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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of Comprehensive Income [Abstract]      
Net Income (Loss) $ 1,720,716 $ (142,077) $ (498,643)
Other Comprehensive (Loss) Income:      
Actuarially Determined Long-Term Liability Adjustments (Net of tax: $258, $(2,728), $(234)) (788) 8,010 661
Comprehensive Income (Loss) $ 1,719,928 $ (134,067) $ (497,982)