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FINANCIAL STATEMENT PRESENTATION - Additional Information (Details) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended
Mar. 31, 2017
Feb. 28, 2017
Mar. 31, 2018
Jun. 30, 2018
Apr. 05, 2018
Dec. 31, 2017
Nov. 21, 2017
Mar. 01, 2017
Schedule Of Significant Accounting Policies [Line Items]                
Restricted cash $ 74,100,000   $ 0     $ 18,742,000    
Increase (decrease) in net cash provided by investing activities (5,184,000)   $ 36,761,000          
Predecessor                
Schedule Of Significant Accounting Policies [Line Items]                
Restricted cash   $ 75,500,000            
Increase (decrease) in net cash provided by investing activities   (496,568,000)            
Talos Energy, Inc. | Scenario, Forecast                
Schedule Of Significant Accounting Policies [Line Items]                
Percentage of outstanding stock       37.00%        
Talos Energy, Inc. | Talos Energy | Scenario, Forecast                
Schedule Of Significant Accounting Policies [Line Items]                
Percentage of outstanding stock       63.00%        
Stone Energy Corp. | Talos Energy, Inc. | Scenario, Forecast                
Schedule Of Significant Accounting Policies [Line Items]                
Number of New Talos shares issued (in shares)       34,100,000        
Talos Production | Talos Energy, Inc. | Scenario, Forecast                
Schedule Of Significant Accounting Policies [Line Items]                
Percentage of outstanding stock       100.00%        
Senior Notes | 9.75% Senior Notes Due 2022 | Talos Energy, Inc.                
Schedule Of Significant Accounting Policies [Line Items]                
Aggregate principal amount of senior subordinated notes             $ 102,000,000  
Interest rate             9.75%  
7 ½% Senior Second Lien Notes due 2022 | 11% Second Lien Notes | Talos Energy, Inc.                
Schedule Of Significant Accounting Policies [Line Items]                
Interest rate     11.00%          
7 ½% Senior Second Lien Notes due 2022 | 7.5% Second Lien Notes                
Schedule Of Significant Accounting Policies [Line Items]                
Interest rate               7.50%
Accounting Standards Update 2016-18                
Schedule Of Significant Accounting Policies [Line Items]                
Increase (decrease) in net cash provided by investing activities $ 1,500,000              
Accounting Standards Update 2016-18 | Predecessor                
Schedule Of Significant Accounting Policies [Line Items]                
Increase (decrease) in net cash provided by investing activities   $ (75,500,000)            
Subsequent Event                
Schedule Of Significant Accounting Policies [Line Items]                
Stockholders party to voting agreements, shares owned (in shares)         10,212,937      
Stockholders party to voting agreements, percent of total shares owned         51.10%