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Holly Energy Partners (Details) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Mar. 31, 2013
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
HEP [Member]
Customers
Mar. 31, 2013
HEP [Member]
Jun. 30, 2013
HEP [Member]
Jun. 30, 2013
UNEV Pipeline [Member]
Jun. 30, 2013
UNEV Pipeline [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           $ 225,500,000    
Percentage of interest owned In pipeline project             75.00% 75.00%
Sale of Stock, Number of Shares Issued in Transaction 1,875,000       1,875,000      
Proceeds from Issuance of Common Limited Partners Units   73,444,000 0     73,444,000    
Proceeds from Issuance of Common Stock $ 73,400,000 $ 73,444,000 $ 0     $ 73,444,000