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Convertible Preferred Stock - Additional Information (Detail) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 25, 2024 USD ($) shares | Oct. 15, 2020 USD ($) $ / shares shares | Aug. 31, 2020 USD ($) $ / shares shares | Sep. 30, 2019 USD ($) $ / shares shares | Aug. 31, 2019 USD ($) $ / shares shares | Jul. 31, 2018 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2023 USD ($) Directors $ / shares | Dec. 31, 2022 USD ($) | Nov. 01, 2021 $ / shares | Aug. 01, 2020 shares
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of warrants or rights number of securities covered by warrants or rights | shares |  |  |  |  |  |  |  |  |  |  | 17,318,383
Common Stock [Member] | Subsequent event [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Temporary equity converted into permanent equity value | $ 11 |  |  |  |  |  |  |  |  |  |
Additional Paid-in Capital [Member] | Subsequent event [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Temporary equity converted into permanent equity value | $ 111,400 |  |  |  |  |  |  |  |  |  |
Series A Redeemable Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  |  |  | 10,000,000 |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  |  | $ 1 |  | $ 1 |  |  |
Temporary equity stock issuance costs |  |  |  |  |  | $ 100 |  |  |  |  |
Proceeds from redeemable convertible preferred stock |  |  |  |  |  | $ 9,900 |  |  |  |  |
Class of warrants or rights number of securities covered by warrants or rights | shares |  |  |  |  |  | 31,000,000 |  |  |  |  |
Number of directors entitled to be elected | Directors |  |  |  |  |  |  |  | 3 |  |  |
Temporary equity conversion price per share | $ / shares |  |  |  |  |  |  |  | $ 1 |  |  |
Temporary equity dividend rate |  |  |  |  |  |  |  | 6.00% | 6.00% |  |
Temporary equity, dividends, adjustment |  |  |  |  |  |  |  | $ 0 | $ 0 |  |
Series A Redeemable Convertible Preferred Stock [Member] | License Agreement With Bristol Mayers Equib Company [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  | 6,628,788 |  |  |  |  |  |  |
Series A Redeemable Convertible Preferred Stock [Member] | Achievement Of Specified Milestones [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  |  | 3,000,000 |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  | $ 1 |  |  |  |  |  |
Temporary equity stock issuance costs |  |  |  |  | $ 30 |  |  |  |  |  |
Proceeds from redeemable convertible preferred stock |  |  |  |  | $ 2,970 |  |  |  |  |  |
Series A Redeemable Convertible Preferred Stock [Member] | Upon Receipt Of Waiver Of Milestone Conditions [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  | 28,000,000 |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  | $ 1 |  |  |  |  |  |  |
Temporary equity stock issuance costs |  |  |  | $ 40 |  |  |  |  |  |  |
Proceeds from redeemable convertible preferred stock |  |  |  | $ 27,960 |  |  |  |  |  |  |
Series A One Redeemable Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  |  |  | 6,500,000 |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  |  |  |  | $ 0.885 |  |  |
Temporary equity conversion price per share | $ / shares |  |  |  |  |  |  |  | $ 0.885 |  |  |
Temporary equity dividend rate |  |  |  |  |  |  |  | 6.00% | 6.00% |  |
Temporary equity, dividends, adjustment |  |  |  |  |  |  |  | $ 0 | $ 0 |  |
Series A One Redeemable Convertible Preferred Stock [Member] | Subsequent event [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Conversion of temporary equity into permanent equity shares | shares | 47,628,788 |  |  |  |  |  |  |  |  |  |
Series A Two Redeemable Convertible Preferred Stock [Member] | Subsequent event [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Conversion of temporary equity into permanent equity shares | shares | 6,500,000 |  |  |  |  |  |  |  |  |  |
Series B Redeemable Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  | 1,822,987 | 34,636,767 |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  | $ 1.0971 | $ 1.0971 |  |  |  |  | $ 1.0971 |  |  |
Temporary equity stock issuance costs |  |  | $ 100 |  |  |  |  |  |  |  |
Proceeds from redeemable convertible preferred stock |  | $ 2,000 | $ 37,900 |  |  |  | $ 20,000 |  |  |  |
Number of directors entitled to be elected | Directors |  |  |  |  |  |  |  | 2 |  |  |
Temporary equity conversion price per share | $ / shares |  |  |  |  |  |  |  | $ 1.0971 |  |  |
Temporary equity dividend rate |  |  |  |  |  |  |  | 6.00% | 6.00% |  |
Temporary equity, dividends, adjustment |  |  |  |  |  |  |  | $ 0 | $ 0 |  |
Series B Redeemable Convertible Preferred Stock [Member] | Subsequent event [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Conversion of temporary equity into permanent equity shares | shares | 54,689,627 |  |  |  |  |  |  |  |  |  |
Series B Redeemable Convertible Preferred Stock [Member] | Achievement Of Specified Milestones [Member] |  |  |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock issued during the period new issues | shares |  |  |  |  |  |  | 18,229,873 |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  |  |  |  |  |  | $ 1.0971 |
Temporary equity stock issuance costs |  |  |  |  |  |  | $ 10 |  |  |  |

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