Organization and Basis of Presentation (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Apr. 19, 2019	Aug. 07, 2018 $ / shares shares	Dec. 31, 2019 USD ($) item $ / shares shares	Aug. 30, 2019	Jul. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Organization
Number of owned, leased and/or supplied gasoline stations | item			1,551
Number of convenience stores | item			289
Number of units held | shares			33,995,563
Initial distribution rate (as a percentage)		9.75%
Liquidation preference (in dollars per unit) | $ / shares			$ 25.00
Senior Notes 7.00 Percent Due 2027 [Member]
Organization
Aggregate principal amount | $			$ 400,000		$ 400,000
Stated interest rate (as a percent)			7.00%		7.00%
Senior Notes 6.25 Percent Due 2022
Organization
Aggregate principal amount | $						$ 375,000
Stated interest rate (as a percent)			6.25%	6.25%
Revolving Credit Facility [Member]
Organization
Reduction in applicable rate (as a percent)	0.25%
Series A Preferred Limited Partners
Organization
Number of units sold | shares		2,760,000
Initial distribution rate (as a percentage)			9.75%
Liquidation preference (in dollars per unit) | $ / shares			$ 25.00
Sale price (in dollars per unit) | $ / shares		$ 25.00
Global Partners LP [Member]
Organization
General partner interest (as a percent)			0.67%
Limited partner ownership interest (as a percent)			99.33%
Affiliates of general partner
Organization
Number of units held | shares			7,402,198
Affiliates of general partner | Global Partners LP [Member]
Organization
Limited partner ownership interest (as a percent)			21.80%