Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Operating revenues		$ 471,786	$ 554,570
Costs of sales		434,709	514,619
Gross profit		37,077	39,951
Income from CST Fuel Supply equity interests		3,426	3,805
Operating expenses:
Operating expenses		15,353	16,342
General and administrative expenses		4,418	4,720
Depreciation, amortization and accretion expense		13,061	15,500
Total operating expenses		32,832	36,562
(Loss) gain on dispositions and lease terminations, net		(59)	230
Operating income	[1]	7,612	7,424
Other income, net		86	94
Interest expense		(7,337)	(8,052)
Income (loss) before income taxes		361	(534)
Income tax expense		149	273
Net income (loss)		212	(807)
Less: net loss attributable to noncontrolling interests			(2)
Net income (loss) attributable to limited partners		212	(805)
IDR distributions		(133)	(1,180)
Net income (loss) available to limited partners		$ 79	$ (1,985)
Basic and diluted income (loss) per limited partner unit		$ 0.00	$ (0.06)
Weighted-average limited partner units:
Basic common units		34,444,113	34,157,088
Diluted common units		34,456,465	34,165,060
Supplemental information:
(a) Includes excise taxes of:		$ 20,444	$ 24,358
(a) Includes revenues from fuel sales to and rental income from related parties of:		$ 73,627	$ 103,521

[1] As discussed in Note 1, as a result of the adoption of ASC 842, operating income for the three months ended March 31, 2019 is not comparable to operating income for the three months ended March 31, 2018. Most significantly, payments on our previous failed sale-leaseback obligations were characterized as principal and interest expense in periods prior to 2019. Starting in 2019, these payments are characterized as rent expense and thus reduce operating income. These payments for the three months ended March 31, 2018 amounted to approximately $1.7 million and $0.1 million for the Wholesale and Retail segments, respectively.