Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Administrative Fee, Related Party					$ 2,500
Omnibus Agreement G & A Expenses, Related Party	$ 600				1,200
Revenue from related parties	79,179			$ 68,297	162,025	$ 140,552
Employee expenses reimbursed to related party	9,500			7,500	19,400	16,200
Reimbursements received from related parties	5,000			4,400	6,700	7,000
Accounts receivable due from HFC	42,800		$ 32,500		42,800
Accounts payable to HFC	9,182		11,635		9,182
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Other Commitments, Future Minimum Payments, Remainder of Fiscal Year	261,400				261,400
Distributions to HEP unitholders	$ 25,300			$ 22,300	49,800	43,900
Shortfall Payments [Member]
Related Party Transaction [Line Items]
Shortfall Payments, Revenue Recognized					5,500	$ 6,000
Shortfall Billings Deferred Revenue			$ 6,400		$ 3,200
Osage Pipeline [Member] [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage		50.00%
Tulsa Tanks [Member]
Related Party Transaction [Line Items]
El Dorado crude tanks, Plains acquisition		$ 39,500