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Acquisitions - Business Combination - Additional Information (Details)
$ in Thousands
3 Months Ended
Nov. 16, 2020
USD ($)
Aug. 05, 2020
USD ($)
Property
shares
Mar. 30, 2020
shares
Feb. 28, 2020
USD ($)
shares
Dec. 10, 2019
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Castex 2005 Acquisition              
Business Acquisition [Line Items]              
Aggregate consideration of cash   $ 6,500          
Acquisition, transaction related cost   $ 1,413          
Number of properties | Property   16          
Castex 2005 Acquisition | Common Stock              
Business Acquisition [Line Items]              
Aggregate shares issued | shares   4,602,460          
LLOG Acquisition              
Business Acquisition [Line Items]              
Aggregate consideration of cash $ 13,200            
Acquisition, transaction related cost $ 200            
ILX and Castex              
Business Acquisition [Line Items]              
Aggregate consideration of cash       $ 385,000      
Acquisition, transaction related cost       $ 12,100      
ILX and Castex | General and Administrative Expense              
Business Acquisition [Line Items]              
Acquisition, transaction related cost           $ 0 $ 7,500
ILX and Castex | Contingent Convertible Preferred Stock              
Business Acquisition [Line Items]              
Conversion stock issued to sellers | shares       11,000,000.0      
ILX and Castex | Talos Energy L L C Stakeholders              
Business Acquisition [Line Items]              
Aggregate consideration of cash       $ 385,000      
Business acquisition, effective date         Jul. 01, 2019    
ILX and Castex | Talos Energy L L C Stakeholders | Series A Convertible Preferred Stock              
Business Acquisition [Line Items]              
Aggregate shares issued | shares     110,000 110,000      
Conversion of stock, new issuance | shares     11,000,000.0