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Income Taxes - Net Deferred Tax Assets/Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Deferred Tax Assets: |  |
Net Operating Loss- Federal | $ 160,405 | $ 187,154
Section 174 Expenses | 92,414 | 26,397
Net Operating Loss - State | 76,259 | 82,189
Federal Tax Credits | 45,619 | 34,317
Interest Limitation | 36,451 | 14,618
Operating Lease Liabilities | 36,297 | 45,427
Gas Well Closing | 24,652 | 25,045
State Deferred Tax Adjustment | 15,983 | 0
Gas Derivatives | 14,466 | 461,952
Salary Retirement | 8,488 | 8,167
Equity Compensation | 5,419 | 4,474
Convertible Note Amortization | 3,628 | 5,080
Foreign Tax Credit | 0 | 7,738
Other | 6,089 | 8,396
Total Deferred Tax Assets | 526,170 | 910,954
Valuation Allowance | (39,264) | (84,609)
Net Deferred Tax Assets | 486,906 | 826,345
Deferred Tax Liabilities: |  |
Property, Plant and Equipment | (1,177,773) | (850,095)
Operating Lease Right-of-Use Assets | (35,321) | (44,238)
Investment in Partnerships | (2,303) | (163,483)
Advance Gas Royalties | (404) | (286)
Other | (559) | (523)
Total Deferred Tax Liabilities | (1,216,360) | (1,058,625)
Net Deferred Tax Liability | $ (729,454) | $ (232,280)

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