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Significant Accounting Policies - Segment information (Details) | 12 Months Ended
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Dec. 31, 2022 item
Significant Accounting Policies |
Number of LNG carriers owned by each vessel-owning company | 1

X
- Definition Represents the number of LNG carrier each vessel-owning company has. + References No definition available. + Details
Name: | glop_NumberOfLngCarrierEachVesselOwningCompany
Namespace Prefix: | glop_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | glop_SignificantAccountingPoliciesAbstract
Namespace Prefix: | glop_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration