Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Affiliates	$ 275,196	$ 252,368	$ 245,582
Third parties	57,349	52,814	46,978
Total revenues	332,545	305,182	292,560
Operating costs and expenses:
Operations (exclusive of depreciation and amortization)	104,801	99,444	89,242
Depreciation and amortization	62,166	65,423	57,461
General and administrative	10,824	11,749	7,594
Total operating costs and expenses	177,791	176,616	154,297
Operating income	154,754	128,566	138,263
Other income (expense):
Equity in earnings of SLC Pipeline	0	0	0
Interest expense	(36,101)	(47,010)	(47,182)
Interest Income	3	161	0
Loss on early extinguishment of debt	(7,677)	0	(2,979)
Gain on sale of assets	0	1,810	0
Other Income	82	61	10
Total other income (expense)	(40,706)	(42,152)	(46,787)
Income before Income Taxes	114,048	86,414	91,476
State income tax expense	(235)	(333)	(371)
Net Income	113,813	86,081	91,105
Allocation of net loss attributable to Predecessors	0	0	4,200
Allocation of net income (loss) attributable to noncontrolling interest	(8,288)	(6,632)	(1,153)
Net income attributable to Holly Energy Partners	105,525	79,449	94,152
General partner interest in net income, including incentive distributions	(34,667)	(27,523)	(22,450)
Limited partners’ interest in net income	70,858	51,926	71,702
Limited partners’ per unit interest in earnings—basic and diluted:	$ 1.20	$ 0.88	$ 1.29
Weighted average limited partners’ units outstanding	58,657	58,246	55,696
SLC Pipeline [Member]
Other income (expense):
Equity in earnings of SLC Pipeline	$ 2,987	$ 2,826	$ 3,364