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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Statement of Comprehensive Income [Abstract]        
Net Income (Loss) $ 474,955 $ 33,357 $ 1,185,350 $ (889,585)
Other Comprehensive Income:        
Actuarially Determined Long-Term Liability Adjustments (Net of tax: $(27), $(48),$(54), $(96)) 72 135 144 270
Comprehensive Income (Loss) $ 475,027 $ 33,492 $ 1,185,494 $ (889,315)