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Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
(Loss) Gain on Commodity Derivative Instruments	$ (1,632,733)	$ 172,982	$ 376,105
Other Revenue and Operating Income	105,883	82,459	87,992
Total Revenue and Other Operating Income	756,792	1,257,978	1,922,449
Total Natural Gas, NGL and Oil Revenue
Disaggregation of Revenue [Line Items]
Revenue	2,183,929	896,745	1,364,325
Natural Gas Revenue
Disaggregation of Revenue [Line Items]
Revenue	1,958,718	823,132	1,251,013
NGL Revenue
Disaggregation of Revenue [Line Items]
Revenue	202,670	64,138	104,139
Oil/Condensate Revenue
Disaggregation of Revenue [Line Items]
Revenue	22,541	9,475	9,173
Purchased Gas Revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 99,713	$ 105,792	$ 94,027

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