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Short-Term Investments (Details) $ in Thousands | Sep. 30, 2024 USD ($) item | Dec. 31, 2023 USD ($) item
--- | --- | ---
Short-Term Investments |  |
Credit Loss related to sale of securities | $ 0 | $ 0
Short-term Investments |  |
Short-Term Investments |  |
Amortized Cost | 263,053 | 71,000
Gross Unrealized Gains | 331 |
Fair Value | $ 263,384 | $ 71,000
Number of short term investments in unrealized loss position for less than 12 months | item | 0 | 0
Treasury bills |  |
Short-Term Investments |  |
Amortized Cost | $ 59,240 |
Gross Unrealized Gains | 71 |
Fair Value | 59,311 |
Reverse repurchase agreements |  |
Short-Term Investments |  |
Amortized Cost | 100,000 | $ 71,000
Fair Value | 100,000 | $ 71,000
Treasury notes |  |
Short-Term Investments |  |
Amortized Cost | 103,813 |
Gross Unrealized Gains | 260 |
Fair Value | $ 104,073 |

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- Definition Amortized cost, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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