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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2025
Summary of Held-to-maturity debt securities at amortized cost in the financial statements. | These U.S. treasury securities are classified as held-to-maturity and all have been purchased with original maturities of 90 days or less. Held-to-maturity debt securities are recorded at amortized cost in the financial statements.
|  | September 30, 2025 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Aggregate Fair Value |
U.S. treasury securities |  | $ | 71,705 |  |  | $ | 10 |  |  | $ | — |  |  | $ | 71,715 |
|  | December 31, 2024 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Aggregate Fair Value |
U.S. treasury securities |  | $ | 106,535 |  |  | $ | 37 |  |  | $ | — |  |  | $ | 106,572 |

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