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Natural Gas Producing Activities (Unaudited) - Costs Incurred Relating to Natural Gas, NGL, and Oil Production Activities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Capitalized costs |  |  |
Proved properties | $ 30,471,164 | $ 25,142,857 |
Unproved properties | 2,039,431 | 1,747,705 |
Total capitalized costs | 32,510,595 | 26,890,562 |
Less: Accumulated depreciation and depletion | 10,734,099 | 9,119,553 |
Net capitalized costs | 21,776,496 | 17,771,009 |
Property acquisition: |  |  |
Proved properties | 4,142,621 | 82,276 | $ 2,544,316
Unproved properties | 575,130 | 113,523 | 805,942
Exploration | 3,330 | 3,438 | 24,403
Development | 1,782,428 | 1,298,665 | 954,580
2022 Asset Acquisition |  |  |
Property acquisition: |  |  |
Unproved properties |  | 17,100 |
2022 Asset Acquisition | Marcellus leases |  |  |
Property acquisition: |  |  |
Proved properties |  | $ 40,500 |
Alta Acquisition and Reliance Asset Acquisition | Marcellus leases |  |  |
Property acquisition: |  |  |
Proved properties |  |  | 450,000
Alta Acquisition and Reliance Asset Acquisition | Marcellus wells |  |  |
Property acquisition: |  |  |
Proved properties |  |  | 1,754,700
Alta Acquisition and Reliance Asset Acquisition | Marcellus Midstream Assets |  |  |
Property acquisition: |  |  |
Proved properties |  |  | 257,900
Alta Acquisition |  |  |
Property acquisition: |  |  |
Unproved properties |  |  | $ 743,300
Tug Hill and XcL Midstream |  |  |
Property acquisition: |  |  |
Unproved properties | 523,000 |  |
Tug Hill and XcL Midstream | Marcellus leases |  |  |
Property acquisition: |  |  |
Proved properties | 719,600 |  |
Tug Hill and XcL Midstream | Marcellus wells |  |  |
Property acquisition: |  |  |
Proved properties | 2,522,300 |  |
Tug Hill and XcL Midstream | Marcellus Midstream Assets |  |  |
Property acquisition: |  |  |
Proved properties | $ 757,600 |  |

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