Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT - Revolving Credit Facility (Details)

v3.20.2
LONG-TERM DEBT - Revolving Credit Facility (Details) - Revolving Credit Facility
Oct. 05, 2018
Jul. 08, 2020
USD ($)
Jun. 30, 2020
USD ($)
Line of Credit Facility [Line Items]      
Number of days before maturity date 91 days    
Borrowing base     $ 800,000,000.0
Maximum debt to EBITDAX ratio under debt covenant 3.50    
Minimum current ratio under debt covenant 1.00    
Minimum percent of the fair value of reserves secured by mortgages     90.00%
Subsequent Event      
Line of Credit Facility [Line Items]      
Borrowing base   $ 660,000,000.0  
Federal funds effective rate      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 0.50%    
LIBOR Loans      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 1.00%    
LIBOR Loans | Minimum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 2.00%    
LIBOR Loans | Maximum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 3.00%    
Base rate | Minimum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 1.00%    
Base rate | Maximum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 2.00%