Reserve and Related Financial Data (SMOG) - Unaudited - Capitalized Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Extractive Industries [Abstract]
Not subject to depletion	$ 291,664	$ 228,151	$ 168,691
Subject to depletion	449,061	289,851	152,354
Total oil and gas properties, at cost	740,725	518,002	321,045
Less accumulated depreciation, depletion, and amortization	(61,103)	(27,628)	(14,210)
Total oil and gas properties, net	$ 679,622	$ 490,374	$ 306,835

No definition available.

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- Definition

Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities.

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- Definition

Capitalized costs of proved properties that include fee ownership or a lease, concession, or other interest representing the right to extract oil or gas subject to such terms as may be imposed by the conveyance of that interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
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Capitalized costs of unproven properties that include fee ownership or a lease, concession, or other interest representing the right to extract oil or gas subject to such terms as may be imposed by the conveyance of that interest.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The sum of capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation.

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Net amount of capitalized costs relating to oil and gas producing activities.

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