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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Components of the provision for income taxes |  |  |
Current Federal Tax (Expense) Benefit | $ 0 | $ 0 | $ 3,826
Current State and Local Tax (Expense) Benefit | (373) | (449) | (1,618)
Deferred portion of income tax (expense) benefit | (9,565) | 192,540 | 41,835
Income tax (expense) benefit | $ (9,938) | $ 192,091 | $ 44,043
Effective tax rate (as a percent) | 21.50% | 20.10% | 19.10%
Deferred income taxes [Abstract] |  |  |
Deferred tax liabilities, oil and gas properties | $ 117,085 | $ 83,816 |
Deferred tax liabilities, other | 4,835 | 10,054 |
Total deferred tax liabilities | 121,920 | 93,870 |
Deferred tax assets, derivative liabilities | 69,283 | 36,311 |
Deferred Tax Assets, Asset Retirement Obligation Liabilities | 21,899 | 18,424 |
Deferred tax assets, debt discount and deferred financing costs | 20,551 | 23,925 |
Deferred tax assets, pension | 7,413 | 7,183 |
Deferred tax assets, federal and state tax net operating loss carryovers | 3,299 | 3,898 |
Deferred tax assets, stock compensation | 2,246 | 2,701 |
Deferred tax assets, credit carryover | 897 | 7,543 |
Deferred tax assets, other liabilities | 5,024 | 7,273 |
Total deferred tax assets | 130,612 | 107,258 |
Deferred tax assets, valuation allowance | (18,461) | (13,388) |
Net deferred tax assets | 112,151 | 93,870 |
Total net deferred tax liabilities | 9,769 | 0 |
State and local jurisdiction [Member] |  |  |
Deferred income taxes [Abstract] |  |  |
Current state income tax payable | 362 | $ 853 |
Net operating loss carryforwards | 4,200 |  |
Internal Revenue Service (IRS) [Member] | Domestic tax authority [Member] | Research and development tax credit carryforward [Member] |  |  |
Deferred income taxes [Abstract] |  |  |
Deferred tax assets, credit carryover | $ 900 |  |

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