Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents (HEP: $11,220 and $5,237, respectively)	$ 1,294,484	$ 1,757,699
Marketable securities	656,749	630,586
Accounts receivable: Product and transportation (HEP: $35,876 and $38,097, respectively)	676,797	587,728
Crude oil resales	78,875	46,502
Accounts receivable, total	755,672	634,230
Inventories: Crude oil and refined products	1,461,310	1,238,678
Materials and supplies (HEP: $1,638 and $1,259, respectively)	86,863	80,954
Inventories, total	1,548,173	1,319,632
Income taxes receivable	74,287	74,957
Prepayments and other (HEP: $2,701 and $2,360, respectively)	80,770	53,161
Total current assets	4,410,135	4,470,265
Properties, plants and equipment, at cost (HEP: $1,177,772 and $1,155,710, respectively)	4,207,876	3,943,114
Less accumulated depreciation (HEP: $(179,215) and $(141,154), respectively)	(895,621)	(748,414)
Property, plant and equipment, net	3,312,255	3,194,700
Marketable securities (long-term)	5,415	5,116
Other assets: Turnaround costs	257,086	151,764
Goodwill (HEP: $288,991 and $288,991, respectively)	2,338,302	2,338,302
Intangibles and other (HEP: $74,385 and $76,300, respectively)	175,451	168,850
Other assets, total	2,770,839	2,658,916
Total assets	10,498,644	10,328,997
Current liabilities:
Accounts payable (HEP: $13,001 and $12,030, respectively)	1,615,970	1,314,151
Accrued liabilities (HEP: $22,324 and $23,705, respectively)	144,038	195,077
Deferred income tax liabilities	133,940	145,216
Total current liabilities	1,893,948	1,654,444
Long-term debt (HEP: $809,391 and $864,673, respectively)	999,884	1,336,238
Deferred income taxes (HEP: $5,287 and $4,951, respectively)	658,143	536,670
Other long-term liabilities (HEP: $33,139 and $28,683, respectively)	150,519	158,987
HollyFrontier stockholders' equity:
Preferred stock, $1.00 par value - 5,000,000 shares authorized; none issued	0	0
Common stock $.01 par value - 320,000,000 shares authorized; 255,962,866 shares issued as of September 30, 2013 and December 31, 2012	2,560	2,560
Additional capital	3,991,159	3,911,353
Retained earnings	3,241,694	3,054,769
Accumulated other comprehensive income (loss)	36,174	(8,425)
Common stock held in treasury, at cost - 56,516,027 and 52,411,370 shares as of September 30, 2013 and December 31, 2012, respectively	(1,097,428)	(907,303)
Total HollyFrontier stockholders' equity	6,174,159	6,052,954
Noncontrolling interest	621,991	589,704
Total equity	6,796,150	6,642,658
Total liabilities and equity	10,498,644	10,328,997
HEP [Member]
Current assets:
Cash and cash equivalents (HEP: $11,220 and $5,237, respectively)	11,220	5,237
Accounts receivable: Product and transportation (HEP: $35,876 and $38,097, respectively)	35,876	38,097
Materials and supplies (HEP: $1,638 and $1,259, respectively)	1,638	1,259
Prepayments and other (HEP: $2,701 and $2,360, respectively)	2,701	2,360
Properties, plants and equipment, at cost (HEP: $1,177,772 and $1,155,710, respectively)	1,177,772	1,155,710
Less accumulated depreciation (HEP: $(179,215) and $(141,154), respectively)	(179,215)	(141,154)
Goodwill (HEP: $288,991 and $288,991, respectively)	288,991	288,991
Intangibles and other (HEP: $74,385 and $76,300, respectively)	74,385	76,300
Total assets	1,413,368	1,426,800
Current liabilities:
Accounts payable (HEP: $13,001 and $12,030, respectively)	13,001	12,030
Accrued liabilities (HEP: $22,324 and $23,705, respectively)	22,324	23,705
Long-term debt (HEP: $809,391 and $864,673, respectively)	809,391	864,673
Deferred income taxes (HEP: $5,287 and $4,951, respectively)	5,287	4,951
Other long-term liabilities (HEP: $33,139 and $28,683, respectively)	$ 33,139	$ 28,683