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Investments in Other Companies (Tables) | 3 Months Ended
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Mar. 31, 2024
Investments in Other Companies |
Schedule of reconciliation of Eve Level 3 investments | The table below shows the reconciliation of the Eve Level 3 Investments (in thousands): ​
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Eve Level 3 Investments: | ​ | ​
Balance at December 31, 2023 |  | $ | 12,477
Unrealized loss | ​ |  | (2,731)
Balance at March 31, 2024 | ​ | $ | 9,746

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