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RESTATEMENT OF PREVIOUSLY FILED FINANCIAL INFORMATION - DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Details)	Oct. 10, 2018 USD ($)	Oct. 10, 2018 USD ($)	Dec. 31, 2020	Dec. 31, 2019 $ / bbl	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018 $ / bbl	Aug. 27, 2018	Dec. 31, 2017 $ / bbl	Oct. 27, 2017	Sep. 25, 2017
Number Of Barrels Per Day												1,000
Payments For Termination Of Derivative Contracts | $	$ 3,438,300	$ 3,438,300
Call Option
Derivative, Price Risk Option Strike Price								54.60		55.35
Put Option
Derivative, Price Risk Option Strike Price								49.00		49.00
April 2019 Through December 2019
Number Of Barrels Per Day					5,500	5,500	3,500
January 2020 Through December 2020 [Member]
Number Of Barrels Per Day					2,000	2,000
Additional Derivative Contracts
Derivative, Price Risk Option Strike Price				60.00
Number Of Barrels Per Day							2,000		2,000		1,000
Additional Derivative Contracts | Call Option
Derivative, Price Risk Option Strike Price				70.05				54.80
Additional Derivative Contracts | Put Option
Derivative, Price Risk Option Strike Price				60.00				51.00
Additional Derivative Contracts | Scenario Forecast
Number Of Barrels Per Day			2,000

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- Definition

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- Definition

The cash outflow for termination of derivative contract.

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- Definition

The strike price on the price risk option contract such as a put option or a call option.

+ References

No definition available.

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