Assets Held for Sale and Discontinued Operations - Summary of Results of Operations for Discontinued Operations (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Revenues	$ 730	$ 2,579	$ 2,249	$ 3,529
Impairment of proved properties			(6,849)
Depreciation, depletion, amortization and accretion	(172)	(160)	(341)	(212)
Other operating expenses	(2,091)	276	(4,350)	(804)
Other income		10		10
Income (loss) from discontinued operations, net of tax	$ (1,533)	$ 2,705	$ (9,291)	$ 2,523

Disposal group including discontinued operation impairment of proved properties.

No definition available.

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- Definition

Disposal group including discontinued operation other operating benefit (expense).

+ References

No definition available.

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- Definition

Amount after tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until disposal.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
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- References

No definition available.

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- Definition

Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

+ References

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- Definition

Amount of other income attributable to disposal group, including, but not limited to, discontinued operation.

+ References

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- Definition

Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

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