Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION AND LIQUIDITY, MANAGEMENT'S PLANS AND GOING CONCERN (Schedule of Error Corrections and Prior Period Adjustments) (Details)

v3.21.1
BASIS OF PRESENTATION AND LIQUIDITY, MANAGEMENT'S PLANS AND GOING CONCERN (Schedule of Error Corrections and Prior Period Adjustments) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Total Revenues $ 247,358 $ 299,338
Transportation, gathering, processing and compression 105,867 110,357
Total Operating Expenses 196,501 779,425
Natural gas sales    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Revenue $ 235,321 161,008
As Reported    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Total Revenues   246,877
Transportation, gathering, processing and compression   57,896
Total Operating Expenses   726,964
As Reported | Natural gas sales    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Revenue   108,547
Adjustments    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Total Revenues   52,461
Transportation, gathering, processing and compression   52,461
Total Operating Expenses   52,461
Adjustments | Natural gas sales    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Revenue   $ 52,461