |
Cash, cash equivalents, and long term investments. |  | $ 319,100 |  |
Common stock, shares, issued |  | 35,133,934 | 34,801,537 |
Redeemable Convertible Preferred Stock [Member] |  |  |  |
Redeemable convertible preferred stock outstanding |  |  |  | 15,714,283
IPO [Member] |  |  |  |
Offering price per share | $ 21.00 |  |  |
Net proceeds after deducting underwriting discounts and commissions and offering expenses | $ 255,300 |  |  |
Common stock, shares, issued | 13,225,000 |  |  |
IPO [Member] | Common Stock [Member] |  |  |  |
Conversion of preferred stock, common shares issued | 20,758,098 |  |  |
IPO [Member] | Redeemable Convertible Preferred Stock [Member] |  |  |  |
Redeemable convertible preferred stock outstanding | 77,074,884 |  |  |

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