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Oil and Gas Producing Activities - Costs Incurred Related to Oil and Natural Gas Property Acquisition Exploration and Development Activities (Detail) - USD ($) $ in Thousands | 5 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Aug. 13, 2018 | Dec. 31, 2020 | Dec. 31, 2019
Oil and Gas Exploration and Production Industries Disclosures [Abstract] |  |  |  |
Property acquisitions | $ 21,013 | $ 39,323 | $ 0 | $ 2,097,451
Exploration and development: |  |  |  |
Exploratory leasehold costs | 0 | 0 | 7,949 | 0
Development leasehold costs | 1,715 | 2,848 | 13,022 | 7,603
Development drilling and completion costs | 148,745 | 90,840 | 436,074 | 493,625
Other development costs | 13,612 | 13,871 | 34,525 | 9,339
Total capital expenditures | $ 185,085 | $ 146,882 | $ 491,570 | $ 2,608,018

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- Definition Costs incurred oil and gas exploration and development activities. + References No definition available. + Details
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- Definition Costs incurred other development costs. + References No definition available. + Details
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- Definition Cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62014-109447 + Details
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- Definition Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense. + References No definition available. + Details
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