v3.22.2.2
Derivatives (Net Asset or Liability Positions in Balance Sheet) (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Estimated fair value of Company's commodity derivative instruments for cash collateral and associated cash as collateral      
Net derivative asset position, Collateral paid (received) $ 152,603 $ 165,250 $ 136,977
Fair value of derivatives (42,578) (36,843) (14,100)
Net derivative asset position, net $ 110,025 $ 128,407 $ 122,877