Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
		Feb. 05, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Feb. 04, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues			$ 127,731	$ 135,895	$ 370,392	$ 401,143
Operating Income (Loss)			23,553	64,136	142,247	198,584
Segment operating profit			25,885	66,850	149,816	205,906
Unallocated general and administrative			(2,332)	(2,714)	(7,569)	(7,322)
Interest and financing costs, net			(11,301)	(16,564)	(37,816)	(53,737)
Gain (Loss) on Extinguishment of Debt		$ 25,900	0	0	(25,915)	0
Equity in earnings of unconsolidated affiliates			1,316	1,334	5,186	5,217
Gain on Sales-type Leases			0	35,166	33,834	35,166
Gain (loss) on sale of assets and other			7,465	142	8,439	(57)
Income before income taxes			21,033	84,214	125,975	185,173
Capital Expenditures			7,902	6,076	38,642	23,828
Assets			2,161,885		2,161,885			$ 2,199,232
Goodwill			234,684		234,684			$ 270,336
Five Percent Senior Notes Due Two Thousand Twenty Eight [Member]
Segment Reporting Information [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.00%	5.00%
6% Senior notes
Segment Reporting Information [Line Items]
Debt Instrument, Interest Rate, Stated Percentage								6.00%
Pipelines and terminal - affiliate
Segment Reporting Information [Line Items]
Revenues			80,589	85,749	238,123	250,259
Pipelines and terminals - third party
Segment Reporting Information [Line Items]
Revenues			26,739	29,868	72,409	89,388
Operating Income (Loss)			15,912	56,944	120,445	178,112
Capital Expenditures			7,902	5,320	38,318	23,072
Assets	[1]		1,712,033		1,712,033			$ 1,749,843
Refinery processing units
Segment Reporting Information [Line Items]
Revenues			20,403	20,278	59,860	61,496
Operating Income (Loss)			9,973	9,906	29,371	27,794
Capital Expenditures			0	$ 756	324	$ 756
Assets			305,999		305,999			305,897
Other
Segment Reporting Information [Line Items]
Assets			$ 143,853		$ 143,853			$ 143,492

[1] Includes goodwill of $234.7 million as of September 30, 2020 and $270.3 million as of December 31, 2019.