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Note 11 - Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Change in Asset Retirement Obligation [Table Text Block] |
(in thousands) |  | As of December 31, 2023 |  |  | As of December 31, 2022 |
Beginning balance |  | $ | 42,001 |  |  | $ | 40,694 |
Accretion |  |  | 2,352 |  |  |  | 1,958 |
Additions |  |  | 2,487 |  |  |  | 6,134 |
Revisions |  |  | 6,889 |  |  |  | (43 | )
Settlements |  |  | (6,747 | ) |  |  | (6,577 | )
Foreign currency gain (loss) |  |  | 361 |  |  |  | (165 | )
Ending balance |  | $ | 47,343 |  |  | $ | 42,001 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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