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Derivative Instruments and Fair Value Measurements - Narrative (Details) - Commodity Contract
3 Months Ended 12 Months Ended
Mar. 31, 2021
barrel_of_oil_per_day
contract
Dec. 31, 2020
barrel_of_oil_per_day
contract
Derivative Instruments, Gain (Loss) [Line Items]    
Number of contracts held | contract 7 6
Number of contracts held, fair value | contract 5 3
April 2021 through December 2021    
Derivative Instruments, Gain (Loss) [Line Items]    
Production | barrel_of_oil_per_day 740  
January 2021 through December 2021    
Derivative Instruments, Gain (Loss) [Line Items]    
Production | barrel_of_oil_per_day   192