Related Party Transactions (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Annual Administrative Fee [Member]	Sep. 30, 2014 Annual Administrative Fee [Member]	Sep. 30, 2014 Reimbursements Paid [Member]	Sep. 30, 2013 Reimbursements Paid [Member]	Sep. 30, 2014 Reimbursements Paid [Member]	Sep. 30, 2013 Reimbursements Paid [Member]	Sep. 30, 2014 Proceeds From Reimbursements Received [Member]	Sep. 30, 2013 Proceeds From Reimbursements Received [Member]	Sep. 30, 2014 Proceeds From Reimbursements Received [Member]	Sep. 30, 2013 Proceeds From Reimbursements Received [Member]	Sep. 30, 2014 Affiliated Entity [Member]	Sep. 30, 2013 Affiliated Entity [Member]	Sep. 30, 2014 Affiliated Entity [Member]	Sep. 30, 2013 Affiliated Entity [Member]	Dec. 31, 2013 Affiliated Entity [Member]	Sep. 30, 2014 Shortfall Payments [Member]	Dec. 31, 2013 Shortfall Payments [Member]	Sep. 30, 2014 Shortfall Payments [Member]
Related Party Transaction [Line Items]
Minimum annualized payments receivable from affiliate																$ 236,200,000		$ 236,200,000
Expenses resulting from agreement with related party							2,300,000
Revenue from related parties	67,450,000	65,523,000	203,762,000	190,222,000																	600,000		8,200,000
Costs and Expenses, Related Party						600,000	1,700,000
Reimbursements paid to related parties								(9,900,000)	(5,900,000)	(28,700,000)	(25,000,000)	3,100,000	5,800,000	11,600,000	15,100,000
Payroll tax refund											3,500,000
Distributions to HEP unitholders			(114,680,000)	(103,016,000)												(20,400,000)	(18,000,000)	(59,500,000)	(52,800,000)
Due from Affiliates	30,211,000		30,211,000		29,675,000											30,200,000		30,200,000		29,700,000
Due to Affiliate, Current	4,293,000		4,293,000		8,484,000											4,300,000		4,300,000		8,500,000
Deferred revenue, related parties																						$ 10,100,000	$ 7,500,000