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Summary of Significant Accounting Policies - Asset acquisition (Details) - In-process research and development acquisition - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
Sep. 10, 2021 | Jun. 30, 2022
Asset Acquisition [Line Items] |  |
Asset acquisition, consideration transferred | $ 35.6 |
Issuance of common stock | 276,346 |
Fair value of common stock issued | $ 30.9 |
Cash consideration | 3.9 |
Net liabilities assumed | 0.2 |
Acquisition related costs | 0.6 |
Value of additional shares potentially issuable | $ 35.0 |
Number of additional shares potentially issuable | 269,547 |
Estimated milestone performance period |  | 24 months

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