Supplemental Guarantor/Non-Guarantor Financial Information Consolidating Statement of Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	$ 3,006,626us-gaap_RefiningAndMarketingRevenue	$ 4,791,053us-gaap_RefiningAndMarketingRevenue
Cost of products sold	2,251,373us-gaap_RefiningAndMarketingCosts	4,138,620us-gaap_RefiningAndMarketingCosts
Lower of cost or market inventory valuation adjustment	(6,546)	0
Operating Costs and Expenses	263,596us-gaap_OperatingCostsAndExpenses	273,966us-gaap_OperatingCostsAndExpenses
General and administrative	29,569us-gaap_GeneralAndAdministrativeExpense	26,923us-gaap_GeneralAndAdministrativeExpense
Depreciation and amortization	80,012	80,548
Total operating costs and expenses	2,618,004us-gaap_CostsAndExpenses	4,520,057us-gaap_CostsAndExpenses
Income (loss) from operations	388,622us-gaap_OperatingIncomeLoss	270,996us-gaap_OperatingIncomeLoss
Earnings (loss) of equity method investments	(7,807)	(801)
Interest income (expense)	(9,192)us-gaap_InterestIncomeExpenseNet	(10,942)us-gaap_InterestIncomeExpenseNet
Loss on early extinguishment of debt	0	(7,677)
Gain on sale of assets	766us-gaap_GainLossOnDispositionOfAssets1	0us-gaap_GainLossOnDispositionOfAssets1
Nonoperating Income (Expense)	(16,233)us-gaap_NonoperatingIncomeExpense	(19,420)us-gaap_NonoperatingIncomeExpense
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	372,389	251,576
Income tax provision	129,728us-gaap_IncomeTaxExpenseBenefit	87,614us-gaap_IncomeTaxExpenseBenefit
Net income	242,661us-gaap_ProfitLoss	163,962us-gaap_ProfitLoss
Less net income attributable to noncontrolling interest	15,785	11,901
Net income attributable to HollyFrontier stockholders	226,876us-gaap_NetIncomeLoss	152,061us-gaap_NetIncomeLoss
Comprehensive income attributable to HollyFrontier stockholders	215,354us-gaap_ComprehensiveIncomeNetOfTax	205,303us-gaap_ComprehensiveIncomeNetOfTax
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	106	101
Cost of products sold	0	0
Lower of cost or market inventory valuation adjustment	0
Operating Costs and Expenses	0	0
General and administrative	25,824	21,107
Depreciation and amortization	2,326	1,790
Total operating costs and expenses	28,150	22,897
Income (loss) from operations	(28,044)	(22,796)
Earnings (loss) of equity method investments	384,401	262,359
Interest income (expense)	(302)	(424)
Loss on early extinguishment of debt		0
Gain on sale of assets	6
Nonoperating Income (Expense)	384,105	261,935
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	356,061	239,139
Income tax provision	129,627	87,539
Net income	226,434	151,600
Less net income attributable to noncontrolling interest	0	0
Net income attributable to HollyFrontier stockholders	226,434	151,600
Comprehensive income attributable to HollyFrontier stockholders	214,912	204,842
Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	2,989,392	4,775,123
Cost of products sold	2,322,881	4,209,722
Lower of cost or market inventory valuation adjustment	(6,546)
Operating Costs and Expenses	236,003	251,476
General and administrative	415	2,626
Depreciation and amortization	66,924	67,107
Total operating costs and expenses	2,619,677	4,530,931
Income (loss) from operations	369,715	244,192
Earnings (loss) of equity method investments	12,035	16,022
Interest income (expense)	2,049	2,145
Loss on early extinguishment of debt		0
Gain on sale of assets	602
Nonoperating Income (Expense)	14,686	18,167
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	384,401	262,359
Income tax provision	0	0
Net income	384,401	262,359
Less net income attributable to noncontrolling interest	0	0
Net income attributable to HollyFrontier stockholders	384,401	262,359
Comprehensive income attributable to HollyFrontier stockholders	365,536	349,384
Non Guarantor Restricted Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	0	971
Cost of products sold	0	0
Lower of cost or market inventory valuation adjustment	0
Operating Costs and Expenses	0	0
General and administrative	40	39
Depreciation and amortization	8	0
Total operating costs and expenses	48	39
Income (loss) from operations	(48)	932
Earnings (loss) of equity method investments	20,442	16,283
Interest income (expense)	175	130
Loss on early extinguishment of debt		0
Gain on sale of assets	0
Nonoperating Income (Expense)	20,617	16,413
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	20,569	17,345
Income tax provision	0	0
Net income	20,569	17,345
Less net income attributable to noncontrolling interest	(7)	0
Net income attributable to HollyFrontier stockholders	20,576	17,345
Comprehensive income attributable to HollyFrontier stockholders	20,281	17,382
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	0	0
Cost of products sold	0	0
Lower of cost or market inventory valuation adjustment	0
Operating Costs and Expenses	0	0
General and administrative	0	0
Depreciation and amortization	0	0
Total operating costs and expenses	0	0
Income (loss) from operations	0	0
Earnings (loss) of equity method investments	(404,977)	(279,704)
Interest income (expense)	0	0
Loss on early extinguishment of debt		0
Gain on sale of assets	0
Nonoperating Income (Expense)	(404,977)	(279,704)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(404,977)	(279,704)
Income tax provision	0	0
Net income	(404,977)	(279,704)
Less net income attributable to noncontrolling interest	0	0
Net income attributable to HollyFrontier stockholders	(404,977)	(279,704)
Comprehensive income attributable to HollyFrontier stockholders	(385,817)	(366,766)
Holly Frontier Corp. Before Consolidation Of HEP [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	2,989,498	4,776,195
Cost of products sold	2,322,881	4,209,722
Lower of cost or market inventory valuation adjustment	(6,546)
Operating Costs and Expenses	236,003	251,476
General and administrative	26,279	23,772
Depreciation and amortization	69,258	68,897
Total operating costs and expenses	2,647,875	4,553,867
Income (loss) from operations	341,623	222,328
Earnings (loss) of equity method investments	11,901	14,960
Interest income (expense)	1,922	1,851
Loss on early extinguishment of debt		0
Gain on sale of assets	608
Nonoperating Income (Expense)	14,431	16,811
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	356,054	239,139
Income tax provision	129,627	87,539
Net income	226,427	151,600
Less net income attributable to noncontrolling interest	(7)	0
Net income attributable to HollyFrontier stockholders	226,434	151,600
Comprehensive income attributable to HollyFrontier stockholders	214,912	204,842
Non-Guarantor Non-Restricted Subsidiaries (HEP Segment) [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	89,756	87,012
Cost of products sold	0	0
Lower of cost or market inventory valuation adjustment	0
Operating Costs and Expenses	27,966	22,812
General and administrative	3,290	3,151
Depreciation and amortization	14,290	15,184
Total operating costs and expenses	45,546	41,147
Income (loss) from operations	44,210	45,865
Earnings (loss) of equity method investments	734	522
Interest income (expense)	(8,767)	(10,451)
Loss on early extinguishment of debt		(7,677)
Gain on sale of assets	158
Nonoperating Income (Expense)	(7,875)	(17,606)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	36,335	28,259
Income tax provision	101	75
Net income	36,234	28,184
Less net income attributable to noncontrolling interest	4,027	3,637
Net income attributable to HollyFrontier stockholders	32,207	24,547
Comprehensive income attributable to HollyFrontier stockholders	31,912	24,585
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and other revenues	(72,628)	(72,154)
Cost of products sold	(71,508)	(71,102)
Lower of cost or market inventory valuation adjustment	0
Operating Costs and Expenses	(373)	(322)
General and administrative	0	0
Depreciation and amortization	(3,536)	(3,533)
Total operating costs and expenses	(75,417)	(74,957)
Income (loss) from operations	2,789	2,803
Earnings (loss) of equity method investments	(20,442)	(16,283)
Interest income (expense)	(2,347)	(2,342)
Loss on early extinguishment of debt		0
Gain on sale of assets	0
Nonoperating Income (Expense)	(22,789)	(18,625)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(20,000)	(15,822)
Income tax provision	0	0
Net income	(20,000)	(15,822)
Less net income attributable to noncontrolling interest	11,765	8,264
Net income attributable to HollyFrontier stockholders	(31,765)	(24,086)
Comprehensive income attributable to HollyFrontier stockholders	$ (31,470)	$ (24,124)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Total costs of sales and operating expenses for the period.

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