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Segment Information (Details) - segment
6 Months Ended
Jun. 30, 2020
Dec. 31, 2017
Segment Reporting Information [Line Items]    
Number of divisions 2  
CNX Gathering LLC    
Segment Reporting Information [Line Items]    
Ownership percentage in equity method investment 100.00% 50.00%
E&P    
Segment Reporting Information [Line Items]    
Number of reportable segments 4