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Property, Plant and Equipment - Components (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Property, Plant and Equipment [Abstract]    
Intangible Drilling Cost $ 5,749,646 $ 5,554,021
Gas Gathering Equipment 2,576,681 2,542,587
Gas Wells and Related Equipment 1,440,999 1,342,719
Proved Gas Properties 1,368,079 1,345,114
Unproved Gas Properties 720,697 734,890
Surface Land and Other Equipment 191,123 193,153
Other 200,633 195,214
Total Property, Plant and Equipment 12,247,858 11,907,698
Less: Accumulated Depreciation, Depletion and Amortization 5,008,026 4,811,189
Total Property, Plant and Equipment—Net $ 7,239,832 $ 7,096,509