Represents the minimum increase in amount borrowed as requested by the borrowers.

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility, including the accordion feature, without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

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- Definition

Represents the number of line of credit facilities provided.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a revolving credit facility used for acquisitions and general corporate purposes.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount, which includes letter of credit and working capital revolving credit arrangements, under which borrowings can be made up to a maximum amount at any point of time, subject to satisfaction of specified terms before, as of and after the date of drawdown's on the line.

+ References

No definition available.

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- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
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-Paragraph 2
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-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
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- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Paragraph 1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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Data Type:	na
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- Details

Name:	us-gaap_DebtInstrumentAxis=glp_CreditFacilityAccordionFeatureMember
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- Details

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Debt and Financing Obligations - Credit Facility (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) item	Mar. 31, 2024	Mar. 20, 2025 USD ($)	Mar. 19, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt and Financing Obligations
Total available commitments	$ 1,500,000				$ 1,550,000
Working capital revolving credit facility-current portion	254,700				129,500
Working capital revolving credit facility-less current portion	100,000				100,000
Revolving credit facility	167,000				167,000
Total borrowings outstanding	521,700				396,500
Less outstanding letters of credit	64,000				100,200
Total remaining availability for borrowings and letters of credit	914,300				$ 1,053,300
Credit Agreement
Debt and Financing Obligations
Total available commitments	$ 1,500,000
Number of line of credit facilities \| item	2
Total available commitments including accordion	$ 1,800,000
Average interest rates (as a percent)	6.60%	7.40%
Working Capital Facility
Debt and Financing Obligations
Total available commitments	$ 1,000,000		$ 1,000,000	$ 950,000
Long-term portion	100,000
Non Working Capital Facility
Debt and Financing Obligations
Total available commitments	500,000		$ 500,000	$ 600,000
Credit Facility Accordion Feature
Debt and Financing Obligations
Total available commitments	300,000
Accordion, minimum draw	25,000
General Secured Indebtedness Basket
Debt and Financing Obligations
Total available commitments	35,000
General Investment Basket
Debt and Financing Obligations
Total available commitments	30,000
Secured Indebtedness
Debt and Financing Obligations
Total available commitments	100,000
Credit Facility Swingline Feature
Debt and Financing Obligations
Total available commitments	100,000
Sale Leaseback Transaction
Debt and Financing Obligations
Total available commitments	150,000
Basket For Purchase Of Common Units Of Partnership
Debt and Financing Obligations
Total available commitments	$ 150,000