Related-Party Transactions - Additional Information (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 25, 2012 store	Sep. 30, 2016 USD ($) store	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) store agreement $ / gal	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Related Party Transaction [Line Items]
Related products purchase agreements | agreement				2
Purchase agreements renewal term				12 months
Advances from affiliates		$ 62,716		$ 62,716		$ 0
Repayment of Line of credit				1,692,224	$ 513,046
Receivables from affiliates		8,790		8,790		8,074
Accounts payable to affiliates		31,635		31,635		14,988
Motor fuel sales to affiliates		$ 28,226	$ 3,779	45,065	8,718
2014 Revolver [Member]
Related Party Transaction [Line Items]
Repayment of Line of credit				$ 175,000
Philadelphia Energy Solutions Refining and Marketing [Member]
Related Party Transaction [Line Items]
Related products purchase agreements | agreement				1
Merrill Lynch Commodities [Member]
Related Party Transaction [Line Items]
Related products purchase agreements | agreement				1
Susser [Member]
Related Party Transaction [Line Items]
Distribution agreement term				10 years
Profit margin | $ / gal				0.03
Purchase option term	3 years
Number of convenience stores | store	75
Commercial agreement, initial term	15 years
Exclusive distributor, term	10 years
Number of convenience stores, sale lease back transactions completed | store		75		75
Sunoco Retail LLC [Member]
Related Party Transaction [Line Items]
Distribution agreement term				10 years
Profit margin | $ / gal				0.04
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Receivables from affiliates		$ 8,800		$ 8,800		8,100
Accounts payable to affiliates		31,600		31,600		15,000
Motor fuel sales to affiliates		28,200	3,800	45,100	8,700
Bulk fuel purchase from affiliates		493,500	$ 549,000	1,400,000	$ 2,000,000
Affiliated Entity [Member] | Sunoco LLC [Member]
Related Party Transaction [Line Items]
Advances to affiliates						$ 365,500
Advances from affiliates		$ 62,700		$ 62,700