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Fair Value - Summary of the Company's Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair value |  |
Debt securities | $ 354,089 |
Recurring Basis |  |
Fair value |  |
Cash equivalents | 34,316 | $ 19,857
Assets, Total | 388,405 | 465,639
Recurring Basis | Level 1 |  |
Fair value |  |
Cash equivalents | 34,316 | 19,857
Assets, Total | 215,357 | 188,496
Recurring Basis | Level 2 |  |
Fair value |  |
Assets, Total | 173,048 | 277,143
U.S. government and agency debt securities | Recurring Basis |  |
Fair value |  |
Debt securities | 218,869 | 202,050
U.S. government and agency debt securities | Recurring Basis | Level 1 |  |
Fair value |  |
Debt securities | 181,041 | 168,639
U.S. government and agency debt securities | Recurring Basis | Level 2 |  |
Fair value |  |
Debt securities | 37,828 | 33,411
Corporate debt securities | Recurring Basis |  |
Fair value |  |
Debt securities | 131,224 | 204,943
Corporate debt securities | Recurring Basis | Level 2 |  |
Fair value |  |
Debt securities | 131,224 | 204,943
Non-U.S. government debt securities | Recurring Basis |  |
Fair value |  |
Debt securities | 3,996 | 38,789
Non-U.S. government debt securities | Recurring Basis | Level 2 |  |
Fair value |  |
Debt securities | $ 3,996 | $ 38,789

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