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Equity Method Investment (Tables) | 6 Months Ended
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Jun. 30, 2024
Equity Method Investments and Joint Ventures [Abstract] |
Marketable Securities | Summarized financial information for NMRD through the closing date of the sale is as follows:
| Results of Operations
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
| (In thousands)
Operating revenues | $ | — |  |  | $ | 3,975 |  |  | $ | 3,204 |  |  | $ | 6,505 |
Operating expenses | — |  |  | 1,965 |  |  | 3,378 |  |  | 4,384 |
Net earnings (loss) | $ | — |  |  | $ | 2,010 |  |  | $ | (174) |  |  | $ | 2,121 |
| Financial Position
| June 30, |  | December 31,
| 2024 |  | 2023
| (In thousands)
Current assets | $ | — |  |  | $ | 2,589 |
Net property, plant, and equipment | — |  |  | 235,791 |
Non-current assets | — |  |  | 1,849 |
Total assets | — |  |  | 240,229 |
Current liabilities | — |  |  | 730 |
Non-current liabilities | — |  |  | 358 |
Owners’ equity | $ | — |  |  | $ | 239,141 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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