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Fair Value Measurements (Details) - Recurring - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Assets, fair value | $ 78,037 | $ 115,436
Liabilities: |  |
Liabilities, fair value | 1,091 | 698
Money market funds |  |
Assets: |  |
Assets, fair value | 50,433 | 71,175
Commercial paper |  |
Assets: |  |
Assets, fair value | 16,882 | 31,935
U.S. government-sponsored agency bonds |  |
Assets: |  |
Assets, fair value | 8,723 |
Corporate bonds |  |
Assets: |  |
Assets, fair value | 999 | 7,022
Asset-backed securities |  |
Assets: |  |
Assets, fair value | 1,000 | 5,304
Derivative liabilities for exit fees |  |
Liabilities: |  |
Liabilities, fair value | 1,091 | 698
Level 1 |  |
Assets: |  |
Assets, fair value | 50,433 | 71,175
Liabilities: |  |
Liabilities, fair value | 0 | 0
Level 1 | Money market funds |  |
Assets: |  |
Assets, fair value | 50,433 | 71,175
Level 1 | Commercial paper |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 1 | U.S. government-sponsored agency bonds |  |
Assets: |  |
Assets, fair value | 0 |
Level 1 | Corporate bonds |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 1 | Asset-backed securities |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 1 | Derivative liabilities for exit fees |  |
Liabilities: |  |
Liabilities, fair value | 0 | 0
Level 2 |  |
Assets: |  |
Assets, fair value | 27,604 | 44,261
Liabilities: |  |
Liabilities, fair value | 0 | 0
Level 2 | Money market funds |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 2 | Commercial paper |  |
Assets: |  |
Assets, fair value | 16,882 | 31,935
Level 2 | U.S. government-sponsored agency bonds |  |
Assets: |  |
Assets, fair value | 8,723 |
Level 2 | Corporate bonds |  |
Assets: |  |
Assets, fair value | 999 | 7,022
Level 2 | Asset-backed securities |  |
Assets: |  |
Assets, fair value | 1,000 | 5,304
Level 2 | Derivative liabilities for exit fees |  |
Liabilities: |  |
Liabilities, fair value | 0 | 0
Level 3 |  |
Assets: |  |
Assets, fair value | 0 | 0
Liabilities: |  |
Liabilities, fair value | 1,091 | 698
Level 3 | Money market funds |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 3 | Commercial paper |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 3 | U.S. government-sponsored agency bonds |  |
Assets: |  |
Assets, fair value | 0 |
Level 3 | Corporate bonds |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 3 | Asset-backed securities |  |
Assets: |  |
Assets, fair value | 0 | 0
Level 3 | Derivative liabilities for exit fees |  |
Liabilities: |  |
Liabilities, fair value | $ 1,091 | $ 698

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