Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments - Change in fair value and settlement contract (Details)

v3.21.2
Derivative Financial Instruments - Change in fair value and settlement contract (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Derivative Financial Instruments        
Realized loss (gain) $ 30,026 $ (1,951) $ 53,627 $ (33,921)
Unrealized loss (gain) 43,111 13,112 125,529 (1,416)
Derivative loss (gain) $ 73,137 $ 11,161 $ 179,156 $ (35,337)