Consolidated Statements Of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Sales and other revenues	$ 3,006,626	$ 4,791,053
Operating costs and expenses:
Cost of products sold (exclusive of depreciation and amortization)	2,251,373	4,138,620
Lower of cost or market inventory valuation adjustment	(6,546)	0
Refining and Marketing Costs, net	2,244,827	4,138,620
Operating expenses (exclusive of depreciation and amortization)	263,596	273,966
General and administrative expenses (exclusive of depreciation and amortization)	29,569	26,923
Depreciation and amortization	80,012	80,548
Total operating costs and expenses	2,618,004	4,520,057
Income from operations	388,622	270,996
Other income (expense):
Earnings (loss) of equity method investments	(7,807)	(801)
Interest income	962	1,405
Interest expense	(10,154)	(12,347)
Gain on sale of assets	766	0
Loss on early extinguishment of debt	0	(7,677)
Other income (expense) total	(16,233)	(19,420)
Income before income taxes	372,389	251,576
Income tax provision:
Current	139,198	93,293
Deferred	(9,470)	(5,679)
Income tax provision total	129,728	87,614
Net income	242,661	163,962
Less net income attributable to noncontrolling interest	15,785	11,901
Net income attributable to HollyFrontier stockholders	$ 226,876	$ 152,061
Earnings per share attributable to HollyFrontier stockholders:
Basic	$ 1.16	$ 0.76
Diluted	$ 1.16	$ 0.76
Cash dividends declared per common share	$ 0.32	$ 0.80
Average number of common shares outstanding:
Basic	195,069	198,297
Diluted	195,121	198,924