Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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RELATED PARTY TRANSACTIONS - Share Repurchases (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Repurchases of common stock		$ 15,108	$ 22,195
W Energy Partners LLC
Related Party Transaction [Line Items]
Repurchases of common stock (in shares)	2,900,000
Repurchases of common stock	$ 10,000