Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Fair value gains (losses) (Details)

v3.21.1
Derivative Instruments - Fair value gains (losses) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Summary of realized and unrealized gains (losses) on derivative instruments    
Derivative fair value (gains) losses $ (177,756) $ 565,833
Commodity derivative | Revenue    
Summary of realized and unrealized gains (losses) on derivative instruments    
Derivative fair value (gains) losses (169,967) $ 565,833
Embedded derivatives | Revenue    
Summary of realized and unrealized gains (losses) on derivative instruments    
Derivative fair value (gains) losses $ (7,789)