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Derivatives - Additional Information (Details)
bbl in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2020
$ / bbl
bbl
Dec. 31, 2021
bbl
Sep. 30, 2019
Credit Derivatives [Line Items]      
Derivative contracts, barrels 1,850    
Average fixed interest rate 3.91%    
5.00% Convertible Senior Notes due 2021      
Credit Derivatives [Line Items]      
Debt instrument, interest rate 5.00%    
5.00% Convertible Senior Notes due 2021 | Convertible Debt      
Credit Derivatives [Line Items]      
Debt instrument, interest rate 5.00%   5.00%
Futures      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 450    
Swaps      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 2,300    
Option Collars      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 75    
Purchases      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 3,450    
Purchases | Futures      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 450    
Purchases | Swaps      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 3,000    
Sales      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 5,300    
Sales | Futures      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 0    
Sales | Swaps      
Credit Derivatives [Line Items]      
Derivative contracts, barrels 5,300    
Minimum | Option Collar - Floor      
Credit Derivatives [Line Items]      
Derivative, average price risk option strike price | $ / bbl 36.50    
Minimum | Option Collar - Ceiling      
Credit Derivatives [Line Items]      
Derivative, average price risk option strike price | $ / bbl 60.00    
Maximum | Option Collar - Floor      
Credit Derivatives [Line Items]      
Derivative, average price risk option strike price | $ / bbl 48.77    
Maximum | Option Collar - Ceiling      
Credit Derivatives [Line Items]      
Derivative, average price risk option strike price | $ / bbl 65.00    
Forecast | Option Collars      
Credit Derivatives [Line Items]      
Derivative contracts, barrels   25