Consolidated Statements Of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 187,558	$ 88,909	$ 536,673	$ 698,029
Other comprehensive income (loss)
Unrealized gain (loss) on marketable securities	(153)	44	(116)	18
Reclassification adjustments to net income on sale or maturity of marketable securities	(12)	(10)	(13)	(13)
Net unrealized gain (loss) on marketable securities	(165)	34	(129)	5
Change in fair value of cash flow hedging instruments	5,133	25,423	143,857	42,739
Reclassification adjustments to net income on settlement of cash flow hedging instruments	(13,844)	(21,478)	(31,710)	153
Amortization of unrealized loss attributable to discontinued cash flow hedges	270	270	810	1,479
Net unrealized gain (loss) on hedging instruments	(8,441)	4,215	112,957	44,371
Pension plan loss reclassified to net income	0	0	0	28,986
Loss on post-retirement healthcare plan	0	0	(89)	0
Post-retirement healthcare plan loss reclassified to net income	0	0	0	(1,726)
Retirement Restoration Plan Loss Reclassified to Net Income	422	0	422	0
Net change in post-retirement benefit obligation	422	0	333	30,712
Other comprehensive income (loss) before income taxes	(8,184)	4,249	113,161	75,088
Income tax expense (benefit)	(3,428)	1,946	43,694	28,421
Other comprehensive income (loss)	(4,756)	2,303	69,467	46,667
Total comprehensive income	182,802	91,212	606,140	744,696
Less noncontrolling interest in comprehensive income	13,225	5,954	33,455	27,156
Comprehensive income attributable to HollyFrontier stockholders	$ 169,577	$ 85,258	$ 572,685	$ 717,540