Property and equipment, net - Narrative (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
Dec. 31, 2019 |
|
| Property, Plant and Equipment [Abstract] | |||
| Impairment of oil and natural gas properties | $ 333,840,000 | $ 0 | |
| Impairment of lease and loss on acreage | 12,800,000 | ||
| Capitalized costs included in proved oil and natural gas properties not subject to DD&A | $ 24,800,000 | $ 19,900,000 | |
| X | ||||||||||
- Definition Impairment Of Lease And Loss On Acreage No definition available.
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| X | ||||||||||
- Definition The sum of the capitalized costs incurred during the period of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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