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Investments - Summary of Amortized Cost and Estimated Fair Value of Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | $ 98,845 | $ 144,304
Gross Unrealized Gains | 114 | 447
Gross Unrealized Losses | (2) |
Fair Value | 98,957 | 144,751
US Treasury Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortization Cost, Short-term investments | 83,733 | 129,294
Gross Unrealized Gains, Short-term investments | 106 | 436
Gross Unrealized Losses, Short-term investments | (1) |
Fair Value, Short-term investments | 83,838 | 129,730
Amortization Cost, Long-term investments | 5,109 | 5,084
Gross Unrealized Gains, Long-term investments |  | 5
Gross Unrealized Losses, Long-term investments | (1) |
Fair Value, Long-term investments | 5,108 | 5,089
US Government-Sponsored Enterprises Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortization Cost, Short-term investments | 10,003 | 9,926
Gross Unrealized Gains, Short-term investments | 8 | 6
Fair Value, Short-term investments | $ 10,011 | $ 9,932

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