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Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets |  |
Assets, fair value | $ 233,818 | $ 181,470
Liabilities |  |
Liabilities, fair value | 0 | 675
Money market funds |  |
Assets |  |
Assets, fair value | 48,650 | 18,641
U.S. government-sponsored agency bonds |  |
Assets |  |
Assets, fair value | 45,962 | 102,093
U.S. treasury securities |  |
Assets |  |
Assets, fair value | 79,773 | 2,457
Commercial paper |  |
Assets |  |
Assets, fair value | 37,065 | 49,654
Corporate bonds |  |
Assets |  |
Assets, fair value | 17,413 | 0
Asset-backed securities |  |
Assets |  |
Assets, fair value | 2,985 | 8,625
Yankee bonds |  |
Assets |  |
Assets, fair value | 1,970 | 0
Derivative liabilities for exit fee |  |
Liabilities |  |
Liabilities, fair value | 0 | 675
Level 1 |  |
Assets |  |
Assets, fair value | 48,650 | 18,641
Liabilities |  |
Liabilities, fair value | 0 | 0
Level 1 | Money market funds |  |
Assets |  |
Assets, fair value | 48,650 | 18,641
Level 1 | U.S. government-sponsored agency bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | U.S. treasury securities |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | Commercial paper |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | Corporate bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | Asset-backed securities |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | Yankee bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 1 | Derivative liabilities for exit fee |  |
Liabilities |  |
Liabilities, fair value | 0 | 0
Level 2 |  |
Assets |  |
Assets, fair value | 185,168 | 162,829
Liabilities |  |
Liabilities, fair value | 0 | 0
Level 2 | Money market funds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 2 | U.S. government-sponsored agency bonds |  |
Assets |  |
Assets, fair value | 45,962 | 102,093
Level 2 | U.S. treasury securities |  |
Assets |  |
Assets, fair value | 79,773 | 2,457
Level 2 | Commercial paper |  |
Assets |  |
Assets, fair value | 37,065 | 49,654
Level 2 | Corporate bonds |  |
Assets |  |
Assets, fair value | 17,413 | 0
Level 2 | Asset-backed securities |  |
Assets |  |
Assets, fair value | 2,985 | 8,625
Level 2 | Yankee bonds |  |
Assets |  |
Assets, fair value | 1,970 | 0
Level 2 | Derivative liabilities for exit fee |  |
Liabilities |  |
Liabilities, fair value | 0 | 0
Level 3 |  |
Assets |  |
Assets, fair value | 0 | 0
Liabilities |  |
Liabilities, fair value | 0 | 675
Level 3 | Money market funds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | U.S. government-sponsored agency bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | U.S. treasury securities |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | Commercial paper |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | Corporate bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | Asset-backed securities |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | Yankee bonds |  |
Assets |  |
Assets, fair value | 0 | 0
Level 3 | Derivative liabilities for exit fee |  |
Liabilities |  |
Liabilities, fair value | $ 0 | $ 675

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