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Derivatives - Subsequent Event Derivative Contracts (Details) - Not Designated as Hedges
Nov. 03, 2020
MMBTU_per_day
Bbls_per_day
$ / MMBTU
Sep. 30, 2020
MMBTU_per_day
Bbls_per_day
$ / bbl
$ / MMBTU
Basis Swaps - Crude Oil 2021, First Half    
Derivative [Line Items]    
Derivative, volume | Bbls_per_day   10,000
Derivative, ceiling | $ / bbl   52.37
Derivative, floor | $ / bbl   35.00
Basis Swaps - Crude Oil 2021, First Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | Bbls_per_day 14,000  
Basis Swaps - Crude Oil 2021, First Half | Subsequent Event | Long    
Derivative [Line Items]    
Derivative, weighted average price 1.80  
Basis Swaps - Crude Oil 2021, Second Half    
Derivative [Line Items]    
Derivative, volume | Bbls_per_day   10,000
Derivative, ceiling | $ / bbl   52.37
Derivative, floor | $ / bbl   35.00
Basis Swaps - Crude Oil 2021, Second Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | Bbls_per_day 0  
Basis Swaps - Crude Oil 2021, Second Half | Subsequent Event | Long    
Derivative [Line Items]    
Derivative, weighted average price 0  
Henry Hub ("HH") Two-Way Collars - Natural Gas 2021, First Half    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day   175,000
Derivative, ceiling   3.10
Derivative, floor   2.46
Henry Hub ("HH") Two-Way Collars - Natural Gas 2021, First Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day 50,000  
Derivative, ceiling 3.13  
Derivative, floor 2.70  
Henry Hub ("HH") Two-Way Collars - Natural Gas 2021, Second Half    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day   150,000
Derivative, ceiling   3.03
Derivative, floor   2.43
Henry Hub ("HH") Two-Way Collars - Natural Gas 2021, Second Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day 50,000  
Derivative, ceiling 3.13  
Derivative, floor 2.70  
Fixed Price Swaps - Natural Gas 2021, First Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day 50,000  
Fixed Price Swaps - Natural Gas 2021, First Half | Subsequent Event | Short    
Derivative [Line Items]    
Derivative, weighted average price 2.88  
Fixed Price Swaps - Natural Gas 2021, Second Half | Subsequent Event    
Derivative [Line Items]    
Derivative, volume | MMBTU_per_day 50,000  
Fixed Price Swaps - Natural Gas 2021, Second Half | Subsequent Event | Short    
Derivative [Line Items]    
Derivative, weighted average price 2.88