Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION (Schedule of Error Corrections and Prior Period Adjustments) (Details)

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BASIS OF PRESENTATION (Schedule of Error Corrections and Prior Period Adjustments) (Details) - USD ($)
$ in Thousands
 1 Months Ended 2 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended
Jun. 30, 2021
May 17, 2021
Jun. 30, 2020
May 17, 2021
Jun. 30, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Total Revenues $ 5,724 $ 25,679 $ 186,301 $ 273,037 $ 485,639
Transportation, gathering, processing and compression 41,376 55,219 113,865 161,086 224,222
Total Operating Expenses 207,467 94,194 742,051 290,695 1,521,476
Natural gas sales          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Revenue $ 111,718 $ 109,069 140,688 $ 344,390 301,696
As Reported          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Total Revenues     132,410   379,287
Transportation, gathering, processing and compression     59,974   117,870
Total Operating Expenses     688,160   1,415,124
As Reported | Natural gas sales          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Revenue     86,797   195,344
Adjustments          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Total Revenues     53,891   106,352
Transportation, gathering, processing and compression     53,891   106,352
Total Operating Expenses     53,891   106,352
Adjustments | Natural gas sales          
Error Corrections and Prior Period Adjustments Restatement [Line Items]          
Revenue     $ 53,891   $ 106,352