Name:	gprk_DisclosureOfFeesPaidToAuditorsLineItems
Namespace Prefix:	gprk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amounts of fees paid or payable to the entity's auditors for services non related to the audit process or to the tax review.

No definition available.

Name:	gprk_NonauditServiceFees
Namespace Prefix:	gprk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of fees paid or payable to the entity's auditors.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_AuditorsRemuneration
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of fees paid or payable to the entity's auditors for auditing services.

Name:	ifrs-full_AuditorsRemunerationForAuditServices
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of fees paid or payable to the entity's auditors for tax services.