Consolidated Statements Of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 265,749	$ 502,370	$ 609,120	$ 749,390
Securities available for sale
Unrealized gain on available-for-sale securities	(39)	(114)	(26)	191
Reclassification adjustments to net income on sale or maturity of marketable securities	(6)	(290)	(3)	(407)
Net unrealized gain (loss) on available-for-sale securities	(45)	(404)	(29)	(216)
Change in Fair Value of Cash Flow Hedge	27,661	25,242	17,315	(115,455)
Reclassification adjustments to net income on settlement of cash flow hedging instruments	(6,073)	4,286	21,631	(11,906)
Amortization of unrealized loss attributable to discontinued cash flow hedges	270	1,273	1,209	2,547
Net unrealized gain (loss) before income taxes	21,858	30,801	40,155	(124,814)
Settlement of pension plan obligations	28,986	0	28,986	0
Actuarial loss on post-retirement healthcare plan reclassified to net income upon partial plan settlement	0	0	1,726	0
Other Comprehensive Income (Loss), Pension Curtailment Adjustment	0	7,102	0	7,102
Other comprehensive income (loss) before income taxes	50,799	37,499	70,838	(117,928)
Income tax expense (benefit)	(18,986)	(14,640)	(26,474)	46,030
Other comprehensive income (loss)	31,813	22,859	44,364	(71,898)
Total comprehensive income	297,562	525,229	653,484	677,492
Less noncontrolling interest in comprehensive income	10,708	8,734	21,202	14,595
Comprehensive income attributable to HollyFrontier stockholders	$ 286,854	$ 516,495	$ 632,282	$ 662,897