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Dispositions - Additional Information (Detail) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 14, 2020 USD ($) | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) a | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gain (Loss) on sale of assets |  |  |  |  | $ 701,000 | $ 110,791,000 | $ (30,256,000)
Proceeds from disposal of assets |  |  |  |  | 303,000 | 246,127,000 | $ 784,937,000
Gross Amounts of Recognized Assets |  |  |  |  | 96,957,000 | 74,602,000 |
Contingent Consideration |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gross Amounts of Recognized Assets |  |  |  |  | 26,640,000 | 15,960,000 |
North Louisiana |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gain (Loss) on sale of assets |  |  |  |  | 479,000 | $ (9,500,000) |
Fair value of total consideration for sale | $ 260,000,000.0 |  |  |  |  |  |
Proceeds from disposal of assets | 245,000,000.0 |  |  |  |  |  |
North Louisiana | Oil and Gas |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gain (Loss) on sale of assets |  |  |  |  | 1,900,000 |  |
Loss on settlement of royalty claims |  |  |  |  | $ 1,500,000 |  |
North Louisiana | Contingent Consideration |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gross Amounts of Recognized Assets | $ 15,000,000.0 |  |  |  |  |  |
Northwest Pennsylvania |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gain (Loss) on sale of assets |  | $ 122,500,000 |  |  |  |  |
Proceeds from sale of oil and gas properties |  | $ 1,000,000.0 |  |  |  |  |
Pennsylvania |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Gain (Loss) on sale of assets |  |  | $ (36,500,000) | $ 5,900,000 |  |  |
Proceeds from sale of oil and gas properties |  |  | $ 750,000,000.0 | $ 34,000,000.0 |  |  |
Percentage of royalty disposed |  |  | 2.50% |  |  |  |
Pennsylvania | Natural Gas and Oil Properties |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Number of acres sold | a |  |  |  | 20,000 |  |  |

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