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v3.23.2

Commitments and Contingencies (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Commitments and Contingencies |  |
Licensed product sales | $ 0 | $ 0
Research, Development and Commercialization Agreement | Hoffmann-La Roche ("Roche") |  |
Commitments and Contingencies |  |
Remainder of future milestone payments | $ 8 |

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