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Fair Value Measurements - Level of the fair value hierarchy (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Fair Value Measurements |  |
Total fair value of financial assets | $ 219,563 | $ 83,744
Money market funds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 25,592 | 18,994
Commercial paper |  |
Fair Value Measurements |  |
Total fair value of financial assets | 9,975 |
Cash equivalents |  |
Fair Value Measurements |  |
Total fair value of financial assets | 35,567 | 18,994
U.S. government bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 43,269 | 11,763
U.S. government agency bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 33,846 | 1,794
Corporate debt securities |  |
Fair Value Measurements |  |
Total fair value of financial assets | 106,881 | 51,193
Short-term investments |  |
Fair Value Measurements |  |
Total fair value of financial assets | 183,996 | 64,750
Level 1 |  |
Fair Value Measurements |  |
Total fair value of financial assets | 68,861 | 30,757
Level 2 |  |
Fair Value Measurements |  |
Total fair value of financial assets | 150,702 | 52,987
Recurring | Money market funds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 25,592 | 18,994
Recurring | Commercial paper |  |
Fair Value Measurements |  |
Total fair value of financial assets | 9,975 |
Recurring | Cash equivalents |  |
Fair Value Measurements |  |
Total fair value of financial assets | 35,567 | 18,994
Recurring | U.S. government bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 43,269 | 11,763
Recurring | U.S. government agency bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 33,846 | 1,794
Recurring | Corporate debt securities |  |
Fair Value Measurements |  |
Total fair value of financial assets | 106,881 | 51,193
Recurring | Short-term investments |  |
Fair Value Measurements |  |
Total fair value of financial assets | 183,996 | 64,750
Recurring | Level 1 | Money market funds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 25,592 | 18,994
Recurring | Level 1 | Cash equivalents |  |
Fair Value Measurements |  |
Total fair value of financial assets | 25,592 | 18,994
Recurring | Level 1 | U.S. government bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 43,269 | 11,763
Recurring | Level 1 | Short-term investments |  |
Fair Value Measurements |  |
Total fair value of financial assets | 43,269 | 11,763
Recurring | Level 2 | Commercial paper |  |
Fair Value Measurements |  |
Total fair value of financial assets | 9,975 |
Recurring | Level 2 | Cash equivalents |  |
Fair Value Measurements |  |
Total fair value of financial assets | 9,975 |
Recurring | Level 2 | U.S. government agency bonds |  |
Fair Value Measurements |  |
Total fair value of financial assets | 33,846 | 1,794
Recurring | Level 2 | Corporate debt securities |  |
Fair Value Measurements |  |
Total fair value of financial assets | 106,881 | 51,193
Recurring | Level 2 | Short-term investments |  |
Fair Value Measurements |  |
Total fair value of financial assets | $ 140,727 | $ 52,987

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