Borrowings (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Borrowings
Amounts due within one year	$ 93,964
Less: unamortized deferred loan issuance costs	(3,606)
Borrowings - current portion	90,358
Amounts due after one year	837,186
Less: unamortized deferred loan issuance costs	(5,598)
Borrowings - non-current portion	831,588
Total	$ 921,946

Current Borrowings And Current Portion Of Non Current Borrowings Before Unamortised Costs

No definition available.

Name:	glop_CurrentBorrowingsAndCurrentPortionOfNonCurrentBorrowingsBeforeUnamortisedCosts
Namespace Prefix:	glop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The information pertaining to current portion of unamortized deferred loan issuance costs.

+ References

No definition available.

+ Details

Name:	glop_CurrentPortionOfUnamortizedDeferredLoanIssuanceCosts
Namespace Prefix:	glop_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The information pertaining to non-current portion of non-current borrowings before unamortised costs.

+ References

No definition available.

+ Details

Name:	glop_NonCurrentPortionOfNonCurrentBorrowings
Namespace Prefix:	glop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The information pertaining to non-current portion of unamortized deferred loan issuance costs.

+ References

No definition available.

+ Details

Name:	glop_NonCurrentPortionOfUnamortizedDeferredLoanIssuanceCosts
Namespace Prefix:	glop_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

+ Details

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

- Definition

The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

+ References

+ Details

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

- References

No definition available.

+ Details

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

- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

+ Details

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