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Investments | 6 Months Ended
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Jun. 30, 2024
Investments [Abstract] |
Investments | Investments The following tables summarize the Company's investments in available-for-sale securities by significant investment category reported as short-term as of June 30, 2024 (in thousands):
| June 30, 2024
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Loss |  | Estimated Fair Value
U.S. Treasury | $ | 85,481 |  |  | $ | - |  |  | $ | (42) |  |  | $ | 85,439 |
Commercial paper | 13,905 |  |  | — |  |  | (21) |  |  | 13,884 |
Total available-for-sale investments | $ | 99,386 |  |  | $ | — |  |  | $ | (63) |  |  | $ | 99,323 |
The following table summarizes the contractual maturities of the Company's available-for-sale securities at June 30, 2024 (in thousands):
| June 30, 2024
| Amortized Cost |  | Fair Value
Mature in less than one year | $ | 99,386 |  |  | $ | 99,323 |
Total | $ | 99,386 |  |  | $ | 99,323 |
The following tables summarize the Company's investments in available-for-sale securities by significant investment category reported as short-term as of December 31, 2023 (in thousands):
| December 31, 2023
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Loss |  | Estimated Fair Value
U.S. Treasury | $ | 47,347 |  |  | $ | 19 |  |  | $ | — |  |  | $ | 47,366 |
Federal agency securities | 35,840 |  |  | — |  |  | (22) |  |  | 35,818 |
Commercial paper | 11,937 |  |  | — |  |  | (10) |  |  | 11,927 |
Total available-for-sale investments | $ | 95,124 |  |  | $ | 19 |  |  | $ | (32) |  |  | $ | 95,111 |
The following table summarizes the contractual maturities of the Company's available-for-sale securities at December 31, 2023 (in thousands):
| December 31, 2023
| Amortized Cost |  | Fair Value
Mature in less than one year | $ | 95,124 |  |  | $ | 95,111 |
Total | $ | 95,124 |  |  | $ | 95,111 |

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- Definition The entire disclosure for investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 321 -Publisher FASB -URI https://asc.fasb.org/321/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 325 -Publisher FASB -URI https://asc.fasb.org/325/tableOfContent + Details
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- References No definition available. + Details
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