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STOCK-BASED COMPENSATION - Valuation Assumptions (Details) - Officers	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
LTIP | TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	3 years	3 years	3 years
Risk-free interest rate	0.30%	0.22%	2.26%
Expected daily volatility	3.80%	3.50%	2.60%
Extraction Equity Plan | ATSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	2 years 2 months 12 days
Risk-free interest rate	0.56%
Expected daily volatility	4.70%

X

- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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-Name Accounting Standards Codification
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-SubTopic 10
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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.

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No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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-Topic 718
-SubTopic 10
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-Name Accounting Standards Codification
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-Subparagraph (SAB Topic 14.D.2)
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