Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS - Additional information (Details)

v3.20.2
ACQUISITIONS - Additional information (Details)
9 Months Ended
Apr. 09, 2019
USD ($)
a
shares
Sep. 30, 2020
USD ($)
Feb. 25, 2019
$ / shares
Business Acquisition [Line Items]      
Gas and Oil Area, Developed, Net | a 38,230    
Gas and Oil Area, Developed, Gross | a 49,754    
Business Combination, Acquisition Related Costs | $   $ 4,100,000  
Wishbone Acquisition      
Business Acquisition [Line Items]      
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares 4,581,001    
Payments to Acquire Businesses, Gross | $ $ 264,100,000    
Number of shares returned | shares 16,702    
Business Acquisition, Share Price | $ / shares     $ 6.19
Aggregate value of the shares returned | $   $ 103,385  
Common Stock Held in Escrow | shares 2,538,071    
Average Working Interest      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired 77.00%    
Average Net Revenue Interest      
Business Acquisition [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired 58.00%