Oil and Natural Gas Properties (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Oil And Natural Gas Properties [Line Items]
Impairment of proved and unproved oil and gas properties	$ 42,751,000	$ 0
Impairment expense	60,371,000	0
Proved Oil and Natural Gas Properties
Oil And Natural Gas Properties [Line Items]
Depletion expenses	24,500,000	$ 13,800,000
Impairment of proved and unproved oil and gas properties	25,252,000
Unproved Oil and Gas Properties
Oil And Natural Gas Properties [Line Items]
Impairment of proved and unproved oil and gas properties	$ 17,499,000
Unproved Oil and Gas Properties \| Minimum
Oil And Natural Gas Properties [Line Items]
Unproved oil and gas lease term	3 years
Unproved Oil and Gas Properties \| Maximum
Oil And Natural Gas Properties [Line Items]
Unproved oil and gas lease term	5 years
Oil and Gas Properties, Subject to Acreage Expirations
Oil And Natural Gas Properties [Line Items]
Impairment of proved and unproved oil and gas properties	$ 6,200,000
Eagle Ford Trend \| Proved Oil and Natural Gas Properties
Oil And Natural Gas Properties [Line Items]
Impairment of proved and unproved oil and gas properties	25,300,000
Eagle Ford Trend \| Unproved Oil and Gas Properties
Oil And Natural Gas Properties [Line Items]
Impairment of proved and unproved oil and gas properties	$ 11,300,000

Oil and gas commitments and contracts term.

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- Definition

Oil and natural gas properties.

+ References

No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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- Definition

The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

+ References

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- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 35
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466

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