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Financial Instruments (Tables) | 9 Months Ended
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Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Marketable Securities and Long-Term Investments | Marketable securities and long-term investments classified as available-for-sale on September 30, 2024 and December 31, 2023 consisted of the following (in thousands):
| September 30, 2024
| Maturity |  | Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
U.S. Treasury bills | Less than one year |  | $ | 113,496 |  |  | $ | 194 |  |  | $ | — |  |  | $ | 113,690 |
U.S. Treasury bills | Between one and two years |  | 2,559 |  |  | — |  |  | (2) |  |  | 2,557 |
Total |  |  | $ | 116,055 |  |  | $ | 194 |  |  | $ | (2) |  |  | $ | 116,247 |
| December 31, 2023
| Maturity |  | Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
U.S. Treasury bills | Less than one year |  | $ | 141,075 |  |  | $ | 86 |  |  | $ | — |  |  | $ | 141,161 |
U.S. Treasury bills | Between one and two years |  | 23,134 |  |  | 27 |  |  | — |  |  | 23,161 |
Total |  |  | $ | 164,209 |  |  | $ | 113 |  |  | $ | — |  |  | $ | 164,322 |

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