Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT - Additional Information (Details)

v3.22.0.1
LONG-TERM DEBT - Additional Information (Details) - USD ($)
shares in Millions
 5 Months Ended 7 Months Ended 12 Months Ended
Oct. 14, 2021
May 17, 2021
May 17, 2021
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
May 16, 2021
Jul. 31, 2019
Debt Instrument [Line Items]                  
Debtor-in-possession financing, letters of credit outstanding       $ 262,500,000 $ 262,500,000        
Debtor-in-possession financing, amount arranged       105,000,000 105,000,000        
Debtor-in-possession financing, borrowings outstanding       157,500,000 157,500,000        
Gain on extinguishment of debt     $ 0 (3,040,000)   $ 49,579,000 $ 48,630,000    
Interest capitalized     0 198,000   907,000 3,372,000    
Oil and gas properties                  
Debt Instrument [Line Items]                  
Interest capitalized     0 200,000   900,000      
Senior notes                  
Debt Instrument [Line Items]                  
Number of shares issued in transaction (in shares)   19.7              
Consideration received on transaction       550,000,000          
Authorized amount             $ 200,000,000   $ 100,000,000
Repurchased face amount           73,300,000      
Repayments of debt           22,800,000      
Gain on extinguishment of debt           49,600,000      
Senior notes | Carrying value                  
Debt Instrument [Line Items]                  
Carrying value of notes       548,900,000 548,900,000        
Senior notes | Fair value | Level 1                  
Debt Instrument [Line Items]                  
Carrying value of notes       603,800,000 603,800,000        
Revolving credit facility                  
Debt Instrument [Line Items]                  
Debtor-in-possession financing, amount arranged   $ 580,000,000 580,000,000            
DIP credit facility | Line of Credit                  
Debt Instrument [Line Items]                  
Long-term debt       0 0 157,500,000      
Pre-petition revolving credit facility | Revolving credit facility                  
Debt Instrument [Line Items]                  
Borrowing base               $ 580,000,000  
Pre-petition revolving credit facility | Line of Credit                  
Debt Instrument [Line Items]                  
Long-term debt       0 $ 0 292,910,000      
Exit Facility | Revolving credit facility                  
Debt Instrument [Line Items]                  
Debtor-in-possession financing, amount arranged   1,500,000,000 1,500,000,000            
Exit Facility | Revolving credit facility | Fresh Start Adjustments                  
Debt Instrument [Line Items]                  
Line of credit facility, commitment fee amount   580,000,000              
Debt instrument, amount   1,500,000,000 1,500,000,000            
Future borrowings available   40,000,000 40,000,000            
Exit Facility | Letter of credit | Fresh Start Adjustments                  
Debt Instrument [Line Items]                  
Credit facility   150,000,000 150,000,000            
New Credit Facility | Revolving credit facility                  
Debt Instrument [Line Items]                  
Credit facility $ 1,500,000,000                
Borrowing base 850,000,000                
Line of credit facility, commitment fee amount $ 700,000,000                
Unused capacity, commitment fee percentage 0.50%                
Weight average interest rate         3.19%        
Debt instrument net funded leverage ratio 325.00%                
Debt instrument current ratio 100.00%                
New Credit Facility | Letter of credit                  
Debt Instrument [Line Items]                  
Credit facility $ 175,000,000                
New Credit Facility | Line of Credit                  
Debt Instrument [Line Items]                  
Long-term debt       164,000,000 $ 164,000,000        
Letters of credit outstanding       122,100,000 122,100,000        
New Credit Facility | Base Rate | Revolving credit facility | Maximum                  
Debt Instrument [Line Items]                  
Interest rate 2.75%                
New Credit Facility | Base Rate | Revolving credit facility | Minimum                  
Debt Instrument [Line Items]                  
Interest rate 1.75%                
New Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving credit facility | Maximum                  
Debt Instrument [Line Items]                  
Interest rate 3.75%                
New Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving credit facility | Minimum                  
Debt Instrument [Line Items]                  
Interest rate 2.75%                
First-Out Term Loan Facility | Revolving credit facility                  
Debt Instrument [Line Items]                  
Line of credit facility, quarterly installments   15,000,000              
Debtor-in-possession financing, amount arranged   180,000,000 180,000,000            
First-Out Term Loan Facility | Revolving credit facility | Fresh Start Adjustments                  
Debt Instrument [Line Items]                  
Debt instrument, amount   180,000,000 180,000,000            
8.000% senior unsecured notes due 2026                  
Debt Instrument [Line Items]                  
Long-term debt       $ 550,000,000 $ 550,000,000 0      
Stated interest rate       8.00% 8.00%        
8.000% senior unsecured notes due 2026 | Senior notes                  
Debt Instrument [Line Items]                  
Debtor-in-possession financing, amount arranged   550,000,000 550,000,000            
8.000% senior unsecured notes due 2026 | Senior notes | Fresh Start Adjustments                  
Debt Instrument [Line Items]                  
Debt instrument, amount   $ 550,000,000 $ 550,000,000            
Stated interest rate   8.00% 8.00%            
New Credit Facility | Line of Credit                  
Debt Instrument [Line Items]                  
Long-term debt           $ 0