Supplemental Guarantor / Non-Guarantor Financial Information Condensed Consolidating Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 39,016	$ 30,849	[1]
Cash flows from investing activities
Additions to properties and equipment	(20,604)	(6,645)
Distributions from UNEV joint venture partners	0
Proceeds from sale of assets	0	2,481
Distributions in excess of equity in earnings of SLC Pipeline	40	30
Net Cash Provided by (Used in) Investing Activities	(20,564)	(4,134)
Repayments of Long-term Lines of Credit		53,000
Proceeds from Long-term Lines of Credit	(174,700)
Cash flows from financing activities
Net Intercompany Financing Activities	0	0	[1]
Proceeds from Issuance of Common Units	0	73,444
Contribution from general partner	0	1,499
Redemption of senior notes	(156,188)	0
Distributions to HEP unitholders	(37,342)	(32,709)
Distributions to UNEV joint venture partners	(750)
Deferred financing costs	(9)	0
Purchase of units for incentive grants	(336)	(2,719)
Other	0	(274)
Net cash used for financing activities	(19,925)	(13,759)
Increase (decrease) for the period	(1,473)	12,956
Beginning of period	6,352	5,237
End of period	4,879	18,193
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(16,085)	(18,763)	[1]
Cash flows from investing activities
Additions to properties and equipment	0	0
Distributions from UNEV joint venture partners	0
Proceeds from sale of assets		0
Distributions in excess of equity in earnings of SLC Pipeline	0	0
Net Cash Provided by (Used in) Investing Activities	0	0
Repayments of Long-term Lines of Credit		0
Proceeds from Long-term Lines of Credit	0
Cash flows from financing activities
Net Intercompany Financing Activities	209,951	(20,478)	[1]
Proceeds from Issuance of Common Units		73,444
Contribution from general partner		1,499
Redemption of senior notes	(156,188)
Distributions to HEP unitholders	(37,342)	(32,709)
Distributions to UNEV joint venture partners	0
Deferred financing costs	0
Purchase of units for incentive grants	(336)	(2,719)
Other		(274)
Net cash used for financing activities	16,085	18,763
Increase (decrease) for the period	0	0
Beginning of period	2	2
End of period	2	2
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	48,054	41,244	[1]
Cash flows from investing activities
Additions to properties and equipment	(16,954)	(6,422)
Distributions from UNEV joint venture partners	2,250
Proceeds from sale of assets		2,481
Distributions in excess of equity in earnings of SLC Pipeline	40	(30)
Net Cash Provided by (Used in) Investing Activities	(14,664)	(3,911)
Repayments of Long-term Lines of Credit		53,000
Proceeds from Long-term Lines of Credit	(174,700)
Cash flows from financing activities
Net Intercompany Financing Activities	(209,951)	20,478	[1]
Proceeds from Issuance of Common Units		0
Contribution from general partner		0
Redemption of senior notes	0
Distributions to HEP unitholders	0	0
Distributions to UNEV joint venture partners	0
Deferred financing costs	(9)
Purchase of units for incentive grants	0	0
Other		0
Net cash used for financing activities	(35,260)	(32,522)
Increase (decrease) for the period	(1,870)	4,811
Beginning of period	1,447	823
End of period	(423)	5,634
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	7,047	8,368	[1]
Cash flows from investing activities
Additions to properties and equipment	(3,650)	(223)
Distributions from UNEV joint venture partners	0
Proceeds from sale of assets		0
Distributions in excess of equity in earnings of SLC Pipeline	0	0
Net Cash Provided by (Used in) Investing Activities	(3,650)	(223)
Repayments of Long-term Lines of Credit		0
Proceeds from Long-term Lines of Credit	0
Cash flows from financing activities
Net Intercompany Financing Activities	0	0	[1]
Proceeds from Issuance of Common Units		0
Contribution from general partner		0
Redemption of senior notes	0
Distributions to HEP unitholders	0	0
Distributions to UNEV joint venture partners	(3,000)
Deferred financing costs	0
Purchase of units for incentive grants	0	0
Other		0
Net cash used for financing activities	(3,000)	0
Increase (decrease) for the period	397	8,145
Beginning of period	4,903	4,412
End of period	5,300	12,557
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0	0	[1]
Cash flows from investing activities
Additions to properties and equipment	0	0
Distributions from UNEV joint venture partners	(2,250)
Proceeds from sale of assets		0
Distributions in excess of equity in earnings of SLC Pipeline	0	0
Net Cash Provided by (Used in) Investing Activities	(2,250)	0
Repayments of Long-term Lines of Credit		0
Proceeds from Long-term Lines of Credit	0
Cash flows from financing activities
Net Intercompany Financing Activities	0	0	[1]
Proceeds from Issuance of Common Units		0
Contribution from general partner		0
Redemption of senior notes	0
Distributions to HEP unitholders	0	0
Distributions to UNEV joint venture partners	2,250
Deferred financing costs	0
Purchase of units for incentive grants	0	0
Other		0
Net cash used for financing activities	2,250	0
Increase (decrease) for the period	0	0
Beginning of period	0	0
End of period	$ 0	$ 0

[1] (1) Effective with fiscal year 2013, we changed the cash flow presentation of transactions associated with the partnership's intercompany lending activities by reclassifying certain amounts from operating cash flows to financing cash flows.