ACQUISITIONS AND DIVESTITURES - Summary of purchase price and the value of assets acquired (Details) - Southwest Royalties, LLC $ in Thousands	Oct. 16, 2018 USD ($)
Business Acquisition [Line Items]
Value of assets acquired	$ 17,104
Asset retirement obligations assumed	(65)
Fair value of net assets acquired	17,039
Proved Properties
Business Acquisition [Line Items]
Value of assets acquired	12,562
Unproved Properties
Business Acquisition [Line Items]
Value of assets acquired	$ 4,542

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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