Name:	glop_VestingLifeOfShareBasedAwards
Namespace Prefix:	glop_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The percentage of awards that vest upon achievement of benchmarked in a share-based payment arrangement.

No definition available.

Name:	glop_VestingPercentageOnBenchmarkedAchievementInShareBasedPaymentArrangement
Namespace Prefix:	glop_
Data Type:	dtr-types:percentItemType
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.

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The weighted average fair value at the measurement date of granted equity instruments other than share options. [Refer: Weighted average [member]]

Name:	ifrs-full_WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=glop_RestrictedCommonUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

Name:	glop_PerformanceAwardsBenchmarkAxis=glop_TotalUnitholderReturnAchievedAbove75thPercentileOfPeerGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	glop_PerformanceAwardsBenchmarkAxis=glop_TotalUnitholderReturnAchievedBetween50thTo75thPercentileOfPeerGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: