Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Sales and other revenues	$ 2,819,400	$ 4,424,828	$ 8,282,875	$ 13,104,690
Operating costs and expenses:
Cost of products sold (exclusive of lower of cost or market inventory valuation adjustment)	2,377,238	3,403,767	6,647,960	10,307,856
Lower of cost or market inventory valuation adjustment	(62,849)	34,062	227,711	(150,483)
Costs of products sold, net	2,314,389	3,437,829	6,875,671	10,157,373
Operating expenses (exclusive of depreciation and amortization)	332,496	345,578	964,200	1,010,422
Selling, general and administrative expenses (exclusive of depreciation and amortization)	74,453	87,626	237,559	260,977
Depreciation and amortization	125,280	127,016	396,033	375,345
Long-lived asset and goodwill impairments	0	0	436,908	152,712
Total operating costs and expenses	2,846,618	3,998,049	8,910,371	11,956,829
Income (loss) from operations	(27,218)	426,779	(627,496)	1,147,861
Other income (expense):
Earnings of equity method investments	1,316	1,334	5,186	5,217
Interest income	1,011	6,164	6,590	17,127
Interest expense	(30,589)	(36,027)	(85,923)	(106,938)
Gain on business interruption insurance settlement	81,000	0	81,000
Gain on sales-type leases	0	0	33,834	0
Loss on early extinguishment of debt	0	0	(25,915)	0
Gain (loss) on foreign currency transactions	1,030	395	(918)	4,873
Other, net	1,368	2,356	4,790	3,005
Other income (expense) total	55,136	(25,778)	18,644	(76,716)
Income (loss) before income taxes	27,918	401,001	(608,852)	1,071,145
Income tax expense (benefit):
Current	35,826	58,255	(41,221)	176,903
Deferred	(31,253)	44,766	(147,283)	102,959
Income tax expense (benefit)	4,573	103,021	(188,504)	279,862
Net income (loss)	23,345	297,980	(420,348)	791,283
Less net income attributable to noncontrolling interest	25,746	36,167	63,353	79,500
Net income (loss) attributable to HollyFrontier stockholders	$ (2,401)	$ 261,813	$ (483,701)	$ 711,783
Earnings (loss) per share attributable to HollyFrontier stockholders:
Basic	$ (0.01)	$ 1.60	$ (2.99)	$ 4.23
Diluted	$ (0.01)	$ 1.58	$ (2.99)	$ 4.20
Average number of common shares outstanding:
Basic	162,015	163,676	161,927	167,935
Diluted	162,015	165,011	161,927	169,125