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Investments and Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value (Details) - Recurring - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financial Assets |  |
Total | $ 403,167 | $ 278,842
Commercial paper |  |
Financial Assets |  |
Marketable investments | 23,421 |
Certificate of Deposit |  |
Financial Assets |  |
Marketable investments | 1,001 |
U.S. treasury |  |
Financial Assets |  |
Marketable investments | 2,800 | 15,727
Non-marketable investment |  |
Financial Assets |  |
Marketable investments | 12,850 | 12,850
Corporate bonds |  |
Financial Assets |  |
Marketable investments | 122,045 |
Commercial paper |  |
Financial Assets |  |
Cash equivalents | 156,355 |
Certificate of Deposit |  |
Financial Assets |  |
Cash equivalents | 27,723 | 15,995
U.S agency securities |  |
Financial Assets |  |
Cash equivalents |  | 3,369
Money market funds |  |
Financial Assets |  |
Cash equivalents | 56,972 | 68,133
U.S. treasury |  |
Financial Assets |  |
Cash equivalents |  | 23,497
Commercial paper |  |
Financial Assets |  |
Cash equivalents |  | 139,271
Level 1 |  |
Financial Assets |  |
Total | 59,772 | 107,357
Level 1 | Commercial paper |  |
Financial Assets |  |
Marketable investments | 0 |
Level 1 | Certificate of Deposit |  |
Financial Assets |  |
Marketable investments | 0 |
Level 1 | U.S. treasury |  |
Financial Assets |  |
Marketable investments | 2,800 | 15,727
Level 1 | Non-marketable investment |  |
Financial Assets |  |
Marketable investments | 0 | 0
Level 1 | Corporate bonds |  |
Financial Assets |  |
Marketable investments | 0 |
Level 1 | Commercial paper |  |
Financial Assets |  |
Cash equivalents | 0 |
Level 1 | Certificate of Deposit |  |
Financial Assets |  |
Cash equivalents | 0 | 0
Level 1 | U.S agency securities |  |
Financial Assets |  |
Cash equivalents |  | 0
Level 1 | Money market funds |  |
Financial Assets |  |
Cash equivalents | 56,972 | 68,133
Level 1 | U.S. treasury |  |
Financial Assets |  |
Cash equivalents |  | 23,497
Level 1 | Commercial paper |  |
Financial Assets |  |
Cash equivalents |  | 0
Level 2 |  |
Financial Assets |  |
Total | 330,545 | 158,635
Level 2 | Commercial paper |  |
Financial Assets |  |
Marketable investments | 23,421 |
Level 2 | Certificate of Deposit |  |
Financial Assets |  |
Marketable investments | 1,001 |
Level 2 | U.S. treasury |  |
Financial Assets |  |
Marketable investments | 0 | 0
Level 2 | Non-marketable investment |  |
Financial Assets |  |
Marketable investments | 0 | 0
Level 2 | Corporate bonds |  |
Financial Assets |  |
Marketable investments | 122,045 |
Level 2 | Commercial paper |  |
Financial Assets |  |
Cash equivalents | 156,355 |
Level 2 | Certificate of Deposit |  |
Financial Assets |  |
Cash equivalents | 27,723 | 15,995
Level 2 | U.S agency securities |  |
Financial Assets |  |
Cash equivalents |  | 3,369
Level 2 | Money market funds |  |
Financial Assets |  |
Cash equivalents | 0 | 0
Level 2 | U.S. treasury |  |
Financial Assets |  |
Cash equivalents |  | 0
Level 2 | Commercial paper |  |
Financial Assets |  |
Cash equivalents |  | 139,271
Level 3 |  |
Financial Assets |  |
Total | 12,850 | 12,850
Level 3 | Commercial paper |  |
Financial Assets |  |
Marketable investments | 0 |
Level 3 | Certificate of Deposit |  |
Financial Assets |  |
Marketable investments | 0 |
Level 3 | U.S. treasury |  |
Financial Assets |  |
Marketable investments | 0 | 0
Level 3 | Non-marketable investment |  |
Financial Assets |  |
Marketable investments | 12,850 | 12,850
Level 3 | Corporate bonds |  |
Financial Assets |  |
Marketable investments | 0 |
Level 3 | Commercial paper |  |
Financial Assets |  |
Cash equivalents | 0 |
Level 3 | Certificate of Deposit |  |
Financial Assets |  |
Cash equivalents | 0 | 0
Level 3 | U.S agency securities |  |
Financial Assets |  |
Cash equivalents |  | 0
Level 3 | Money market funds |  |
Financial Assets |  |
Cash equivalents | $ 0 | 0
Level 3 | U.S. treasury |  |
Financial Assets |  |
Cash equivalents |  | 0
Level 3 | Commercial paper |  |
Financial Assets |  |
Cash equivalents |  | $ 0

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