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Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2022
Asset Retirement Obligation Disclosure [Abstract] |
Summary of Changes in Asset Retirement Obligation Liability Balances | The components of the changes in the asset retirement obligation liabilities for the periods stated were as follows:
(Dollars in thousands) | Short-Term Portion |  | Long-Term Portion |  | Total
Balance at December 31, 2020 | $ | 335 |  |  | $ | 7,289 |  |  | $ | 7,624 |
Accretion | (125) |  |  | 741 |  |  | 616 |
Amounts paid | (334) |  |  | — |  |  | (334) |
Additions | (129) |  |  | (1,292) |  |  | (1,421) |
Reclassifications | 383 |  |  | (383) |  |  | — |
Balance at December 31, 2021 | 130 |  |  | 6,355 |  |  | 6,485 |
Accretion | 138 |  |  | 542 |  |  | 680 |
Amounts paid | (288) |  |  | — |  |  | (288) |
Additions | 70 |  |  | 533 |  |  | 603 |
Reclassifications | 193 |  |  | (193) |  |  | — |
Balance at December 31, 2022 | $ | 243 |  |  | $ | 7,237 |  |  | $ | 7,480 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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