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Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Assets: |  |
Total available for sale investments | $ 44,629 | $ 53,168
Recurring basis |  |
Assets: |  |
Total included in cash and cash equivalents | 12,889 | 21,606
Total available for sale investments | 44,629 | 53,168
Total assets measured at fair value on a recurring basis | 57,518 | 74,774
Recurring basis | Certificate of deposit |  |
Assets: |  |
Total available for sale investments | 334 | 8,333
Recurring basis | Corporate debt securities |  |
Assets: |  |
Total available for sale investments | 25,091 | 19,373
Recurring basis | Commercial paper |  |
Assets: |  |
Total available for sale investments | 310 | 6,202
Recurring basis | U.S. government agencies |  |
Assets: |  |
Total available for sale investments |  | 834
Recurring basis | U.S. treasury securities |  |
Assets: |  |
Total included in cash and cash equivalents | 298 |
Total available for sale investments | 18,894 | 18,426
Recurring basis | Money market fund |  |
Assets: |  |
Total included in cash and cash equivalents | 12,591 | 21,606
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) |  |
Assets: |  |
Total included in cash and cash equivalents | 12,889 | 21,606
Total available for sale investments | 18,894 | 18,426
Total assets measured at fair value on a recurring basis | 31,783 | 40,032
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | Certificate of deposit |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | Corporate debt securities |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | Commercial paper |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | U.S. government agencies |  |
Assets: |  |
Total available for sale investments |  | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | U.S. treasury securities |  |
Assets: |  |
Total included in cash and cash equivalents | 298 |
Total available for sale investments | 18,894 | 18,426
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1) | Money market fund |  |
Assets: |  |
Total included in cash and cash equivalents | 12,591 | 21,606
Recurring basis | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Total included in cash and cash equivalents | 0 | 0
Total available for sale investments | 25,735 | 34,742
Total assets measured at fair value on a recurring basis | 25,735 | 34,742
Recurring basis | Significant Other Observable Inputs (Level 2) | Certificate of deposit |  |
Assets: |  |
Total available for sale investments | 334 | 8,333
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate debt securities |  |
Assets: |  |
Total available for sale investments | 25,091 | 19,373
Recurring basis | Significant Other Observable Inputs (Level 2) | Commercial paper |  |
Assets: |  |
Total available for sale investments | 310 | 6,202
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. government agencies |  |
Assets: |  |
Total available for sale investments |  | 834
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. treasury securities |  |
Assets: |  |
Total included in cash and cash equivalents | 0 |
Total available for sale investments | 0 | 0
Recurring basis | Significant Other Observable Inputs (Level 2) | Money market fund |  |
Assets: |  |
Total included in cash and cash equivalents | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Total included in cash and cash equivalents | 0 | 0
Total available for sale investments | 0 | 0
Total assets measured at fair value on a recurring basis | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Certificate of deposit |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate debt securities |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Commercial paper |  |
Assets: |  |
Total available for sale investments | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | U.S. government agencies |  |
Assets: |  |
Total available for sale investments |  | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | U.S. treasury securities |  |
Assets: |  |
Total included in cash and cash equivalents | 0 |
Total available for sale investments | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Money market fund |  |
Assets: |  |
Total included in cash and cash equivalents | $ 0 | $ 0

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