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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Components of the provision for income taxes |  |  |
Current Federal Tax Expense | $ (8,461) | $ (9,230) | $ 0
Current State and Local Tax Expense | 395 | (5,531) | (373)
Deferred portion of income tax expense | (88,256) | (269,057) | (9,565)
Income tax expense | $ (96,322) | $ (283,818) | $ (9,938)
Effective tax rate (as a percent) | 10.50% | 20.30% | 21.50%
Deferred income taxes [Abstract] |  |  |
Deferred tax liabilities, oil and gas properties | $ 450,634 | $ 358,537 |
Deferred tax liabilities, derivative assets | 12,319 | 3,416 |
Deferred tax liabilities, other | 6,283 | 6,059 |
Total deferred tax liabilities | 469,236 | 368,012 |
Deferred tax assets, credit carryover | 56,097 | 161 |
Deferred tax assets, asset retirement obligation liabilities | 26,592 | 24,899 |
Deferred tax assets, lease liabilities | 4,454 | 4,525 |
Deferred tax assets, federal and state tax net operating loss carryovers | 3,271 | 28,151 |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Legal Settlements | 2,838 | 0 |
Deferred tax assets, pension | 2,453 | 3,970 |
Deferred tax assets, interest carryforward | 1,031 | 22,667 |
Deferred tax assets, other liabilities | 4,003 | 4,444 |
Total deferred tax assets | 100,739 | 88,817 |
Deferred tax assets, valuation allowance | (1,406) | (1,616) |
Net deferred tax assets | 99,333 | 87,201 |
Total net deferred tax liabilities | 369,903 | 280,811 |
Reconciliation of unrecognized tax benefits [Roll Forward] |  |  |
Unrecognized tax benefits, Beginning balance | 446 | 446 | $ 446
Unrecognized tax benefits, Ending balance | 24,159 | 446 | 446
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 23,713 | 0 | $ 0
Research and development tax credit carryforward |  |  |
Deferred income taxes [Abstract] |  |  |
Tax credit carryforwards | 56,100 |  |
State and local jurisdiction |  |  |
Deferred income taxes [Abstract] |  |  |
Income Taxes Receivable, Current | 1,253 |  |
Current income tax payable |  | (5,316) |
Net operating loss carryforwards | 74,000 |  |
Internal Revenue Service (IRS) | Domestic tax authority |  |  |
Deferred income taxes [Abstract] |  |  |
Income Taxes Receivable, Current |  | $ 770 |
Current income tax payable | $ (4,899) |  |

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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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