Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Operating revenues	$ 3,579,259	$ 1,932,323	$ 2,149,429
Cost of sales	3,302,306	1,720,196	1,994,792
Gross profit	276,953	212,127	154,637
Income from CST Fuel Supply equity interests		3,202	14,768
Operating expenses:
Operating expenses	134,079	90,928	52,554
General and administrative expenses	30,930	20,991	16,849
Depreciation, amortization and accretion expense	77,852	68,742	55,032
Total operating expenses	242,861	180,661	124,435
Gain (loss) on dispositions and lease terminations, net	2,037	80,924	(1,648)
Operating income	36,129	115,592	43,322
Other income, net	544	503	524
Interest expense	(18,244)	(16,587)	(27,000)
Income before income taxes	18,429	99,508	16,846
Income tax benefit	(3,225)	(7,948)	(1,230)
Net income	21,654	107,456	18,076
IDR distributions		(133)	(533)
Net income available to limited partners	$ 21,654	$ 107,323	$ 17,543
Basic and diluted earnings per common unit	$ 0.57	$ 2.87	$ 0.51
Weighted-average limited partner units:
Basic common units	37,880,910	37,369,487	34,454,369
Diluted common units	37,884,124	37,369,487	34,484,801
Supplemental information:
(a) Includes excise taxes of:	$ 228,764	$ 141,429	$ 78,004
(a) Includes rent income of:	83,182	83,233	90,139
(b) excludes depreciation, amortization and accretion and includes rent expense of:	23,765	25,214	27,493
(c) Includes rent expense of:	$ 13,531	$ 9,067	$ 379