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Subsequent Event - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | Aug. 04, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Shares of common stock |  | 42,299,478 | 36,257,493
Shares of preferred stock |  | 0 | 0
Subsequent Event | Merger Agreement | Pionyr Immunotherapeutics, Inc |  |  |
Subsequent Event [Line Items] |  |  |
Net cash acquired | $ 43 |  |
Shares of common stock | 1,800,652 |  |
Conversion of preferred shares in to common shares | 1 |  |
Series A Preferred Stock | Subsequent Event | Merger Agreement | Pionyr Immunotherapeutics, Inc |  |  |
Subsequent Event [Line Items] |  |  |
Purchase price | $ 7.15 |  |
Shares of preferred stock | 4,153,439 |  |
Common Stock | Subsequent Event | Merger Agreement | Pionyr Immunotherapeutics, Inc |  |  |
Subsequent Event [Line Items] |  |  |
Purchase price | $ 7.15 |  |

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