Holly Energy Partners (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Customers	Mar. 31, 2013
Variable Interest Entity [Line Items]
Sale of Stock, Number of Shares Issued in Transaction		1,875,000
Proceeds from Issuance of Common Stock		$ 73.4
HEP [Member]
Variable Interest Entity [Line Items]
Percentage of general partner interest	2.00%
Number of primary customers	2
Percentage of revenue Holly Corp represents	83.00%
Percentage of ownership in variable interest entity	39.00%
Annual contract payment	$ 225.5
Sale of Stock, Number of Shares Issued in Transaction		1,875,000