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Property, Plant and Equipment - Components (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Abstract]    
Intangible Drilling Cost $ 5,988,091 $ 5,902,498
Gas Gathering Equipment 2,622,296 2,631,110
Gas Wells and Related Equipment 1,553,256 1,513,945
Proved Gas Properties 1,380,126 1,374,685
Unproved Gas Properties 724,281 724,401
Surface Land and Other Equipment 186,987 187,316
Other 207,839 203,163
Total Property, Plant and Equipment 12,662,876 12,537,118
Less: Accumulated Depreciation, Depletion and Amortization 5,301,316 5,194,485
Total Property, Plant and Equipment—Net $ 7,361,560 $ 7,342,633