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DERIVATIVE AND HEDGING ACTIVITIES - Open Contracts (Details)
 1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Oct. 31, 2019
Dec. 31, 2019
MMBTU
$ / MMBTU
$ / bbl
bbl
Jun. 30, 2020
MMBTU
$ / MMBbls
$ / MMBTU
$ / bbl
bbl
Jun. 30, 2019
Jun. 30, 2020
MMBTU
$ / MMBbls
$ / MMBTU
$ / bbl
bbl
Jun. 30, 2019
Dec. 31, 2019
MMBTU
$ / MMBTU
$ / bbl
bbl
Derivative and hedging activities              
Financial Designation, Predecessor and Successor [Fixed List] Successor Successor Successor Predecessor Successor Predecessor Successor
April 2020 - December 2020 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   275,000         275,000
Basis Differential   0.75         0.75
April 2020 - December 2020 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential   0.75         0.75
July 2020 - September 2020 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     414,000   414,000    
Floors (in dollars per Mmbtu's/Bbl's)     37.70   37.70    
July 2020 - September 2020 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     37.70   37.70    
July 2020 - September 2020 | Fixed Swap | Natural gas              
Derivative and hedging activities              
Volume in Mmbtu's | MMBTU     276,000   276,000    
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU     2.61   2.61    
July 2020 - September 2020 | Fixed Swap | Natural gas | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBbls     2.61   2.61    
July 2020 - September 2020 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     92,000   92,000    
Basis Differential     0.90   0.90    
July 2020 - September 2020 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     0.90   0.90    
July 2020 - September 2020 | Call option | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     138,000   138,000    
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
July 2020 - September 2020 | Call option | Crude oil | Weighted Average              
Derivative and hedging activities              
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
July 2020 - September 2020 | Put options | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     368,000   368,000    
Floors (in dollars per Mmbtu's/Bbl's)     37.70   37.70    
July 2020 - September 2020 | Put options | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     37.70   37.70    
July 2020 - December 2020 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     92,000   92,000    
Floors (in dollars per Mmbtu's/Bbl's)     32.50   32.50    
July 2020 - December 2020 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     32.50   32.50    
July 2020 - December 2020 | Fixed Swap | Natural gas              
Derivative and hedging activities              
Volume in Mmbtu's | MMBTU     1,472,000   1,472,000    
July 2020 - December 2020 | Fixed Swap | Natural gas | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU     2.55   2.55    
July 2020 - December 2020 | Fixed Swap | Natural gas | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU     2.57   2.57    
July 2020 - December 2020 | Fixed Swap | Natural gas | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU     2.56   2.56    
July 2020 - December 2020 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     1,472,000   1,472,000    
July 2020 - December 2020 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential     (2.20)   (2.20)    
July 2020 - December 2020 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential     0.95   0.95    
July 2020 - December 2020 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     0.02   0.02    
July 2020 - December 2020 | Call option | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     1,177,600   1,177,600    
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
July 2020 - December 2020 | Call option | Crude oil | Weighted Average              
Derivative and hedging activities              
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
August 2020 - September 2020 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     61,000   61,000    
Floors (in dollars per Mmbtu's/Bbl's)     0.63   0.63    
August 2020 - September 2020 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.63   0.63    
August 2020 - December 2020 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     1,208,500   1,208,500    
August 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)     (1.56)   (1.56)    
August 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.64   0.64    
August 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.05   0.05    
October 2020 - December 2020 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     414,000   414,000    
October 2020 - December 2020 | Fixed Swap | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     31.02   31.02    
October 2020 - December 2020 | Fixed Swap | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     60.00   60.00    
October 2020 - December 2020 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     49.02   49.02    
October 2020 - December 2020 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     92,000   92,000    
Basis Differential     0.95   0.95    
October 2020 - December 2020 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     0.95   0.95    
October 2020 - December 2020 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     92,000   92,000    
Floors (in dollars per Mmbtu's/Bbl's)     0.51   0.51    
October 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.51   0.51    
October 2020 - December 2020 | Collars | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     138,000   138,000    
Floors (in dollars per Mmbtu's/Bbl's)     50.00   50.00    
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
October 2020 - December 2020 | Collars | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     50.00   50.00    
Ceilings (in dollars per Mmbtu's/Bbl's)     70.00   70.00    
October 2020 - December 2020 | Put options | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     230,000   230,000    
Floors (in dollars per Mmbtu's/Bbl's)     55.00   55.00    
October 2020 - December 2020 | Put options | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     55.00   55.00    
January 2021 - March 2021 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     180,000   180,000    
January 2021 - March 2021 | Fixed Swap | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     55.55   55.55    
January 2021 - March 2021 | Fixed Swap | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     56.08   56.08    
January 2021 - March 2021 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     55.82   55.82    
January 2021 - March 2021 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     180,000   180,000    
January 2021 - March 2021 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential     1.00   1.00    
January 2021 - March 2021 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential     1.05   1.05    
January 2021 - March 2021 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     1.03   1.03    
January 2021 - March 2021 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     180,000   180,000    
January 2021 - March 2021 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.42   0.42    
January 2021 - March 2021 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.48   0.48    
January 2021 - March 2021 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.45   0.45    
January 2021 - June 2021 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     271,500   271,500    
January 2021 - June 2021 | Fixed Swap | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     31.02   31.02    
January 2021 - June 2021 | Fixed Swap | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     32.60   32.60    
January 2021 - June 2021 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     32.07   32.07    
January 2021 - June 2021 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     271,500   271,500    
January 2021 - June 2021 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential     (2.20)   (2.20)    
January 2021 - June 2021 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential     (2.15)   (2.15)    
January 2021 - June 2021 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     (2.18)   (2.18)    
January 2021 - June 2021 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     271,500   271,500    
January 2021 - June 2021 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)     (1.56)   (1.56)    
January 2021 - June 2021 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)     (1.10)   (1.10)    
January 2021 - June 2021 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)     (1.25)   (1.25)    
April 2021 - June 2021 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     91,000   91,000    
Floors (in dollars per Mmbtu's/Bbl's)     54.60   54.60    
April 2021 - June 2021 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     54.60   54.60    
April 2021 - June 2021 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     91,000   91,000    
Basis Differential     1.05   1.05    
April 2021 - June 2021 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     1.05   1.05    
April 2021 - June 2021 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     91,000   91,000    
Floors (in dollars per Mmbtu's/Bbl's)     0.32   0.32    
April 2021 - June 2021 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     0.32   0.32    
April 2021 - December 2021 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     551,500   551,500    
Floors (in dollars per Mmbtu's/Bbl's)     32.50   32.50    
April 2021 - December 2021 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)     32.50   32.50    
April 2021 - December 2021 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     551,500   551,500    
Basis Differential     (2.20)   (2.20)    
April 2021 - December 2021 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential     (2.20)   (2.20)    
April 2021 - December 2021 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl     551,500   551,500    
Floor (in dollars per Mmbtu's/Bbl's)     (1.28)   (1.28)    
April 2021 - December 2021 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)     (1.28)   (1.28)    
January 2020 - June 2020 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   182,000         182,000
Floors (in dollars per Mmbtu's/Bbl's)   55.74         55.74
January 2020 - June 2020 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   55.74         55.74
January 2020 - September 2020 | Fixed Swap | Natural gas              
Derivative and hedging activities              
Volume in Mmbtu's | MMBTU   1,186,000         1,186,000
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.61         2.61
January 2020 - September 2020 | Fixed Swap | Natural gas | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.61         2.61
January 2020 - December 2020 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   732,000         732,000
January 2020 - December 2020 | Fixed Swap | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   55.68         55.68
January 2020 - December 2020 | Fixed Swap | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   60.00         60.00
January 2020 - December 2020 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   57.84         57.84
January 2020 - December 2020 | Fixed Swap | Natural gas              
Derivative and hedging activities              
Volume in Mmbtu's | MMBTU   2,928,000         2,928,000
January 2020 - December 2020 | Fixed Swap | Natural gas | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.55         2.55
January 2020 - December 2020 | Fixed Swap | Natural gas | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.57         2.57
January 2020 - December 2020 | Fixed Swap | Natural gas | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.56         2.56
January 2020 - December 2020 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,464,000         1,464,000
January 2020 - December 2020 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential   0.67         0.67
January 2020 - December 2020 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential   0.85         0.85
January 2020 - December 2020 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential   0.72         0.72
January 2020 - December 2020 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   366,000         366,000
Floors (in dollars per Mmbtu's/Bbl's)   0.37         0.37
January 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.37         0.37
January 2020 - December 2020 | Collars | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   549,000         549,000
Floors (in dollars per Mmbtu's/Bbl's)   50.00         50.00
Ceilings (in dollars per Mmbtu's/Bbl's)   70.00         70.00
January 2020 - December 2020 | Collars | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   50.00         50.00
Ceilings (in dollars per Mmbtu's/Bbl's)   70.00         70.00
January 2020 - December 2020 | Call option | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   2,342,400         2,342,400
Ceilings (in dollars per Mmbtu's/Bbl's)   70.00         70.00
January 2020 - December 2020 | Call option | Crude oil | Weighted Average              
Derivative and hedging activities              
Ceilings (in dollars per Mmbtu's/Bbl's)   70.00         70.00
January 2020 - December 2020 | Put options | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   915,000         915,000
Floors (in dollars per Mmbtu's/Bbl's)   55.00         55.00
January 2020 - December 2020 | Put options | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   55.00         55.00
February 2020 - December 2020 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,340,000         1,340,000
February 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.41         0.41
February 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.54         0.54
February 2020 - December 2020 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.44         0.44
January 2021 - December 2021 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,460,000 1,460,000   1,460,000   1,460,000
January 2021 - December 2021 | Fixed Swap | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   50.70 50.70   50.70   50.70
January 2021 - December 2021 | Fixed Swap | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   52.80 52.80   52.80   52.80
January 2021 - December 2021 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   51.91 51.91   51.91   51.91
January 2021 - December 2021 | Fixed Swap | Natural gas              
Derivative and hedging activities              
Volume in Mmbtu's | MMBTU   2,190,000 2,190,000   2,190,000   2,190,000
January 2021 - December 2021 | Fixed Swap | Natural gas | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.47 2.47   2.47   2.47
January 2021 - December 2021 | Fixed Swap | Natural gas | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.48 2.48   2.48   2.48
January 2021 - December 2021 | Fixed Swap | Natural gas | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's) | $ / MMBTU   2.47 2.47   2.47   2.47
January 2021 - December 2021 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,460,000 1,460,000   1,460,000   1,460,000
January 2021 - December 2021 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential   0.82 0.82   0.82   0.82
January 2021 - December 2021 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential   0.95 0.95   0.95   0.95
January 2021 - December 2021 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential   0.85 0.85   0.85   0.85
January 2021 - December 2021 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,460,000 1,460,000   1,460,000   1,460,000
January 2021 - December 2021 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.13 0.13   0.13   0.13
January 2021 - December 2021 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.14 0.14   0.14   0.14
January 2021 - December 2021 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.14 0.14   0.14   0.14
January 2022 - December 2022 | Fixed Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,460,000 1,460,000   1,460,000   1,460,000
Floors (in dollars per Mmbtu's/Bbl's)   51.50 51.50   51.50   51.50
January 2022 - December 2022 | Fixed Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   51.50 51.50   51.50   51.50
January 2022 - December 2022 | Basis Swap | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   1,460,000 1,460,000   1,460,000   1,460,000
January 2022 - December 2022 | Basis Swap | Crude oil | Minimum              
Derivative and hedging activities              
Basis Differential   0.85 0.85   0.85   0.85
January 2022 - December 2022 | Basis Swap | Crude oil | Maximum              
Derivative and hedging activities              
Basis Differential   0.95 (0.95)   (0.95)   0.95
January 2022 - December 2022 | Basis Swap | Crude oil | Weighted Average              
Derivative and hedging activities              
Basis Differential   0.88 0.88   0.88   0.88
January 2022 - December 2022 | WTI NYMEX Roll | Crude oil              
Derivative and hedging activities              
Volume in Bbl's | bbl   2,555,000 1,460,000   1,460,000   2,555,000
January 2022 - December 2022 | WTI NYMEX Roll | Crude oil | Minimum              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)   (0.02)         (0.02)
January 2022 - December 2022 | WTI NYMEX Roll | Crude oil | Maximum              
Derivative and hedging activities              
Floors (in dollars per Mmbtu's/Bbl's)   0.00         0.00
January 2022 - December 2022 | WTI NYMEX Roll | Crude oil | Weighted Average              
Derivative and hedging activities              
Floor (in dollars per Mmbtu's/Bbl's)   (0.01)         (0.01)