CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CONSOLIDATED STATEMENT OF CASH FLOWS
Payments relating to tax self withholding	$ 13,206,000	$ 22,324,000	$ 35,116,000

The amount of cash outflow for tax self-withholding

No definition available.

Name:	gprk_PaymentsRelatedToTaxSelfWithholding
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration