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Investments and Fair Value Measurements - Schedule of Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023
--- | --- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Total cash and cash equivalents | $ 217,514 | $ 107,921 | $ 270,300
Total marketable securities, current | 90,733 | 214,799 |
Total marketable securities, non-current | 0 | 6,088 |
Total marketable securities | 90,733 | 220,887 |
Total cash and cash equivalents and marketable securities | 308,247 | 328,808 |
U.S. Treasury securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total marketable securities, current | 37,557 | 73,448 |
Total marketable securities | 37,557 | 73,448 |
Corporate notes and bonds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total marketable securities, current | 26,451 | 105,566 |
Total marketable securities, non-current | 0 | 5,999 |
Total marketable securities | 26,451 | 111,565 |
Commercial paper |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total marketable securities, current | 26,725 | 25,934 |
Total marketable securities | 26,725 | 25,934 |
Agency bonds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total marketable securities, current | 0 | 9,851 |
Total marketable securities |  | 9,851 |
Asset-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total marketable securities, non-current | 0 | 89 |
Total marketable securities |  | 89 |
Cash |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total cash and cash equivalents | 18,245 | 21,269 |
U.S. Treasury securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total cash and cash equivalents | 49,789 | 52,830 |
Money market funds |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total cash and cash equivalents | 149,480 | 21,166 |
Commercial paper |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Total cash and cash equivalents | $ 0 | $ 12,656 |

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