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Namespace Prefix:	glop_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of common units in public offering or general partner units

No definition available.

Name:	glop_NumberOfCommonOrGeneralPartnerUnitsInPublicOffering
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Data Type:	xbrli:sharesItemType
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Number of units issued in settlement of awards vested during the period.

No definition available.

Name:	glop_NumberOfUnitsIssuedInSettlementOfAwardsVestedDuringPeriod
Namespace Prefix:	glop_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of units issued upon conversion of convertible units.

No definition available.

Name:	glop_NumberOfUnitsIssuedUponConversions
Namespace Prefix:	glop_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

General partner interest and percentage of the Partnership's cash distributions.

No definition available.

Name:	glop_OwnersProportionOfInterestInEntity
Namespace Prefix:	glop_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Remaining authorized amount of equity programme

No definition available.

Name:	glop_RemainingAuthorizedAmountOfEquityProgramme
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Data Type:	xbrli:monetaryItemType
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Per share amount received for each share of unit issued or sold in the equity offering.

No definition available.

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Namespace Prefix:	glop_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard
-URIDate 2023-03-23

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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The cash inflow from issuing shares.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2023-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2023-03-23

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

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Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=glop_PerformanceCommonUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	dei_LegalEntityAxis=ifrs-full_ParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	glop_IfrsSaleOfStockAxis=glop_AtMarketProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_ClassesOfShareCapitalAxis=glop_CommonUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=glop_LongTermIncentivePlan2015Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Namespace Prefix:
Data Type:	na
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