Business transactions (Schedule of Consolidated Revenue and Profit in the Acquisition of the Aguada Baguales, El Porvenir and Puesto Touquet Blocks) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Disclosure Of Business transactions [Abstract]
Revenue	$ 612,401
Profit for the period	$ 102,873

The amount of combined profit loss of the entity as if the acquisition made at beginning of the period.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration