Represents the percentage ownership interest held in the entity.

No definition available.

Name:	glp_PercentageOwnershipInterestHeld
Namespace Prefix:	glp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Annual amount of transactions with related party.

+ References

No definition available.

+ Details

Name:	glp_RelatedPartyTransactionAnnualAmountsOfTransaction
Namespace Prefix:	glp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the notice period that is required to terminate the receipt of some or all of the services under the agreement with the related party.

+ References

No definition available.

+ Details

Name:	glp_RelatedPartyTransactionNoticePeriodToTerminateReceiptOfServicesUnderAgreement
Namespace Prefix:	glp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	glp_RelatedPartyTransactionsAggregateDisclosureAbstract
Namespace Prefix:	glp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph a

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 2

-Article 4

+ Details

Name:	us-gaap_DueFromRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=glp_AEHoldingsCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=glp_GlobalPetroleumCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_GeneralPartnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related-Party Transactions (Details) (USD $)	3 Months Ended
Related-Party Transactions (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Information on related party transaction
Receivables from related parties	$ 3,845,000us-gaap_DueFromRelatedPartiesCurrent		$ 3,903,000us-gaap_DueFromRelatedPartiesCurrent
GPC
Information on related party transaction
Receivables from related parties			108,000
GPC \| Second amended and restated terminal storage rental and throughput agreement \| Members of Slifka family
Related Party Transactions
Percentage ownership interest	100.00%
GPC \| Amended and restated services agreement
Information on related party transaction
Income from services provided to related parties	8,000	24,000
AE Holdings \| Shared services agreement \| Global Companies LLC
Information on related party transaction
Amount to be paid per year	15,000
Notice period to terminate the receipt of services under the agreement	90 days
General Partner Interest
Information on related party transaction
Expenses incurred from transactions with related parties	29,400,000	19,000,000
Receivables from related parties	3,845,000		3,795,000
General Partner Interest \| Second amended and restated terminal storage rental and throughput agreement \| Members of Slifka family
Information on related party transaction
Expenses incurred from transactions with related parties	$ 800,000	$ 2,300,000