Financial Instruments (Estimated Fair Values Of Debt Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 96,629	$ 1,670
Derivative Liability, Fair Value, Gross Liability	19,998	65,375
Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	848,363	770,114
Derivative Liability, Fair Value, Gross Liability	532,344	688,416
Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	848,363	770,114
Derivative Liability, Fair Value, Gross Liability	561,612	721,732
Level 1 [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability		0
Level 1 [Member] | Carrying Amount [Member] | Holly Frontier [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	0
Level 1 [Member] | Carrying Amount [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	0
Derivative Liability, Fair Value, Gross Liability	0	0
Level 1 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Derivative Liability, Fair Value, Gross Liability	3,450	3,569
Level 2 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	827,161	763,142
Derivative Liability, Fair Value, Gross Liability	514,487	675,873
Level 3 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	21,202	6,972
Derivative Liability, Fair Value, Gross Liability	43,675	42,290
Marketable Securities [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	715,518	725,160
Marketable Securities [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	715,518	725,160
Marketable Securities [Member] | Level 2 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	715,518	725,160
Nymex Futures Contracts [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	3,450	3,569
Nymex Futures Contracts [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	3,450	3,569
Nymex Futures Contracts [Member] | Level 1 [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	3,450	3,569
Nymex Futures Contracts [Member] | Level 2 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	0
Nymex Futures Contracts [Member] | Level 3 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	0
Commodity Price Swaps [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	129,128	43,284
Derivative Liability, Fair Value, Gross Liability	76,297	83,349
Commodity Price Swaps [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	129,128	43,284
Derivative Liability, Fair Value, Gross Liability	76,297	83,349
Commodity Price Swaps [Member] | Level 2 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	110,015	36,312
Derivative Liability, Fair Value, Gross Liability	32,622	41,059
Commodity Price Swaps [Member] | Level 3 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	19,113	6,972
Derivative Liability, Fair Value, Gross Liability	43,675	42,290
Commodity Contract [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,089
Commodity Contract [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,089
Commodity Contract [Member] | Level 2 [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	0
Commodity Contract [Member] | Level 3 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,089
HEP Interest Rate Swap [Member] | Carrying Amount [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,628	1,670
Derivative Liability, Fair Value, Gross Liability	1,677	1,814
HEP Interest Rate Swap [Member] | Fair Value [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,628	1,670
Derivative Liability, Fair Value, Gross Liability	1,677	1,814
HEP Interest Rate Swap [Member] | Level 2 [Member] | Fair Value [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,628	1,670
Derivative Liability, Fair Value, Gross Liability	1,677	1,814
Senior Notes [Member] | Carrying Amount [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	154,830	155,054
Senior Notes [Member] | Carrying Amount [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	296,090	444,630
Senior Notes [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	160,688	161,250
Senior Notes [Member] | Fair Value [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	319,500	471,750
Senior Notes [Member] | Level 2 [Member] | Fair Value [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	160,688	161,250
Senior Notes [Member] | Level 2 [Member] | Fair Value [Member] | HEP [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 319,500	$ 471,750