Organization and Basis of Presentation (Details)																						12 Months Ended
	Nov. 14, 2024 $ / shares	Aug. 14, 2024 $ / shares	May 15, 2024 $ / shares	Apr. 15, 2024 $ / shares shares	Feb. 15, 2024 $ / shares	Feb. 14, 2024 $ / shares	Nov. 15, 2023 $ / shares	Nov. 14, 2023 $ / shares	Aug. 15, 2023 $ / shares	Aug. 14, 2023 $ / shares	May 15, 2023 $ / shares	Feb. 15, 2023 $ / shares	Feb. 14, 2023 $ / shares	Nov. 15, 2022 $ / shares	Nov. 14, 2022 $ / shares	Aug. 15, 2022 $ / shares	Aug. 12, 2022 $ / shares	May 16, 2022 $ / shares	May 13, 2022 $ / shares	Feb. 15, 2022 $ / shares	Feb. 14, 2022 $ / shares	Dec. 31, 2024 USD ($) location store shares	Apr. 09, 2024 item	Feb. 08, 2024 USD ($)	Feb. 05, 2024 USD ($)	Feb. 04, 2024 USD ($)	Jan. 18, 2024 USD ($)	Dec. 31, 2023 USD ($) shares
Organization and Basis of Presentation
Number of owned, leased and/or supplied gasoline stations																						1,584
Number of convenience stores | store																						300
Per Unit Cash Distribution (in dollars per unit) | $ / shares	$ 0.73	$ 0.72	$ 0.71			$ 0.7		$ 0.685		$ 0.675	$ 0.655		$ 1.5725		$ 0.625		$ 0.605		$ 0.595		$ 0.585
Total available commitments																						$ 1,550,000,000		$ 1,550,000,000				$ 1,750,000,000
Debt Instruments [Abstract]
Aggregate principal amount																											$ 450,000,000
Spring Partners Retail LLC
Organization and Basis of Presentation
Number of Gasoline Stations Operated by Affiliate | location																						64
Credit Agreement
Organization and Basis of Presentation
Total available commitments																						$ 1,550,000,000		1,550,000,000	$ 0	$ 200,000,000
Working Capital Facility
Organization and Basis of Presentation
Amount of borrowing capacity reallocated to another credit facility																									300,000,000
Total available commitments																						950,000,000			$ 950,000,000
Non Working Capital Facility
Organization and Basis of Presentation
Total available commitments																						600,000,000		$ 600,000,000
Senior Notes 8.250 Percent Due 2032
Debt Instruments [Abstract]
Aggregate principal amount																						$ 450,000,000					$ 450,000,000
Stated interest rate (as a percent)																						8.25%					8.25%
Global Partners LP | Affiliates of general partner
Organization and Basis of Presentation
Limited partner ownership interest (as a percent)																						19.80%
Gulf Oil Limited Partnership
Organization and Basis of Presentation
Number of terminals acquired | item																							4
ExxonMobil Oil Corporation
Organization and Basis of Presentation
Number of terminals acquired | item																							1
Common Limited Partners
Organization and Basis of Presentation
Number of units held | shares																						33,668,256						33,882,357
Common Limited Partners | Affiliates of general partner
Organization and Basis of Presentation
Number of units held | shares																						6,415,996
Series A Preferred Limited Partners
Organization and Basis of Presentation
Number of units held | shares				0																		0						2,760,000
Limited Partnership Units Redemption Price | $ / shares				$ 25
Per Unit Cash Distribution (in dollars per unit) | $ / shares				$ 0.514275	$ 0.77596		$ 0.77501		$ 0.609375		$ 0.609375	$ 0.609375		$ 0.609375		$ 0.609375		$ 0.609375		$ 0.609375
General Partner
Organization and Basis of Presentation
Number of units held | shares																						327,307
General Partner | Global Partners LP
Organization and Basis of Presentation
General partner interest (as a percent)																						0.67%