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Acquisitions - Business Combination - Additional Information (Details) - ILX and Castex - USD ($) $ in Thousands				3 Months Ended
	Mar. 30, 2020	Feb. 28, 2020	Dec. 10, 2019	Mar. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Aggregate consideration of cash				$ 385,000
Acquisition, transaction related cost				10,900
General and Administrative Expense
Business Acquisition [Line Items]
Acquisition, transaction related cost				$ 7,500	$ 3,400
Contingent Convertible Preferred Stock
Business Acquisition [Line Items]
Conversion stock issued to sellers		11,000,000.0
Talos Energy L L C Stakeholders
Business Acquisition [Line Items]
Business acquisition, effective date			Jul. 01, 2019
Aggregate consideration of cash		$ 385,000
Talos Energy L L C Stakeholders \| Series A Convertible Preferred Stock
Business Acquisition [Line Items]
Aggregate shares issued	110,000	110,000
Conversion of stock, new issuance	11,000,000.0