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Preferred Stock and Stockholders' Equity (Deficit) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 11, 2018 | Dec. 31, 2022 | Dec. 31, 2021
Equity [Line Items] |  |  |
Common stock, shares authorized |  | 420,000,000 | 350,000,000
Initial Public Offering of Common Stock |  | $ 0.001 | $ 0.001
Aggregate offering price |  | $ 14,724 |
Common stock, shares outstanding |  | 240,410,761 | 216,127,443
Common Stock [Member] |  |  |
Equity [Line Items] |  |  |
Common stock, shares authorized |  | 420,000,000 |
Aggregate offering price |  | $ 24 |
Common stock, shares outstanding |  | 240,410,761 |
Common Stock, shares reserved for future issuance |  | 33,330,964 |
Securities Purchase Agreement [Member] |  |  |
Equity [Line Items] |  |  |
Aggregate offering price | $ 47,100 |  |

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