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Derivative Instruments Volume of Derivative Activity (Details) - Sharp Energy Inc [Member]
12 Months Ended
Dec. 31, 2020
gal
Swap [Member]  
Derivative [Line Items]  
Derivative, Nonmonetary Notional Amount, Volume 17,600,000
Put Or Call Option [Member]  
Derivative [Line Items]  
Derivative, Nonmonetary Notional Amount, Volume 400,000