Other Comprehensive Income (Loss) (Components And Allocated Tax Effects Of Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss) [Abstract]
Net unrealized gain (loss) on marketable securities	$ 34	$ (236)	$ (516)
Net Unrealized gain (loss) on available-for-sale securities, Tax Expense (Benefit)	(17)	95	199
Net unrealized gain (loss) on available-for-sale securities, After-Tax	17	(141)	(317)
Net Unrealized Gain (Loss) on Hedging Activities, Before-Tax	(20,183)	(191,039)	176,936
Net Unrealized Gain (Loss) on Hedging Activities, Tax	(8,669)	(74,846)	67,732
Net Unrealized Gain (Loss) on Hedging Activities, Net of Tax	(11,514)	(116,193)	109,204
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	37,593	51,391	(3,586)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	14,534	19,991	(1,395)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	23,059	31,400	(2,191)
Other comprehensive income (loss) before income taxes	17,444	(139,884)	172,834
Other comprehensive income (loss), Tax Expense (Benefit)	5,882	(54,950)	66,138
Other comprehensive income (loss)	11,562	(84,934)	106,696
Less other comprehensive income (loss) attributable to noncontrolling interest, Before-Tax	2,315	1,364	2,815
Less other comprehensive income (loss) attributable to noncontrolling interest, Tax Expense (Benefit)	0	0	0
Less other comprehensive income (loss) attributable to noncontrolling interest, After-Tax	2,315	1,364	2,815
Other comprehensive income (loss) attributable to HollyFrontier stockholders, Before-Tax	15,129	(141,248)	170,019
Other comprehensive income (loss) attributable to HollyFrontier stockholders, Tax Expense (Benefit)	5,882	(54,950)	66,138
Other comprehensive income (loss) attributable to HollyFrontier stockholders, After-Tax	$ 9,247	$ (86,298)	$ 103,881