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Debt - Additional Information (Details)
$ in Thousands
 6 Months Ended
Jul. 15, 2029
Jul. 22, 2026
Jul. 13, 2026
USD ($)
Jan. 20, 2026
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Debt Instrument [Line Items]            
Notes issued         $ 1,250,000 $ 1,250,000
Letter of Credit | Maximum            
Debt Instrument [Line Items]            
Line of Credit Facility, Commitments       $ 250,000    
Amended and Restated Credit Agreement            
Debt Instrument [Line Items]            
Line of Credit Facility, Commitments       700,000    
Credit facility, maximum borrowing capacity       $ 700,000    
Letter of credit facility borrowing, description         The A&R Credit Agreement matures on January 20, 2030 and has an initial borrowing base and total commitments of $700.0 million (with a letter of credit facility with a $250.0 million sublimit).  
Debt instrument, maturity date       Jan. 20, 2030    
Percentage of mortgage covering oil and natural gas assets       85.00%    
Amended and Restated Credit Agreement | Minimum            
Debt Instrument [Line Items]            
Debt instrument covenant current ratio       1    
Amended and Restated Credit Agreement | Maximum            
Debt Instrument [Line Items]            
Consolidated total debt to EBITDAX ratio       3    
8.000% Second-Priority Senior Secured Notes due July 2034 | Senior Notes            
Debt Instrument [Line Items]            
Debt instrument interest rate     8.00%      
Debt instrument, maturity date         Jul. 15, 2034  
Debt instrument redemption, description         Talos Production may redeem all or a portion of the 8.000% Notes in whole at any time or in part from time to time at the following redemption prices (expressed as percentages of the principal amount) plus accrued and unpaid interest if redeemed during the period commencing on July 15 of the years set forth below  
Debt Instrument, Frequency of Periodic Payment         semi-annually  
Debt instrument payment terms         semi-annually each January 15 and July 15  
8.000% Second-Priority Senior Secured Notes due July 2034 | Senior Notes | Forecast            
Debt Instrument [Line Items]            
Debt instrument, redemption price, percentage 108.00%          
Percentage of principal amount redeemed 40.00%          
8.000% Second-Priority Senior Secured Notes due July 2034 | Senior Notes | Pro Forma            
Debt Instrument [Line Items]            
Debt instrument, redemption price, percentage     100.00%      
Debt instrument, repurchase amount     $ 175,000      
9.000% Second-Priority Senior Secured Notes due February 2029 | Senior Notes            
Debt Instrument [Line Items]            
Debt instrument, redemption price, percentage     104.50%      
Debt instrument interest rate     9.00%      
Debt instrument, repurchase amount     $ 625,000      
Revolving Credit Facility Matures on January 20, 2030            
Debt Instrument [Line Items]            
Bank credit facility, description         The borrowing base is redetermined by the lenders at least semi-annually during the second quarter and fourth quarter of each year based on a proved reserves report that the Company delivers to the administrative agent of its bank credit facility.  
Revolving Credit Facility Matures on January 20, 2030 | Line of Credit            
Debt Instrument [Line Items]            
Notes issued         $ 0 $ 0
Bank Credit Facility            
Debt Instrument [Line Items]            
Credit facility, maximum borrowing capacity         700,000  
Bank Credit Facility | Minimum | Pro Forma | Shell Acquisition            
Debt Instrument [Line Items]            
Credit facility, maximum borrowing capacity         700,000  
Bank Credit Facility | Maximum | Pro Forma | Shell Acquisition            
Debt Instrument [Line Items]            
Credit facility, maximum borrowing capacity         $ 850,000  
Bank Credit Facility | Letter of Credit            
Debt Instrument [Line Items]            
Bank credit facility, description         the Parent Company, Talos Production, and certain other direct and indirect subsidiaries of both the Parent Company and Talos Production entered into the Borrowing Base Redetermination Agreement, Incremental Agreement, and First Amendment to Amended and Restated Credit Agreement (the “First Amendment”). The First Amendment, among other things, permits the incurrence of additional indebtedness in order to fund the Coulomb and Na Kika Acquisition, with such indebtedness excluded from any reduction of the borrowing base that would otherwise result from such incurrence, and reaffirms the borrowing base at $700.0 million as part of the biannual redetermination of the borrowing base, effective upon closing of the First Amendment. The First Amendment also (i) provides for a borrowing base increase from $700.0 million to $850.0 million and (ii) provides for an increase in the letter of credit sublimit from $250.0 million to $300.0 million, in each case, subject to and effective upon the consummation of the Coulomb and Na Kika Acquisition.  
Bank Credit Facility | Letter of Credit | Minimum | Pro Forma | Shell Acquisition            
Debt Instrument [Line Items]            
Line of Credit Facility, Commitments         $ 250,000  
Bank Credit Facility | Letter of Credit | Maximum | Pro Forma | Shell Acquisition            
Debt Instrument [Line Items]            
Line of Credit Facility, Commitments         $ 300,000  
One Month Adjusted Term Secured Overnight Financing Rate [Member] | Amended and Restated Credit Agreement            
Debt Instrument [Line Items]            
Debt Instrument, Basis Spread on Variable Rate       1.00%    
Base Rate Federal Funds [Member] | Amended and Restated Credit Agreement            
Debt Instrument [Line Items]            
Debt Instrument, Basis Spread on Variable Rate       0.50%    
Subsequent Events | 8.000% Second-Priority Senior Secured Notes due July 2034 | Senior Notes            
Debt Instrument [Line Items]            
Debt instrument interest rate     8.00%      
Notes issued     $ 800,000      
Subsequent Events | Bank Credit Facility | Second A&R Credit Agreement | Minimum | Restricted Foreign Subsidiary | Phoenix-Durango Offshore Company, S. de R.L. de C.V.            
Debt Instrument [Line Items]            
Consolidated total debt to EBITDAX ratio   1.25        
Subsequent Events | Bank Credit Facility | Second A&R Credit Agreement | Maximum | Restricted Foreign Subsidiary | Phoenix-Durango Offshore Company, S. de R.L. de C.V.            
Debt Instrument [Line Items]            
Consolidated total debt to EBITDAX ratio   1.5