Delek US 10-Q 6 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Entity Information [Line Items]	'	'
Entity Registrant Name	'Delek US Holdings, Inc.	'
Entity Central Index Key	'0001351541	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	60,566,373
Entity Well-known Seasoned Issuer	'No	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$497.70	$400
Accounts receivable	324	250.5
Inventory	544	672.3
Other current assets	76.6	94.3
Total current assets	1,442.30	1,417.10
Property, plant and equipment:	'	'
Property, plant and equipment	1,881.20	1,683.70
Less: accumulated depreciation	-480.9	-405.2
Property, plant and equipment, net	1,400.30	1,278.50
Goodwill	73.9	72.7
Other intangibles, net	12.4	13.3
Other non-current assets	128.7	58.8
Total assets	3,057.60	2,840.40
Current liabilities:	'	'
Accounts payable	566.5	602
Current portion of long-term debt and capital lease obligations	58.4	33.7
Obligation under Supply and Offtake Agreement	282.5	331
Accrued expenses and other current liabilities	111.7	113.4
Total current liabilities	1,019.10	1,080.10
Non-current liabilities:	'	'
Long-term debt and capital lease obligations, net of current portion	535.8	376.6
Environmental liabilities, net of current portion	8.6	9.2
Asset retirement obligations	9	8.5
Deferred tax liabilities	240.4	220
Other non-current liabilities	15.3	25.6
Total non-current liabilities	809.1	639.9
Stockholders' equity:	'	'
Preferred stock, $0.01 par value, 10,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.01 par value, 110,000,000 shares authorized, 60,559,731 shares and 60,229,107 shares issued at September 30, 2014 and December 31, 2013, respectively	0.6	0.6
Additional paid-in capital	392.3	384.5
Accumulated other comprehensive income (loss)	14.4	-4
Treasury stock, 2,265,901 and 1,000,000 shares, at cost, as of September 30, 2014 and December 31, 2013, respectively.	-79.5	-37.9
Retained earnings	708.2	591.8
Non-controlling interest in subsidiaries	193.4	185.4
Total stockholders’ equity	1,229.40	1,120.40
Total liabilities and stockholders’ equity	$3,057.60	$2,840.40

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) Parenthetical (USD $)	Sep. 30, 2014	Dec. 31, 2013
Condensed Consolidated Balance Sheets Parenthetical [Abstract]	'	'
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	110,000,000	110,000,000
Common stock, shares issued	60,559,731	60,229,107
Treasury Stock, Shares, at cost	2,265,901	1,000,000

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Net sales	$2,322.20	$2,321.80	$6,562.60	$6,769.10
Operating costs and expenses:	'	'	'	'
Cost of goods sold	2,035.20	2,167.30	5,786.80	6,110.60
Operating expenses	100.9	97.1	301.6	291.1
General and administrative expenses	36	24	97.6	79.7
Depreciation and amortization	29.2	20.6	82	64.2
Other operating income, net	0	-0.1	0	-1.6
Total operating costs and expenses	2,201.30	2,308.90	6,268	6,544
Operating income	120.9	12.9	294.6	225.1
Interest expense	10	9.6	29.7	28
Interest income	0	-0.1	-0.4	-0.3
Other income, net	-0.1	-0.1	-0.1	-6.8
Total non-operating expenses, net	9.9	9.4	29.2	20.9
Income from continuing operations before income taxes	111	3.5	265.4	204.2
Income tax expense	32.8	0.5	84.7	68.1
Net income	78.2	3	180.7	136.1
Net income attributed to non-controlling interest	5.7	4.7	19.6	13.7
Net income (loss) attributable to Delek	$72.50	($1.70)	$161.10	$122.40
Basic earnings per share	$1.23	($0.03)	$2.73	$2.07
Diluted earnings per share	$1.22	($0.03)	$2.70	$2.04
Weighted average common shares outstanding:	'	'	'	'
Basic	58,744,099	59,093,721	59,090,291	59,195,337
Diluted	59,302,788	59,727,244	59,673,599	60,097,637
Dividends declared per common share outstanding	$0.25	$0.25	$0.75	$0.70

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed Consolidated Statements of Comprehensive Income [Abstract]	'	'	'	'
Net income (loss) attributable to Delek	$72.50	($1.70)	$161.10	$122.40
Other comprehensive income:	'	'	'	'
Net gain on derivative instruments, net of tax expense of $0.8 million and $10.4 million for the three and nine months ended September 30, 2014, respectively, and $1.9 million and $1.7 million for the three and nine months ended September 30, 2013, respectively, and net of ineffectiveness gain (loss) of $8.9 million and $(5.4) million for the three and nine months ended September 30, 2014, respectively, and $(1.2) million for both the three and nine months ended September 30, 2013.	1.6	4	18.4	3.6
Comprehensive income attributable to Delek	$74.10	$2.30	$179.50	$126

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) Parenthetical (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income tax expense on net gain on derivative instruments	$0.80	$1.90	$10.40	$1.70
Ineffectiveness gain (loss) on cash flow hedges	$8.90	($1.20)	($5.40)	($1.20)

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows ( Unaudited) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$180.70	$136.10
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	82	64.2
Amortization of deferred financing costs	3.6	4.1
Accretion of asset retirement obligations	0.5	0.4
Amortization of unfavorable contract liability	-2	-2
Deferred income taxes	10.8	-9.8
Equity-based compensation expense	10	7.9
Income tax benefit of equity-based compensation	-2.3	-5.6
Changes in assets and liabilities, net of acquisitions:	'	'
Accounts receivable	-73.5	-72.4
Inventories and other current assets	174.9	-136.9
Increase (Decrease) in Market Value of Derivatives	34.1	9.2
Accounts payable and other current liabilities	-31.8	34.2
Obligation under Supply and Offtake Agreement	-48.5	47.1
Non-current assets and liabilities, net	-46.4	-25
Net cash provided by operating activities	223.9	33.1
Cash flows from investing activities:	'	'
Business combinations	-11.1	-10.8
Purchases of property, plant and equipment	-193.3	-117.3
Proceeds from sales of assets	0.2	0
Net cash used in investing activities	-204.2	-128.1
Cash flows from financing activities:	'	'
Proceeds from long-term revolvers	888	387
Payments on long-term revolvers	-791.3	-326
Proceeds from term debt	104.1	11.6
Payments on term debt and capital lease obligations	-16.6	-65.8
Proceeds from exercise of stock options	1	1.1
Taxes paid due to the net settlement of equity-based compensation	-4.8	-2.6
Income tax benefit of equity-based compensation	2.3	5.6
Repurchase of common stock	-41.6	-37.9
Distribution to non-controlling interest	-12.3	-9.2
Dividends paid	-44.7	-41.8
Deferred financing costs paid	-6.1	-0.5
Net cash provided by (used in) financing activities	78	-78.5
Net increase (decrease) in cash and cash equivalents	97.7	-173.5
Cash and cash equivalents at the beginning of the period	400	601.7
Cash and cash equivalents at the end of the period	497.7	428.2
Cash paid during the period for:	'	'
Interest, net of capitalized interest of $1.6 million and $0.5 million in the 2014 and 2013 periods, respectively.	26.9	23.5
Income taxes	$73.40	$44.70

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Cash Flows (Unaudited) Parentheticals (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Capitalized interest	$1.60	$0.50

Organization_and_Basis_of_Pres

Organization and Basis of Presentation (Notes)	9 Months Ended
	Sep. 30, 2014
Organization and Basis of Presentation [Abstract]	'
Organization and Basis of Presentation	'
	Organization and Basis of Presentation
	Delek US Holdings, Inc. is the sole shareholder or owner of membership interests of Delek Refining, Inc. ("Refining"), Delek Finance, Inc., Delek Marketing & Supply, LLC, Lion Oil Company ("Lion Oil"), Delek Renewables, LLC, Delek Rail Logistics, Inc., Delek Logistics Services Company, MAPCO Express, Inc. ("MAPCO Express"), MAPCO Fleet, Inc., NTI Investments, LLC, GDK Bearpaw, LLC, Delek Helena, LLC, Commerce Way Insurance Company, Inc. and Delek Land Holdings, LLC. Unless otherwise indicated or the context requires otherwise, the terms "we," "our," "us," "Delek" and the "Company" are used in this report to refer to Delek US Holdings, Inc. and its consolidated subsidiaries. Delek is listed on the New York Stock Exchange under the symbol "DK."
	Our condensed consolidated financial statements include Delek Logistics Partners, LP ("Delek Logistics"), a variable interest entity. Because our consolidated subsidiary, Delek Logistics GP, LLC ("Logistics GP"), is the general partner of Delek Logistics, we have the ability to direct the activities of Delek Logistics that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are Delek Logistics' primary customer. Delek Logistics does not derive an amount of gross margin material to us from third parties. However, in the event that Delek Logistics incurs a loss, our operating results will reflect Delek Logistics' loss, net of intercompany eliminations, to the extent of our ownership interest in Delek Logistics.
	The condensed consolidated financial statements include the accounts of Delek and its consolidated subsidiaries. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted, although management believes that the disclosures herein are adequate to make the financial information presented not misleading. Our unaudited condensed consolidated financial statements have been prepared in conformity with GAAP applied on a consistent basis with those of the annual audited financial statements included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on March 3, 2014, as amended by Amendment No. 1 on Form 10-K/A that was filed with the SEC on June 26, 2014 (collectively, the "Annual Report on Form 10-K") and in accordance with the rules and regulations of the SEC. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2013 included in our Annual Report on Form 10-K.
	In the opinion of management, all adjustments necessary for a fair presentation of the financial position and the results of operations for the interim periods have been included. All significant intercompany transactions and account balances have been eliminated in consolidation. All adjustments are of a normal, recurring nature. Operating results for the interim period should not be viewed as representative of results that may be expected for any future interim period or for the full year.
	Certain prior period amounts have been reclassified in order to conform to the current year presentation. These reclassifications had no effect on net income or shareholders' equity as previously reported.
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	New Accounting Pronouncements
	On January 1, 2014 we adopted guidance issued by the Financial Accounting Standards Board regarding "Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" to eliminate diversity in practice. This guidance requires that companies net their unrecognized tax benefits against all same-jurisdiction net operating losses or tax credit carryforwards that would be used to settle the position with a tax authority. The adoption of this guidance did not materially affect our business, financial position or results of operations.

Delek_Logistics_Partners_LP_No

Delek Logistics Partners, LP (Notes)	9 Months Ended
	Sep. 30, 2014
Variable Interest Entity, Measure of Activity [Abstract]	'
Delek Logistics Partners, LP	'
	Delek Logistics Partners, LP
	Delek Logistics is a publicly traded limited partnership that was formed by Delek to own, operate, acquire and construct crude oil and refined products logistics and marketing assets. A substantial majority of Delek Logistics' assets are currently integral to Delek’s refining and marketing operations. As of September 30, 2014, we owned a 60.0% limited partner interest in Delek Logistics, and a 96.1% interest in Logistics GP, which owns the entire 2.0% general partner interest in Delek Logistics and all of the incentive distribution rights. Delek's partnership interest in Delek Logistics includes 2,799,258 common units, 11,999,258 subordinated units and 493,533 general partner units.
	In July 2013, Delek Logistics completed the acquisition of a terminal, storage tanks and related assets adjacent to our refinery in Tyler, Texas (the "Tyler refinery") from one of our subsidiaries (the "Tyler Acquisition"). The cash paid for the assets acquired was approximately $94.8 million, financed with a combination of proceeds from the amended and restated Delek Logistics revolving credit agreement and cash on hand.
	In February 2014, a subsidiary of Delek Logistics completed the acquisition of certain storage tanks and the products terminal located at our refinery in El Dorado, Arkansas (the "El Dorado refinery") from Lion Oil (the "El Dorado Acquisition"). The cash paid for the assets acquired was approximately $95.9 million, financed with borrowings under the amended and restated Delek Logistics revolving credit agreement. The storage tanks have approximately 2.5 million barrels of aggregate shell capacity and consist of 158 tanks and ancillary assets, including piping and pumps.
	The Tyler Acquisition and the El Dorado Acquisition are each considered a transfer of a business between entities under common control. As such, the assets acquired and liabilities assumed were transferred to Delek Logistics at historical basis instead of fair value.
	We have agreements with Delek Logistics that, among other things, establish fees for certain administrative and operational services provided by us and our subsidiaries to Delek Logistics, provide certain indemnification obligations and establish terms for fee-based commercial logistics and marketing services provided by Delek Logistics and its subsidiaries to us.
	With the exception of affiliate balances which are eliminated in consolidation, the Delek Logistics condensed consolidated balance sheets as of September 30, 2014 and December 31, 2013, as presented below, are included in the consolidated balance sheets of Delek.
		September 30,		December 31, 2013(1)
		2014
		(In millions)
		(Unaudited)
	ASSETS
	Cash and cash equivalents	$	0.7	$	0.9
	Accounts receivable	39.6		29
	Inventory	9.8		17.5
	Other current assets	0.7		0.3
	Net property, plant and equipment	218.1		225.8
	Goodwill	11.7		10.5
	Intangible assets, net	11.6		12.3
	Other non-current assets	4		5
	Total assets	$	296.2	$	301.3
	LIABILITIES AND EQUITY
	Accounts payable	$	23.7	$	26
	Accounts payable to related parties	9.5		1.5
	Accrued expenses and other current liabilities	12.7		12.2
	Revolving credit facility	230		164.8
	Asset retirement obligations	3.2		3.1
	Deferred tax liabilities	0.4		0.3
	Other non-current liabilities	5.4		6.2
	Equity	11.3		87.2
	Total liabilities and equity	$	296.2	$	301.3
	(1)These amounts have been restated to reflect the assets and liabilities acquired in the El Dorado Acquisition.

Acquisitions_Notes

Acquisitions (Notes)	9 Months Ended
	Sep. 30, 2014
Acquisitions [Abstract]	'
Acquisitions	'
	Acquisitions
	Crossett Biodiesel Facility Acquisition
	On January 2, 2014, we purchased a biodiesel plant in Crossett, Arkansas (the "Crossett Facility") from Pinnacle Biofuels, Inc. for approximately $11.1 million, which has been allocated to property, plant and equipment.  The Crossett Facility has a production capacity of approximately 10.0 million gallons per year and produced biodiesel exclusively for Delek under a tolling agreement prior to this acquisition.

Inventory_Notes

Inventory (Notes)	9 Months Ended
	Sep. 30, 2014
Inventory [Abstract]	'
Inventory	'
	Inventory
	Refinery inventory consists of crude oil, in-process, refined products and blendstocks which are stated at the lower of cost or market. Cost of inventory for the Tyler refinery is determined under the last-in, first-out ("LIFO") valuation method. Cost of inventory for the El Dorado refinery is determined on a first-in, first-out ("FIFO") basis. Cost of crude oil, in-process, refined product and feedstock inventories in excess of market value is charged to cost of goods sold.
	Logistics inventory consists of refined products which are stated at the lower of cost or market on a FIFO basis.
	Retail inventory consists of gasoline, diesel fuel, other petroleum products, cigarettes, beer, convenience merchandise and food service merchandise. Fuel inventories are stated at the lower of cost or market on a FIFO basis. Non-fuel inventories are stated at estimated cost as determined by the retail inventory method.
	Carrying value of inventories consisted of the following (in millions):
		September 30,		December 31,
		2014		2013
	Refinery raw materials and supplies	$	179.5	$	250.9
	Refinery work in process	70.2		58.6
	Refinery finished goods	239.1		299.2
	Retail fuel	17.8		19.2
	Retail merchandise	27.6		26.9
	Logistics refined products	9.8		17.5
	Total inventories	$	544	$	672.3
	At September 30, 2014 and December 31, 2013, the excess of replacement cost (FIFO) over the carrying value (LIFO) of the Tyler refinery inventories was $32.3 million and $51.5 million, respectively.
	Permanent Liquidations
	During the three and nine months ended September 30, 2014, we incurred a permanent reduction in a LIFO layer resulting in a liquidation loss in our refinery inventory of $10.2 million and $7.9 million, respectively. These liquidations were recognized as a component of cost of goods sold in the three and nine months ended September 30, 2014.
	During the three and nine months ended September 30, 2013, we incurred a permanent reduction in a LIFO layer resulting in a liquidation gain in our refinery inventory of $1.2 million and $0.5 million, respectively. These liquidations were recognized as a component of cost of goods sold in the three and nine months ended September 30, 2013.

Crude_Oil_Supply_and_Inventory

Crude Oil Supply and Inventory Purchase Agreement (Notes)	9 Months Ended
	Sep. 30, 2014
Crude Oil Supply and Inventory Purchase Agreement [Abstract]	'
Crude Oil Supply and Inventory Purchase Agreement	'
	Crude Oil Supply and Inventory Purchase Agreement
	Delek has a Master Supply and Offtake Agreement (the "Supply and Offtake Agreement") with J. Aron & Company ("J. Aron"). Throughout the term of the Supply and Offtake Agreement, which was amended on December 23, 2013 to expire on April 30, 2017, Lion Oil and J. Aron will identify mutually acceptable contracts for the purchase of crude oil from third parties and J. Aron will supply up to 100,000 barrels per day ("bpd") of crude to the El Dorado refinery. Crude oil supplied to the El Dorado refinery by J. Aron will be purchased daily at an estimated average monthly market price by Lion Oil. J. Aron will also purchase all refined products from the El Dorado refinery at an estimated market price daily, as they are produced. These daily purchases and sales are trued-up on a monthly basis in order to reflect actual average monthly prices. We have recorded a receivable related to this settlement of $10.2 million and $18.2 million as of September 30, 2014 and December 31, 2013, respectively, which is included in accounts receivable on the condensed consolidated balance sheet. Also pursuant to the Supply and Offtake Agreement and other related agreements, Lion Oil will endeavor to arrange potential sales by either Lion Oil or J. Aron to third parties of the products produced at the El Dorado refinery or purchased from third parties. In instances where Lion Oil is the seller to such third parties, J. Aron will first transfer the applicable products to Lion Oil.
	While title to the inventories will reside with J. Aron, this arrangement will be accounted for as a product financing arrangement. Delek incurred fees payable to J. Aron of $2.6 million and $7.6 million during the three and nine months ended September 30, 2014, respectively, and $2.1 million and $6.3 million during the three and nine months ended September 30, 2013, respectively. These amounts are included as a component of interest expense in the condensed consolidated statements of income. Upon any termination of the Supply and Offtake Agreement, including in connection with a force majeure event, the parties are required to negotiate with third parties for the assignment to us of certain contracts, commitments and arrangements, including procurement contracts, commitments for the sale of product, and pipeline, terminalling, storage and shipping arrangements.
	Upon the expiration of the Supply and Offtake Agreement on April 30, 2017 or upon any earlier termination, Delek will be required to repurchase the consigned crude oil and refined products from J. Aron at then prevailing market prices. At September 30, 2014, Delek had 3.1 million barrels of inventory consigned for J. Aron and we have recorded liabilities associated with this consigned inventory of $282.5 million in the condensed consolidated balance sheet.

LongTerm_Obligations_and_Notes

Long-Term Obligations and Notes Payable (Notes)	9 Months Ended
	Sep. 30, 2014
Long-Term Obligations and Notes Payable [Abstract]	'
Long-Term Obligations and Notes Payable	'
	Long-Term Obligations and Notes Payable
	Outstanding borrowings under Delek’s existing debt instruments and capital lease obligations are as follows (in millions):
		September 30,		December 31,
		2014		2013
	MAPCO Revolver	$	92	$	67.5
	DKL Revolver	230		164.8
	Wells Term Loan	70		—
	Reliant Bank Revolver	17		10
	Promissory notes	75		77.4
	Lion Term Loan, net of $0.3 million debt discount at September 30, 2014	109.7		90
	Capital lease obligations	0.5		0.6
		594.2		410.3
	Less: Current portion of long-term debt, notes payable and capital lease obligations	58.4		33.7
		$	535.8	$	376.6
	MAPCO Revolver
	Our subsidiary, MAPCO Express, has a revolving credit facility with Fifth Third Bank, as administrative agent, and a syndicate of lenders that was amended and restated on May 6, 2014 (the "MAPCO Revolver"). The MAPCO Revolver consists of a $160.0 million revolving credit limit which includes (i) a $10.0 million swing line loan sub-limit; (ii) a $40.0 million letter of credit sub-limit; and (iii) an accordion feature which permits an increase in borrowings by up to $50.0 million, subject to additional lender commitments. As of September 30, 2014, we had $92.0 million outstanding under the MAPCO Revolver, as well as letters of credit issued of $2.6 million, with approximately $65.4 million availability remaining. Borrowings under the MAPCO Revolver are secured by (i) substantially all the assets of MAPCO Express and its subsidiaries, subject to certain exceptions and limitations, (ii) all of Delek’s shares in MAPCO Express, and (iii) a limited guaranty provided by Delek of up to $50.0 million in obligations. The MAPCO Revolver will mature on May 6, 2019. The MAPCO Revolver bears interest based on predetermined pricing grids which allow us to choose between base rate loans or London Interbank Offered Rate ("LIBOR") rate loans. At September 30, 2014, the weighted average borrowing rate under the MAPCO Revolver was approximately 3.46%. Additionally, the MAPCO Revolver requires us to pay a leverage ratio dependent quarterly fee on the average unused revolving commitment. As of September 30, 2014, this fee was 0.35% per year.
	Wells ABL
	Our subsidiary, Delek Refining, Ltd., has an asset-based loan credit facility with Wells Fargo Bank, National Association, as administrative agent, and a syndicate of lenders (the "Wells ABL") that consists of (i) a $600 million revolving loan (the "Wells Revolving Loan"), which includes a $55.0 million swing line loan sub-limit and a $550.0 million letter of credit sub-limit, (ii) a $70.0 million delayed single draw term loan (the "Wells Term Loan"), and (iii) an accordion feature which permits an increase in revolving credit commitments of up to $875.0 million subject to additional lender commitments and the satisfaction of certain other conditions precedent. The Wells Revolving Loan matures on January 16, 2019 and the Wells Term Loan matures on December 31, 2016. The Wells Term Loan is subject to repayment in level principal installments of approximately $5.8 million per quarter, beginning December 31, 2014, with a final balloon payment due on December 31, 2016. As of September 30, 2014, under the Wells ABL we had letters of credit issued totaling approximately $105.5 million and a nominal amount outstanding under the Wells Revolving Loan; under the Wells Term Loan we had $70.0 million outstanding. Borrowings under the Wells ABL are secured by substantially all the assets of Refining and its subsidiaries, with certain limitations. Under the facility, revolving loans and letters of credit are provided subject to availability requirements which are determined pursuant to a borrowing base calculation as defined in the credit agreement. The borrowing base as calculated is primarily supported by cash, certain accounts receivable and certain inventory. Borrowings under the Wells Revolving Loan and Wells Term Loan bear interest based on separate predetermined pricing grids which allow us to choose between base rate loans or LIBOR rate loans. At September 30, 2014, the weighted average borrowing rate under the Wells Term Loan was approximately 3.90%. Additionally, the Wells ABL requires us to pay a quarterly credit utilization fee. As of September 30, 2014, this fee was approximately 0.38% per year. Borrowing capacity, as calculated and reported under the terms of the Wells ABL credit facility, as of September 30, 2014, was $374.3 million.
	DKL Revolver
	Delek Logistics has a $400.0 million Senior Secured Revolving Credit Agreement with Fifth Third Bank, as administrative agent, and a syndicate of lenders (the "DKL Revolver"). Delek Logistics and each of its existing subsidiaries are borrowers under the DKL Revolver. The DKL Revolver contains a dual currency borrowing tranche that permits draw downs in U.S. or Canadian dollars and an accordion feature whereby Delek Logistics can increase the size of the credit facility to an aggregate of $450.0 million, subject to receiving increased or new commitments from lenders and the satisfaction of certain other conditions precedent.
	The obligations under the DKL Revolver are secured by a first priority lien on substantially all of Delek Logistics' tangible and intangible assets. Additionally, a subsidiary of Delek provides a limited guaranty of Delek Logistics' obligations under the DKL Revolver. The guaranty is (i) limited to an amount equal to the principal amount, plus unpaid and accrued interest, of a promissory note made by Delek in favor of the subsidiary guarantor (the "Holdings Note") and (ii) secured by the subsidiary guarantor's pledge of the Holdings Note to the DKL Revolver lenders. As of September 30, 2014, the principal amount of the Holdings Note was $102.0 million.
	The DKL Revolver will mature on November 7, 2017. Borrowings under the DKL Revolver bear interest at either a U.S. base rate, Canadian prime rate, LIBOR rate, or a Canadian Dealer Offered Rate rate plus applicable margins, at the election of the borrowers and as a function of draw down currency. The applicable margin varies based upon Delek Logistics' Leverage Ratio, which is defined as the ratio of total funded debt to EBITDA for the most recently ended four fiscal quarters. At September 30, 2014, the weighted average borrowing rate was approximately 2.40%. Additionally, the DKL Revolver requires us to pay a leverage ratio dependent quarterly fee on the average unused revolving commitment. As of September 30, 2014, this fee was 0.40% per year. As of September 30, 2014, Delek Logistics had $230.0 million of outstanding borrowings under the DKL Revolver, as well as letters of credit issued of $13.0 million. Amounts available under the DKL Revolver, as of September 30, 2014, were approximately $157.0 million.
	Reliant Bank Revolver
	We have a revolving credit agreement with Reliant Bank which was amended on June 26, 2014 (the "Reliant Bank Revolver"). The Reliant Bank Revolver provides for unsecured loans of up to $17.0 million. As of September 30, 2014, we had $17.0 million outstanding under this facility. The Reliant Bank Revolver matures on June 28, 2016, and bears interest at a fixed rate of 5.25% per annum. The Reliant Bank Revolver requires us to pay a quarterly fee of 0.50% per year on the average available revolving commitment. As of September 30, 2014, we had no undrawn amounts available under the Reliant Bank Revolver.
	Promissory Notes
	In 2011, Delek began construction on new MAPCO Mart convenience stores (each a "Build-to-Suit Development" or "BTS"). In order to fund these construction projects, we entered into separate notes for each BTS project with Standard Insurance Company (collectively, the "Notes") varying in size from $1.0 million to $2.2 million. The Notes bear interest at fixed rates, ranging from 5.00% to 6.38% per annum. Each of the Notes is secured by the land or leasehold interest, as applicable, and the building and equipment of its respective completed MAPCO Mart. Under the terms of each Note, beginning on the first day of the eleventh month following the initial fund advancement, payments of principal on each respective Note are due over a ten-year term calculated using a 25-year amortization schedule. If any Note is not paid in full after the initial ten-year period, we may continue to make monthly payments under the Note; however, the interest rate will reset pursuant to the terms of the Note. There is also an additional interest rate reset after the first 20-year period. The final maturity dates of the Notes range from June 1, 2036 to November 1, 2039. As of September 30, 2014, we had amounts drawn under 29 Notes related to these BTS projects, for a total amount of approximately $42.9 million outstanding under the Notes.
	On April 29, 2011, Delek entered into a $50.0 million promissory note (the "Ergon Note") with Ergon, Inc. ("Ergon") in connection with the closing of our acquisition of Lion Oil. As of September 30, 2014, $30.0 million was outstanding under the Ergon Note. The Ergon Note requires Delek to make annual amortization payments of $10.0 million each, commencing April 29, 2013. The Ergon Note matures on April 29, 2017. Interest under the Ergon Note is computed at a fixed rate equal to 4.00% per annum.
	On December 19, 2011, Delek entered into a $25.0 million promissory note (the "Ergon Paline Note") with Ergon Terminaling, Inc. ("Ergon Terminaling") in connection with the closing of the acquisition of all of the membership interests of Paline from Ergon Terminaling. The Ergon Paline Note was subsequently assigned by Ergon Terminaling to Ergon. As of September 30, 2014, $2.1 million was outstanding under the Ergon Paline Note. The Ergon Paline Note requires Delek to make quarterly amortization payments of approximately $2.1 million each, commencing on March 31, 2012. The Ergon Paline Note matures on December 19, 2014. Interest under the Ergon Paline Note is computed at a fixed rate equal to 6.00% per annum.
	Lion Term Loan
	Our subsidiary, Lion Oil, has a term loan credit facility (the "Lion Term Loan") with Israel Discount Bank of New York, Bank Hapoalim B.M. and Fifth Third Bank as the lenders. The Lion Term Loan was amended on June 23, 2014 to add Fifth Third Bank as an additional lender in the principal amount of $20.0 million, thereby increasing the total loan size to $110.0 million. As of September 30, 2014, $110.0 million was outstanding under the Lion Term Loan. The Lion Term Loan requires Delek to make quarterly amortization payments of $5.5 million each, commencing on December 31, 2014. The Lion Term Loan matures on December 18, 2018, and is secured by (i) all the assets of Lion Oil (excluding inventory and accounts receivable), (ii) all of our shares in Lion Oil, and (iii) a first priority lien on the subordinated and common units of Delek Logistics held by Lion Oil. Interest on the unpaid balance of the Lion Term Loan is computed at a rate per annum equal to the LIBOR Rate or the base rate, at our election, plus the applicable margins, subject in each case to an interest rate floor of 5.50% per annum. As of September 30, 2014, the weighted average borrowing rate under the Lion Term Loan was 5.50%.
	Restrictive Covenants
	Under the terms of our MAPCO Revolver, Wells ABL, DKL Revolver, Reliant Bank Revolver and Lion Term Loan, we are required to comply with certain usual and customary financial and non-financial covenants. Further, although we were not required to comply with a fixed charge coverage ratio financial covenant under the Wells ABL during the three months ended September 30, 2014, we may be required to comply with this covenant at times when the borrowing base excess availability is less than certain thresholds, as defined in the Wells ABL. We believe we were in compliance with all covenant requirements under each of our credit facilities as of September 30, 2014.
	Certain of our credit facilities contain limitations on the incurrence of additional indebtedness, making of investments, creation of liens, dispositions of property, making of restricted payments and transactions with affiliates. Specifically, these covenants may limit the payment, in the form of cash or other assets, of dividends or other distributions, or the repurchase of shares with respect to the equity of our subsidiaries. Additionally, certain of our credit facilities limit our ability to make investments, including extensions of loans or advances to, or acquisitions of equity interests in, or guarantees of obligations of, any other entities.
	Interest-Rate Derivative Instruments
	Delek entered into interest rate swap and cap agreements for a total notional amount of $205.0 million. These agreements are intended to economically hedge floating interest rate risk related to our current debt. However, as we have elected to not apply the permitted hedge accounting treatment, including formal hedge designation and documentation, in accordance with the provisions of ASC 815, Derivatives and Hedging ("ASC 815"), the fair value of the derivatives is recorded in other current assets in the accompanying condensed consolidated balance sheets with the offset recognized in earnings. The derivative instruments mature in 2015 and 2016. The estimated mark-to-market liability associated with our interest rate derivatives, as of September 30, 2014 and December 31, 2013, was $1.4 million and $2.7 million, respectively.
	In accordance with ASC 815, we recorded non-cash income representing the change in estimated fair value of the interest rate swap and cap agreements of $0.6 million and $1.3 million for the three and nine months ended September 30, 2014, respectively, and $0.2 million and $1.4 million for the three and nine months ended September 30, 2013, respectively.
	While Delek has not elected to apply permitted hedge accounting treatment for these interest rate derivatives in accordance with the provisions of ASC 815 in the past, we may choose to apply that treatment for future transactions.

Income_Taxes_Notes

Income Taxes (Notes)	9 Months Ended
	Sep. 30, 2014
Income Taxes [Abstract]	'
Income Taxes	'
	Income Taxes
	At September 30, 2014, Delek had unrecognized tax benefits of $2.4 million that, if recognized, would affect our effective tax rate. Delek recognizes accrued interest and penalties related to unrecognized tax benefits as an adjustment to the current provision for income taxes. Interest of $0.2 million was recognized related to unrecognized tax benefits during both the three and nine months ended September 30, 2014. Interest of a nominal amount was recognized related to unrecognized tax benefits during both the three and nine months ended September 30, 2013.

Stockholders_Equity_Notes

Stockholders' Equity (Notes)	9 Months Ended
	Sep. 30, 2014
Shareholders’ Equity [Abstract]	'
Shareholders' Equity	'
	Stockholders' Equity
	Changes to equity during the nine months ended September 30, 2014 are presented below (in millions):
		Delek Stockholders' Equity			Non-Controlling Interest in Subsidiaries			Total Stockholders' Equity
	Balance at December 31, 2013	$	935		$	185.4		$	1,120.40
	Net income	161.1			19.6			180.7
	Unrealized gain on cash flow hedges, net of deferred income tax expense of $10.4 million and ineffectiveness of $5.4 million	18.4			—			18.4
	Common stock dividends ($0.75 per share)	(44.7		)	—			(44.7		)
	Distribution to non-controlling interest	—			(12.3		)	(12.3		)
	Equity-based compensation expense	9.3			0.7			10
	Purchase of common stock	(41.6		)	—			(41.6		)
	Income tax benefit of equity-based compensation expense	2.3			—			2.3
	Taxes paid due to the net settlement of equity-based compensation	(4.8		)	—			(4.8		)
	Exercise of equity-based awards	1			—			1
	Balance at September 30, 2014	$	1,036.00		$	193.4		$	1,229.40
	Dividends
	During the nine months ended September 30, 2014, our Board of Directors declared the following dividends:
	Date Declared	Dividend Amount Per Share		Record Date	Payment Date
	February 25, 2014	$0.15		March 11, 2014	March 25, 2014
	March 13, 2014	$0.10		April 3, 2014	April 24, 2014
	May 6, 2014	$0.15		May 27, 2014	June 17, 2014
	June 11, 2014	$0.10		June 26, 2014	July 17, 2014
	August 5, 2014	$0.15		August 26, 2014	September 16, 2014
	September 23, 2014	$0.10		October 9, 2014	October 30, 2014
	Stock Repurchase Program
	Our Board of Directors has authorized common stock repurchases in the aggregate amount of $100.0 million. The repurchases may be implemented through open market transactions or in privately negotiated transactions, in accordance with applicable securities laws. The timing, price, and size of repurchases will be made at the discretion of management and will depend upon prevailing market prices, general economic and market conditions and other considerations. The stock repurchase authorizations does not obligate us to acquire any particular amount of stock and any unused portion of the authorizations will expire on December 31, 2014. During the three and nine months ended September 30, 2014, respectively, we repurchased 1,005,657 and 1,265,901 shares of common stock, for a total of $33.7 million and $41.6 million, under the stock repurchase authorizations.

Equity_Based_Compensation_Note

Equity Based Compensation (Notes)	9 Months Ended
	Sep. 30, 2014
Equity Based Compensation [Abstract]	'
Equity Based Compensation	'
	Equity Based Compensation
	Delek US Holdings, Inc. 2006 Long-Term Incentive Plan
	Compensation expense for equity-based awards amounted to $3.0 million ($1.9 million, net of taxes) and $8.5 million ($5.5 million, net of taxes) for the three and nine months ended September 30, 2014, respectively, and $2.2 million ($1.4 million, net of taxes) and $6.5 million ($4.2 million, net of taxes) for the three and nine months ended September 30, 2013, respectively. These amounts are included in general and administrative expenses in the accompanying condensed consolidated statements of income.
	As of September 30, 2014, there was $27.9 million of total unrecognized compensation cost related to non-vested share-based compensation arrangements, which is expected to be recognized over a weighted-average period of 2.5 years.
	We issued 111,488 and 330,624 shares of common stock as a result of exercised stock options, stock appreciation rights, and vested restricted stock units during the three and nine months ended September 30, 2014, respectively, and 80,199 and 517,876 shares of common stock during the three and nine months ended September 30, 2013, respectively. These amounts do not include shares withheld to satisfy employee tax obligations related to the exercises and vestings. These withheld shares totaled 89,834 and 205,821 shares during the three and nine months ended September 30, 2014, respectively, and 104,259 and 368,232 shares during the three and nine months ended September 30, 2013, respectively.
	Delek Logistics, GP, LLC 2012 Long-Term Incentive Plan
	Compensation expense for these awards was $0.4 million ($0.3 million, net of taxes) and $1.2 million ($0.8 million, net of taxes) for the three and nine months ended September 30, 2014, respectively, and $0.5 million ($0.3 million, net of taxes) for both the three and nine months ended September 30, 2013, respectively. These amounts are included in general and administrative expenses in the accompanying condensed consolidated statements of income.
	As of September 30, 2014, there was $4.7 million of total unrecognized compensation cost related to non-vested share-based compensation arrangements, which is expected to be recognized over a weighted-average period of 3.1 years.
	Granting of GP Interest
	On March 10, 2013, we granted membership interests in Logistics GP, the general partner of Delek Logistics, to certain executives, including Ezra Uzi Yemin, our Chairman, President and Chief Executive Officer. These interests consisted of a total 1.4% membership interest in Logistics GP and vested on June 10, 2013. On December 10, 2013, we granted Mr. Yemin an additional 4.0% membership interest in Logistics GP. Half of the 4.0% vested immediately, 0.50% vested on June 10, 2014 and, subject to Mr. Yemin's continued employment with Delek, 0.25% will vest every six months following June 10, 2014 through June 10, 2017. Total compensation expense recognized for these grants amounted to a nominal amount and $0.3 million ($0.2 million, net of taxes) for the three and nine months ended September 30, 2014, respectively. As of September 30, 2014, there was $0.5 million of total unrecognized compensation cost related to non-vested GP membership interests, which is expected to be recognized over a weighted-average period of 2.7 years.

Earnings_Per_Share_Notes

Earnings Per Share (Notes)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	Basic and diluted earnings per share are computed by dividing net income by the weighted average common shares outstanding. The common shares used to compute Delek’s basic and diluted earnings per share are as follows:
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
		2014	2013	2014	2013
	Weighted average common shares outstanding	58,744,099	59,093,721	59,090,291	59,195,337
	Dilutive effect of equity instruments	558,689	633,523	583,308	902,300
	Weighted average common shares outstanding, assuming dilution	59,302,788	59,727,244	59,673,599	60,097,637
	Outstanding common share equivalents totaling 1,476,368 and 1,815,193 were excluded from the diluted earnings per share calculation for the three and nine months ended September 30, 2014, respectively, compared to 1,233,250 excluded for both the three and nine months ended September 30, 2013, as these common share equivalents did not have a dilutive effect under the treasury stock method.

Segment_Data_Notes

Segment Data (Notes)	9 Months Ended
	Sep. 30, 2014
Segment Data [Abstract]	'
Segment Data	'
	Segment Data
	We report our operating results in three reportable segments: refining, logistics and retail. Decisions concerning the allocation of resources and assessment of operating performance are made based on this segmentation. Management measures the operating performance of each reportable segment based on the segment contribution margin.
	In conjunction with the Tyler Acquisition and the El Dorado Acquisition, we reclassified the components of certain operating segments. The results of the operations of the assets associated with these acquisitions were previously reported as part of our refining segment and are now reported in our logistics segment. The historical results of the operations of these assets have been reclassified to conform to the current presentation.
	Effective April 1, 2014, we revised the structure of the internal financial information reviewed by management and began allocating the results of hedging activity previously reported in corporate, other and eliminations to our refining segment. The historical results of this hedging activity have been reclassified to conform to the current presentation. The assets and/or liabilities associated with this hedging activity have not been allocated to the refining segment.
	Segment contribution margin is defined as net sales less cost of sales and operating expenses, excluding depreciation and amortization. Operations which are not specifically included in the reportable segments are included in the corporate and other category, which primarily consists of operating expenses associated with ancillary company operations and intercompany eliminations.
	The refining segment processes crude oil and other purchased feedstocks for the manufacture of transportation motor fuels, including various grades of gasoline, diesel fuel, aviation fuel, asphalt and other petroleum-based products that are distributed through both our own and third-party product terminals and pipelines. The refining segment has a combined nameplate capacity of 140,000 bpd, comprised of 60,000 bpd at the Tyler refinery and 80,000 bpd at the El Dorado refinery. The refining segment also operates two biodiesel facilities.
	Our logistics segment owns and operates crude oil and refined products logistics and marketing assets. The logistics segment generates revenue and subsequently contribution margin, which we define as net sales less cost of goods sold and operating expenses, by charging fees for gathering, transporting and storing crude oil and for marketing, distributing, transporting and storing refined products.
	Our retail segment markets gasoline, diesel, other refined petroleum products and convenience store merchandise through a network of company-operated retail fuel and convenience stores throughout the southeastern United States. As of September 30, 2014, we had 366 stores in total, consisting of 198 located in Tennessee, 91 in Alabama, 48 in Georgia, 13 in Arkansas, 8 in Virginia, 5 in Kentucky and 3 in Mississippi. The retail fuel and convenience stores operate under our MAPCO Express®, MAPCO Mart®, East Coast®, Fast Food and FuelTM, Favorite Markets®, Delta Express® and Discount Food MartTM brands. The retail segment also supplied fuel to approximately 44 dealer locations as of September 30, 2014. In the retail segment, management reviews operating results on a divisional basis, where a division represents a specific geographic market. These divisional operating segments exhibit similar economic characteristics, generally provide the same products and services, and operate in a manner such that aggregation of these operations is appropriate for segment presentation.
	Our refining segment has a services agreement with our logistics segment, which, among other things, requires the refining segment to pay service fees based on the number of gallons sold at the Tyler refinery and a sharing of a portion of the margin achieved in return for providing marketing, sales and customer services. This intercompany transaction fee was $3.6 million and $10.7 million during the three and nine months ended September 30, 2014, respectively, and $3.6 million and $10.3 million during the three and nine months ended September 30, 2013, respectively. Additionally, the refining segment pays transportation and storage fees to the logistics segment for the utilization of certain crude and finished product pipeline and tank assets. These fees were $24.9 million and $70.0 million during the three and nine months ended September 30, 2014, respectively, and $15.7 million and $39.4 million during the three and nine months ended September 30, 2013, respectively. The refining segment sold finished product and services to the retail and logistics segments in the amount of $183.8 million and $478.4 million during the three and nine months ended September 30, 2014, respectively, and $136.8 million and $319.4 million during the three and nine months ended September 30, 2013, respectively. All inter-segment transactions have been eliminated in consolidation.
	The following is a summary of business segment operating performance as measured by contribution margin for the period indicated (in millions):
			Three Months Ended September 30, 2014
			Refining			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations
	Net sales (excluding intercompany fees and sales)		$	1,618.40		$	505.1		$	198.2		$	0.5		$	2,322.20
	Intercompany fees and sales		183.8			—			29.8			(213.6		)	—
	Operating costs and expenses:
	Cost of goods sold		1,598.50			452.3			194.1			(209.7		)	2,035.20
	Operating expenses		52.6			36.4			10.2			1.7			100.9
	Segment contribution margin		$	151.1		$	16.4		$	23.7		$	(5.1	)	186.1
	General and administrative expenses														36
	Depreciation and amortization														29.2
	Operating income														$	120.9
	Total assets		$	2,085.50		$	462.2		$	296.2		$	213.7		$	3,057.60
	Capital spending (excluding business combinations)		$	30		$	6.9		$	0.8		$	2.2		$	39.9
			Three Months Ended September 30, 2013
			Refining(1)			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations(1)
	Net sales (excluding intercompany fees and sales)		$	1,615.00		$	484.1		$	222.3		$	0.4		$	2,321.80
	Intercompany fees and sales		136.8			—			21			(157.8		)	—
	Operating costs and expenses:
	Cost of goods sold		1,666.30			434.3			218.2			(151.5		)	2,167.30
	Operating expenses		56.4			33.2			9			(1.5		)	97.1
	Segment contribution margin		$	29.1		$	16.6		$	16.1		$	(4.4	)	57.4
	General and administrative expenses														24
	Depreciation and amortization														20.6
	Other operating income														(0.1		)
	Operating income														$	12.9
	Total assets		$	1,747.50		$	437.4		$	313		$	250.3		$	2,748.20
	Capital spending (excluding business combinations)		$	31.2		$	9.5		$	2.7		$	9.4		$	52.8
			Nine Months Ended September 30, 2014
			Refining			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations
	Net sales (excluding intercompany fees and sales)		$	4,533.20		$	1,445.30		$	583.9		$	0.2		$	6,562.60
	Intercompany fees and sales		478.4			—			84			(562.4		)	—
	Operating costs and expenses:
	Cost of goods sold		4,468.20			1,302.90			562.9			(547.2		)	5,786.80
	Operating expenses		169.2			103.4			29.1			(0.1		)	301.6
	Segment contribution margin		$	374.2		$	39		$	75.9		$	(14.9	)	474.2
	General and administrative expenses														97.6
	Depreciation and amortization														82
	Operating income														$	294.6
	Capital spending (excluding business combinations)		$	157.3		$	20		$	2.8		$	13.2		$	193.3
			Nine Months Ended September 30, 2013
			Refining(1)			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations(1)
	Net sales (excluding intercompany fees and sales)		$	4,710.30		$	1,426.80		$	631.2		$	0.8		$	6,769.10
	Intercompany fees and sales		319.4			—			53.1			(372.5		)	—
	Operating costs and expenses:
	Cost of goods sold		4,565.80			1,287.40			614			(356.6		)	6,110.60
	Operating expenses		166.5			98.9			28			(2.3		)	291.1
	Segment contribution margin		$	297.4		$	40.5		$	42.3		$	(12.8	)	367.4
	General and administrative expenses														79.7
	Depreciation and amortization														64.2
Other operating income														(1.6		)
Operating income														$	225.1
Capital spending (excluding business combinations)		$	62.3		$	21.6		$	9.8		$	23.6		$	117.3
(1)	Hedging activity previously reported in corporate, other and eliminations has been allocated to the refining segment.
Property, plant and equipment and accumulated depreciation as of September 30, 2014 and depreciation expense by reporting segment for the three and nine months ended September 30, 2014 are as follows (in millions):
		Refining			Logistics			Retail			Corporate,			Consolidated
											Other and Eliminations
Property, plant and equipment		$	1,057.60		$	267.4		$	507.8		$	48.4		$	1,881.20
Less: Accumulated depreciation		(235.9		)	(49.3		)	(187.7		)	(8.0		)	(480.9		)
Property, plant and equipment, net		$	821.7		$	218.1		$	320.1		$	40.4		$	1,400.30
Depreciation expense for the three months ended September 30, 2014		$	17.2		$	3.5		$	7		$	1.1		$	28.8
Depreciation expense for the nine months ended September 30, 2014		$	46.4		$	10		$	21.2		$	3.4		$	81
In accordance with ASC 360, Property, Plant & Equipment, Delek evaluates the realizability of property, plant and equipment as events occur that might indicate potential impairment.

Fair_Value_Measurements_Notes

Fair Value Measurements (Notes)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The fair values of financial instruments are estimated based upon current market conditions and quoted market prices for the same or similar instruments. Management estimates that the carrying value approximates fair value for all of Delek’s assets and liabilities that fall under the scope of ASC 825, Financial Instruments.
	Delek applies the provisions of ASC 820, Fair Value Measurements ("ASC 820"), which defines fair value, establishes a framework for its measurement and expands disclosures about fair value measurements. ASC 820 applies to our interest rate and commodity derivatives that are measured at fair value on a recurring basis. The standard also requires that we assess the impact of nonperformance risk on our derivatives. Nonperformance risk is not considered material at this time.
	ASC 820 requires disclosures that categorize assets and liabilities measured at fair value into one of three different levels depending on the observability of the inputs employed in the measurement. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included within Level 1 for the asset or liability, either directly or indirectly through market-corroborated inputs. Level 3 inputs are unobservable inputs for the asset or liability reflecting our assumptions about pricing by market participants.
	Over the counter ("OTC") commodity swaps, physical commodity purchase and sale contracts and interest rate swaps and caps are generally valued using industry-standard models that consider various assumptions, including quoted forward prices, spot prices, interest rates, time value, volatility factors and contractual prices for the underlying instruments, as well as other relevant economic measures. The degree to which these inputs are observable in the forward markets determines the classification as Level 2 or 3. Our contracts are valued using quotations provided by brokers based on exchange pricing and/or price index developers such as Platts or Argus and are, therefore, classified as Level 2.
	The fair value hierarchy for our financial assets and liabilities accounted for at fair value on a recurring basis at September 30, 2014 and December 31, 2013, was as follows (in millions):
		As of September 30, 2014
		Level 1		Level 2			Level 3		Total
	Assets
	Commodity derivatives	$	—	$	111.3		$	—	$	111.3
	Liabilities
	Commodity derivatives	—		(52.2		)	—		(52.2		)
	Interest rate derivatives	—		(1.4		)	—		(1.4		)
	Total liabilities	—		(53.6		)	—		(53.6		)
	Net assets	$	—	$	57.7		$	—	$	57.7
		As of December 31, 2013
		Level 1		Level 2			Level 3		Total
	Assets
	Commodity derivatives	$	—	$	23.9		$	—	$	23.9
	Interest rate derivatives	—		0.1			—		0.1
	Total assets	—		24			—		24
	Liabilities
	Commodity derivatives	—		(24.9		)	—		(24.9		)
	Interest rate derivatives	—		(2.8		)	—		(2.8		)
	Total liabilities	—		(27.7		)	—		(27.7		)
	Net liabilities	$	—	$	(3.7	)	$	—	$	(3.7	)
	The derivative values above are based on analysis of each contract as the fundamental unit of account as required by ASC 820. Derivative assets and liabilities with the same counterparty are not netted where the legal right of offset exists. This differs from the presentation in the financial statements which reflects our policy under the guidance of ASC 815-10-45, wherein we have elected to offset the fair value amounts recognized for multiple derivative instruments executed with the same counterparty and where the legal right of offset exists. As of September 30, 2014 and December 31, 2013, $4.1 million and $2.6 million, respectively, of cash collateral was held by counterparty brokerage firms and has been netted with the derivative positions with each counterparty.

Derivative_Instruments_Notes

Derivative Instruments (Notes)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments [Abstract]	'
Derivative Instruments	'
	Derivative Instruments
	We use derivatives to reduce normal operating and market risks with the primary objective of reducing the impact of market price volatility on our results of operations. As such, our use of derivatives is aimed at:
	•	limiting the exposure to price fluctuations of commodity inventory above or below target levels at each of our segments;
	•	managing our exposure to commodity price risk associated with the purchase or sale of crude oil, feedstocks and finished grade fuel products at each of our segments; and
	•	limiting the exposure to floating-interest rate fluctuations on our borrowings.
	We primarily utilize OTC commodity swaps, generally with maturity dates of three years or less, and interest rate swap and cap agreements to achieve these objectives. OTC commodity swap contracts require cash settlement for the commodity based on the difference between a fixed or floating price and the market price on the settlement date. Interest rate swap and cap agreements economically hedge floating rate debt by exchanging interest rate cash flows, based on a notional amount from a floating rate to a fixed rate. At this time, we do not believe there is any material credit risk with respect to the counterparties to these contracts.
	In accordance with ASC 815, certain of our OTC commodity swap contracts have been designated as cash flow hedges and the change in fair value between the execution date and the end of period has been recorded in other comprehensive income. The fair value of these contracts is recognized in income at the time the positions are closed and the hedged transactions are recognized in income.
	From time to time, we also enter into futures contracts with supply vendors that secure supply of product to be purchased for use in the normal course of business at our refining and retail segments. These contracts are priced based on an index that is clearly and closely related to the product being purchased, contain no net settlement provisions and typically qualify under the normal purchase exemption from derivative accounting treatment under ASC 815.
	The following table presents the fair value of our derivative instruments, as of September 30, 2014 and December 31, 2013. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under our master netting arrangements, including cash collateral on deposit with our counterparties. We have elected to offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements. As a result, the asset and liability amounts below will differ from the amounts presented in our condensed consolidated balance sheets (in millions):
				September 30, 2014							December 31, 2013
	Derivative Type	Balance Sheet Location		Assets			Liabilities				Assets			Liabilities
	Derivatives not designated as hedging instruments:
	OTC commodity swaps(1)	Other current assets		$	49.1		$	(35.5	)		$	17.4		$	(8.6	)
	OTC commodity swaps(1)	Other current liabilities		—			—				—			(3.4		)
	OTC commodity swaps(1)	Other long term assets		22.4			(2.7		)		—			—
	Interest rate derivatives	Other current assets		—			(1.4		)		—			—
	Interest rate derivatives	Other long term assets		—			—				0.1			—
	Interest rate derivatives	Other long term liabilities		—			—				—			(2.8		)
	Derivatives designated as hedging instruments:
	OTC commodity swaps(1)	Other current assets		34.5			(13.8		)		3.5			(3.2		)
	OTC commodity swaps(1)	Other long term assets		5.3			(0.2		)		—			—
	OTC commodity swaps(1)	Other long term liabilities		—			—				3			(9.7		)
	Total gross fair value of derivatives			$	111.3		$	(53.6	)		$	24		$	(27.7	)
	Less: Counterparty netting and cash collateral(2)			49.5			(53.6		)		14.2			(16.8		)
	Less: Amounts subject to master netting arrangements that are not netted on the balance sheet			$	—		$	—			$	6		$	(6.0	)
	Total net fair value of derivatives			$	61.8		$	—			$	3.8		$	(4.9	)
	(1)	As of September 30, 2014 and December 31, 2013, we had open derivative contracts representing 15,468,250 barrels and 7,703,000 barrels, respectively, of crude oil and refined petroleum products. Of these open contracts, contracts representing 2,728,000 barrels and 5,186,000 barrels were designated as hedging instruments as of September 30, 2014 and December 31, 2013, respectively.
	(2)	As of September 30, 2014 and December 31, 2013, $4.1 million and $2.6 million, respectively, of cash collateral has been netted with the derivative positions with each counterparty. Included in these amounts is $2.0 million of cash collateral associated with our interest rate derivatives as of both September 30, 2014 and December 31, 2013.
	For the three and nine months ended September 30, 2014, we recognized total gains on our commodity derivatives of $29.7 million and $70.7 million, respectively. For the three and nine months ended September 30, 2013, we recognized losses of $10.3 million and $8.7 million, respectively. The gains and losses on commodity derivatives were recorded in cost of goods sold on the condensed consolidated statement of income.
	Recognized gains (losses) associated with derivatives not designated as hedging instruments for the three and nine months ended September 30, 2014 and 2013 are as follows (in millions):
				Three Months Ended September 30,							Nine Months Ended September 30,
	Derivative Type	Income Statement Location		2014			2013				2014			2013
	OTC commodity swaps	Cost of goods sold		$	44.5		$	(11.5	)		$	73.3		$	(10.5	)
	Interest rate derivatives	Interest expense		0.6			0.2				1.3			1.4
		Total		$	45.1		$	(11.3	)		$	74.6		$	(9.1	)
	Gains on our derivatives designated as cash flow hedging instruments for the three and nine months ended September 30, 2014 and 2013 are as follows (in millions):
			Three Months Ended September 30,							Nine Months Ended September 30,
			2014			2013				2014			2013
	OTC commodity swaps:
	(Loss) gain recognized in OCI (effective portion)		$	(13.5	)	$	7.1			$	24.2		$	7.1
	(Loss) gain reclassified from accumulated OCI into cost of goods sold on closed positions (effective portion)		$	(5.9	)	$	—			$	(8.0	)	$	0.6
	(Loss) gain recognized in cost of goods sold related to ineffectiveness		$	(8.9	)	$	1.2			$	5.4		$	1.2
	For cash flow hedges, no component of the derivative instruments’ gains or losses was excluded from the assessment of hedge effectiveness for the three and nine months ended September 30, 2014 or 2013. As of September 30, 2014 and December 31, 2013, gains (losses) of $14.4 million and $(4.0) million, respectively, on cash flow hedges, net of tax, primarily related to future purchases of crude oil and the associated sale of finished grade fuel, remained in accumulated other comprehensive income. Losses of $3.9 million and $5.2 million, net of tax, on settled contracts were reclassified into cost of sales during the three and nine months ended September 30, 2014. Gains of $0.4 million, net of tax, on settled contracts were reclassified into cost of sales during the nine months ended September 30, 2013. We estimate that $19.4 million of these deferred gains will be reclassified into cost of sales over the next 12 months as a result of hedged transactions that are forecasted to occur. There were no amounts reclassified from accumulated other comprehensive income into income as a result of the discontinuation of cash flow hedge accounting for the three or nine months ended September 30, 2014 or 2013.

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Litigation
	In the ordinary conduct of our business, we are from time to time subject to lawsuits, investigations and claims, including environmental claims and employee-related matters.
	Although we cannot predict with certainty the ultimate resolution of lawsuits, investigations and claims asserted against us, including civil penalties or other enforcement actions, we do not believe that any currently pending legal proceeding or proceedings to which we are a party will have a material adverse effect on our business, financial condition or results of operations.
	Self-insurance
	Delek is self-insured for workers’ compensation claims up to $1.0 million on a per-accident basis. We self-insure for general liability claims, inclusive of sudden and accidental pollution claims, up to $4.0 million on a per-occurrence basis. We self-insure for auto liability up to $4.0 million on a per-accident basis.
	We have umbrella liability insurance available to each of our segments in an amount determined reasonable by management.
	Rate Regulation of Petroleum Pipelines
	The rates and terms and conditions of service on certain of our pipelines may be subject to regulation by the Federal Energy Regulatory Commission ("FERC") under the Interstate Commerce Act ("ICA") or by the state regulatory commissions in the states in which we transport crude oil and refined products, including the Railroad Commission of Texas, the Louisiana Public Service Commission, and the Arkansas Public Service Commission. Certain of our pipeline systems are subject to such regulation and have filed tariffs with the appropriate authorities. We also comply with the reporting requirements for these pipelines. Other of our pipelines have received a waiver from FERC's tariff requirements but comply with other applicable regulatory requirements.
	FERC regulates interstate transportation under the ICA, the Energy Policy Act of 1992 and the rules and regulations promulgated under those laws. The ICA and its implementing regulations require that tariff rates for interstate service on oil pipelines, including pipelines that transport crude oil and refined products in interstate commerce (collectively referred to as "petroleum pipelines"), be just and reasonable and non-discriminatory and that such rates and terms and conditions of service be filed with FERC. Under the ICA, shippers may challenge new or existing rates or services. FERC is authorized to suspend the effectiveness of a challenged rate for up to seven months.
	While FERC regulates rates for shipments of crude oil or refined products in interstate commerce, state agencies may regulate rates and service for shipments in intrastate commerce. We own pipeline assets in Texas, Arkansas and Louisiana; accordingly, such assets may be subject to additional regulation by the applicable governmental authorities in those states.
	Environmental, Health and Safety
	We are subject to various federal, state and local environmental and safety laws enforced by agencies including the United States Environmental Protection Agency (the "EPA"), the United States Department of Transportation/Pipeline and Hazardous Materials Safety Administration, the Occupational Safety and Health Administration, the Texas Commission on Environmental Quality, the Railroad Commission of Texas, the Arkansas Department of Environmental Quality and the Tennessee Department of Environment and Conservation as well as other state and federal agencies. Numerous permits or other authorizations are required under these laws for the operation of our refineries, terminals, pipelines, underground storage tanks ("USTs") and related operations, and may be subject to revocation, modification and renewal.
	These laws and permits raise potential exposure to future claims and lawsuits involving environmental and safety matters which could include soil and water contamination, air pollution, personal injury and property damage allegedly caused by substances which we manufactured, handled, used, released or disposed of, or that relate to pre-existing conditions for which we have assumed responsibility. We believe that our current operations are in substantial compliance with existing environmental and safety requirements. However, there have been and will continue to be ongoing discussions about environmental and safety matters between us and federal and state authorities, including notices of violations, citations and other enforcement actions, some of which have resulted or may result in changes to operating procedures and in capital expenditures. While it is often difficult to quantify future environmental or safety related expenditures, we anticipate that continuing capital investments and changes in operating procedures will be required for the foreseeable future to comply with existing and new requirements as well as evolving interpretations and more strict enforcement of existing laws and regulations.
	The Comprehensive Environmental Response, Compensation and Liability Act, also known as Superfund, imposes liability, without regard to fault or the legality of the original conduct, on certain classes of persons who are considered to be responsible for the release of a hazardous substance into the environment. Analogous state laws impose similar responsibilities and liabilities on responsible parties. In the course of our ordinary operations, our various businesses generate waste, some of which falls within the statutory definition of a hazardous substance and some of which may have been disposed of at sites that may require future cleanup under Superfund. At this time, our El Dorado refinery has been named as a minor potentially responsible party at one site for which we believe future costs will not be material.
	As of September 30, 2014, we have recorded an environmental liability of approximately $9.6 million, primarily related to the probable estimated costs of remediating or otherwise addressing certain environmental issues of a non-capital nature at the Tyler and El Dorado refineries. This liability includes estimated costs for ongoing investigation and remediation efforts, which were already being performed by the former operators of the Tyler and El Dorado refineries prior to our acquisition of those facilities, for known contamination of soil and groundwater, as well as estimated costs for additional issues which have been identified subsequent to the acquisition. We expect approximately $0.5 million of this amount to be reimbursable by a prior owner of the El Dorado refinery and have recorded $0.1 million in other current assets and $0.4 million in other non-current assets in our condensed consolidated balance sheet as of September 30, 2014. Approximately $1.0 million of the total liability is expected to be expended over the next 12 months with most of the balance expended by 2022. In the future, we could be required to extend the expected remediation period or undertake additional investigations of our refineries, pipelines and terminal facilities or convenience stores, which could result in additional remediation liabilities.
	Most of the cost of remediating releases from USTs in our retail segment is reimbursed by state reimbursement funds which are funded by a tax on petroleum products and subject to certain deductible amounts. As of September 30, 2014, our accrual for such UST-related remediation was less than $0.1 million.
	The EPA issued final rules for gasoline formulation that required the reduction of average benzene content by January 1, 2011 and the reduction of maximum annual average benzene content by July 1, 2012. We completed a project at the Tyler refinery in the fourth quarter of 2010 to partially reduce gasoline benzene levels. However, it is necessary for us to purchase credits to fully comply with these content requirements for the Tyler refinery. Although credits have been acquired that we believe will be sufficient to cover our obligations through at least 2016, there can be no assurance that such credits will be available in the future or that we will be able to purchase available credits at reasonable prices. Additional benzene reduction projects may be implemented to reduce or eliminate our need to purchase benzene credits depending on the availability and cost of such credits.
	Various legislative and regulatory measures to address climate change and greenhouse gas ("GHG") emissions (including carbon dioxide, methane and nitrous oxides) are in various phases of discussion or implementation. They include proposed and enacted federal regulation and state actions to develop statewide, regional or nationwide programs designed to control and reduce GHG emissions from fixed sources, such as our refineries, as well as mobile transportation sources and fuels. We are not aware of any state or regional initiatives for controlling existing GHG emissions that would affect our refineries. Although it is not possible to predict the requirements of any GHG legislation that ultimately may be enacted, any laws or regulations that have been or may be adopted to restrict or reduce GHG emissions will likely require us to incur increased operating and capital costs. The EPA also has indicated that it intends to regulate refinery GHG emissions from new and existing sources through a New Source Performance Standard ("NSPS"), although there is no firm proposal or date for such regulation.
	Since the 2010 calendar year, EPA rules require us to report GHG emissions from our refinery operations and consumer use of fuel products produced at our refineries on an annual basis. While the cost of compliance with the reporting rule is not material, data gathered under the rule may be used in the future to support additional regulation of GHG. Effective January 2011, the EPA began regulating GHG emissions from refineries and other major sources through the Prevention of Significant Deterioration ("PSD") and Federal Operating Permit ("Title V") programs. While these rules do not impose any limits or controls on GHG emissions from current operations, emission increases from future projects or operational changes, such as capacity increases, may be impacted and required to meet emission limits or technological requirements such as Best Available Control Technologies ("BACT"). In June 2014, the United States Supreme Court ruled that the EPA may not require PSD and Title V permits solely because of GHG emissions, but may require BACT for GHG emissions if emissions of other pollutants would otherwise require PSD permitting. We believe this decision will not materially affect permitting issues for our operations.
	In mid-2012, the EPA announced an industry-wide enforcement initiative directed at flaring operations and performance at refineries and petrochemical plants. In September 2012, the EPA finalized revisions to the NSPS for Petroleum Refineries ("NSPS Subpart Ja") that primarily affects flares and process heaters. We believe our existing process heaters meet the applicable requirements and our refineries have not received any associated inquiries or requests for information, nor are they a party to any associated enforcement action at this time. Affected flares have three years to comply with the new standard, and it is likely the standard will impact the way some flares at our Tyler and El Dorado refineries are designed and/or operated. We are planning capital projects at our refineries related to flare compliance with NSPS Subpart Ja that will be implemented in 2014-2016.
	In June 2014, the EPA proposed rules to further regulate refinery air emissions through additional NSPS and Maximum Achievable Control Technology requirements. The proposed rules would require capital expenditures for additional controls on the Tyler refinery’s coker and for the relief systems, flares, tanks and other sources at both refineries, as well as requiring changes to the way we operate or start up some process units. The proposed rule would also require that we monitor property line benzene concentrations and provide the results to the EPA, which will make the results available to the public. The EPA anticipates finalizing the proposed rules in April 2015 with approximately three years to comply with most of the requirements. If the proposed rules are finalized, we do not anticipate that any required capital and operating costs will be material and do not believe compliance will affect our production capacities or have a material adverse effect upon our business, financial condition or results of operations.
	The Energy Independence and Security Act of 2007 ("EISA") increased the amounts of renewable fuel required to be blended into domestic transportation fuel supplies by the Energy Policy Act of 2005 to 32 billion gallons by 2022. The Renewable Fuel Standard - 2 (RFS-2) rule finalized by the EPA in 2010 to implement EISA, requires that most refiners blend increasing amounts of biofuels with refined products, equal to approximately 9.2% of combined gasoline and diesel volume in 2012, increasing to 9.6% in 2013 and escalating annually to approximately 18% by 2022. Because the mandate requires specified volumes of biofuels, if the demand for motor fuels decreases in future years, even higher percentages of biofuels may be required. Alternatively, credits called Renewable Identification Numbers ("RINs") can be used instead of physically blending biofuels. The Tyler refinery began supplying a 10% ethanol gasoline blend (E-10) in January 2008 and 5% biodiesel blends in June 2011. The El Dorado refinery completed projects at its truck loading rack in June 2011 to make E-10 available and in July 2012 to make biodiesel blends available. In 2013, we internally generated, through our logistics, retail and refining segments, most of the RINs required to meet the obligations of our refineries, including a carryover of 2012 RINs, with a net surplus of biodiesel RINs that were available to be sold to purchase RINs in other categories.
	The EPA has proposed slightly lower overall renewable fuel obligations for 2014 in recognition of blending issues associated with exceeding the 10% "blendwall" in gasoline; however, the EPA is not expected to finalize the required volumes until sometime in the fourth quarter of 2014. The EPA could require increased volumes compared with the proposed volumes. If the volumes in the proposed rule are finalized, it is likely we will obtain most of the RINs required for 2014 compliance through internal operations of our refineries and other business units. If the final rule requires higher volumes than proposed, it will likely be necessary for our refineries to purchase RINs in the market, but it is not possible at this time to predict what those volumes may be.
	In March 2013, the EPA proposed Tier 3 gasoline rules, which were finalized in March 2014. As proposed, the final Tier 3 rule requires a reduction in annual average gasoline sulfur content from 30 ppm to 10 ppm and retains the current maximum per-gallon sulfur content of 80 ppm. Larger refineries must comply with the 10 ppm sulfur standard by January 1, 2017 but the final rule provides a three-year waiver period, to January 1, 2020, for small volume refineries that processed less than 75,000 bpd in 2011 or 2012. Both our Tyler and Lion Oil refineries meet this waiver provision and will have an additional three years to comply. We anticipate that the Tyler refinery will meet these new limits when they become effective with only minor operational changes and that a minor capital project may be required for additional sulfur removal capacity at the El Dorado refinery.
	Following the November 2008 explosion and fire at the Tyler refinery, the EPA conducted an investigation under Section 114 of the Clean Air Act pertaining to our compliance with the chemical accident prevention standards. In late 2011, the EPA referred an enforcement action to the DOJ and in September 2014 we settled this matter through a Consent Decree that has been lodged with the court. The Consent Decree requires Delek to pay a penalty of $0.5 million and make a minor change to its written inspection procedures. The Consent Decree has no effect on production at the refinery and no cost implications other than the penalty amount.
	We have detected several crude oil releases from pipelines owned by our logistics segment, including a release at Magnolia Station in March 2013, a release near Macedonia, Arkansas in October 2013 and a release in Haynesville, Louisiana in April 2014. Based on current information available to us, we do not believe the total costs associated with these events, whether alone or in the aggregate, including any fines or penalties and net of partial insurance reimbursement, will have a material adverse effect upon our business, financial condition or results of operations.
	Vendor Commitments
	We maintain an agreement with a significant vendor that requires our retail segment to purchase certain general merchandise exclusively from this vendor over a specified period of time. Additionally, we maintain agreements with certain fuel suppliers that contain terms which generally require our retail segment to purchase predetermined quantities of third-party branded fuel for a specified period of time. In certain fuel vendor contracts, penalty provisions exist if our retail segment does not purchase certain minimum quantities of fuel.
	Letters of Credit
	As of September 30, 2014, we had in place letters of credit totaling approximately $123.2 million with various financial institutions securing obligations primarily with respect to our workers’ compensation and general liability self-insurance programs, crude oil purchases for the refining segment and gasoline and diesel purchases for the logistics segment. No amounts were drawn by beneficiaries of these letters of credit at September 30, 2014.

Subsequent_Events_Notes

Subsequent Events (Notes)	9 Months Ended
	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	Dividend Declaration
	On November 4, 2014, our Board of Directors voted to declare a quarterly cash dividend of $0.15 per share, payable on December 16, 2014 to shareholders of record on November 25, 2014.
	Terminal and Pipeline Acquisition
	On October 1, 2014, Delek Logistics purchased (i) a light products terminal in Mount Pleasant, Texas (the "Mount Pleasant Terminal"), (ii) a light products storage facility in Greenville, Texas (the "Greenville Storage Facility") and (iii) a 76-mile pipeline connecting the locations (the "Greenville-Mount Pleasant Pipeline"). The Mount Pleasant Terminal, the Greenville Storage Facility and the Greenville-Mount Pleasant Pipeline are hereinafter collectively referred to as the "Greenville-Mount Pleasant Assets." Delek Logistics acquired the Greenville-Mount Pleasant Assets from an affiliate of Magellan Midstream Partners, L.P. to complement our existing assets and provide enhanced logistical capabilities. The Mount Pleasant Terminal consists of approximately 200,000 barrels of light product storage capacity, three truck loading lanes and ethanol blending capability. The Greenville Storage Facility has approximately 325,000 barrels of storage capacity and is connected to the Explorer Pipeline System. The aggregate purchase price was approximately $11.1 million in cash, including $1.1 million in finished product inventory, comprised of cash on hand and borrowings under the DKL Revolver. The purchase price has been preliminarily allocated to inventory and property, plant and equipment. The property, plant and equipment valuation is subject to change during the purchase price allocation period.

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2014
Organization and Basis of Presentation [Abstract]	'
Consolidation of variable interest entity policy	'
	Our condensed consolidated financial statements include Delek Logistics Partners, LP ("Delek Logistics"), a variable interest entity. Because our consolidated subsidiary, Delek Logistics GP, LLC ("Logistics GP"), is the general partner of Delek Logistics, we have the ability to direct the activities of Delek Logistics that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are Delek Logistics' primary customer. Delek Logistics does not derive an amount of gross margin material to us from third parties. However, in the event that Delek Logistics incurs a loss, our operating results will reflect Delek Logistics' loss, net of intercompany eliminations, to the extent of our ownership interest in Delek Logistics.
Basis of Accounting, Policy	'
	Our unaudited condensed consolidated financial statements have been prepared in conformity with GAAP applied on a consistent basis with those of the annual audited financial statements included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on March 3, 2014, as amended by Amendment No. 1 on Form 10-K/A that was filed with the SEC on June 26, 2014 (collectively, the "Annual Report on Form 10-K") and in accordance with the rules and regulations of the SEC.
Consolidation, Policy	'
	All significant intercompany transactions and account balances have been eliminated in consolidation. All adjustments are of a normal, recurring nature.
Use of estimates policy	'
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
New accounting pronouncements	'
	New Accounting Pronouncements
	On January 1, 2014 we adopted guidance issued by the Financial Accounting Standards Board regarding "Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" to eliminate diversity in practice. This guidance requires that companies net their unrecognized tax benefits against all same-jurisdiction net operating losses or tax credit carryforwards that would be used to settle the position with a tax authority. The adoption of this guidance did not materially affect our business, financial position or results of operations.

Inventory_Policies

Inventory (Policies)	9 Months Ended
	Sep. 30, 2014
Inventory [Abstract]	'
Inventory policy	'
	Refinery inventory consists of crude oil, in-process, refined products and blendstocks which are stated at the lower of cost or market. Cost of inventory for the Tyler refinery is determined under the last-in, first-out ("LIFO") valuation method. Cost of inventory for the El Dorado refinery is determined on a first-in, first-out ("FIFO") basis. Cost of crude oil, in-process, refined product and feedstock inventories in excess of market value is charged to cost of goods sold.
	Logistics inventory consists of refined products which are stated at the lower of cost or market on a FIFO basis.
	Retail inventory consists of gasoline, diesel fuel, other petroleum products, cigarettes, beer, convenience merchandise and food service merchandise. Fuel inventories are stated at the lower of cost or market on a FIFO basis. Non-fuel inventories are stated at estimated cost as determined by the retail inventory method.

Segment_Data_Segment_Data_Poli

Segment Data Segment Data (Policies)	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Property, Plant and Equipment, Policy [Policy Text Block]	'
	In accordance with ASC 360, Property, Plant & Equipment, Delek evaluates the realizability of property, plant and equipment as events occur that might indicate potential impairment.

Fair_Value_Measurements_Polici

Fair Value Measurements (Policies)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Fair value of financial Instruments policy	'
	ASC 820 requires disclosures that categorize assets and liabilities measured at fair value into one of three different levels depending on the observability of the inputs employed in the measurement. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included within Level 1 for the asset or liability, either directly or indirectly through market-corroborated inputs. Level 3 inputs are unobservable inputs for the asset or liability reflecting our assumptions about pricing by market participants.

Delek_Logistics_Partners_LP_Ta

Delek Logistics Partners, LP (Tables)	9 Months Ended
	Sep. 30, 2014
Variable Interest Entity, Measure of Activity [Abstract]	'
Subsidiary balance sheet	'
	With the exception of affiliate balances which are eliminated in consolidation, the Delek Logistics condensed consolidated balance sheets as of September 30, 2014 and December 31, 2013, as presented below, are included in the consolidated balance sheets of Delek.
		September 30,		December 31, 2013(1)
		2014
		(In millions)
		(Unaudited)
	ASSETS
	Cash and cash equivalents	$	0.7	$	0.9
	Accounts receivable	39.6		29
	Inventory	9.8		17.5
	Other current assets	0.7		0.3
	Net property, plant and equipment	218.1		225.8
	Goodwill	11.7		10.5
	Intangible assets, net	11.6		12.3
	Other non-current assets	4		5
	Total assets	$	296.2	$	301.3
	LIABILITIES AND EQUITY
	Accounts payable	$	23.7	$	26
	Accounts payable to related parties	9.5		1.5
	Accrued expenses and other current liabilities	12.7		12.2
	Revolving credit facility	230		164.8
	Asset retirement obligations	3.2		3.1
	Deferred tax liabilities	0.4		0.3
	Other non-current liabilities	5.4		6.2
	Equity	11.3		87.2
	Total liabilities and equity	$	296.2	$	301.3
	(1)These amounts have been restated to reflect the assets and liabilities acquired in the El Dorado Acquisition.

Inventory_Tables

Inventory (Tables)	9 Months Ended
	Sep. 30, 2014
Inventory [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
	Carrying value of inventories consisted of the following (in millions):
		September 30,		December 31,
		2014		2013
	Refinery raw materials and supplies	$	179.5	$	250.9
	Refinery work in process	70.2		58.6
	Refinery finished goods	239.1		299.2
	Retail fuel	17.8		19.2
	Retail merchandise	27.6		26.9
	Logistics refined products	9.8		17.5
	Total inventories	$	544	$	672.3

LongTerm_Obligations_and_Notes1

Long-Term Obligations and Notes Payable (Tables)	9 Months Ended
	Sep. 30, 2014
Long-Term Obligations and Notes Payable [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
	Outstanding borrowings under Delek’s existing debt instruments and capital lease obligations are as follows (in millions):
		September 30,		December 31,
		2014		2013
	MAPCO Revolver	$	92	$	67.5
	DKL Revolver	230		164.8
	Wells Term Loan	70		—
	Reliant Bank Revolver	17		10
	Promissory notes	75		77.4
	Lion Term Loan, net of $0.3 million debt discount at September 30, 2014	109.7		90
	Capital lease obligations	0.5		0.6
		594.2		410.3
	Less: Current portion of long-term debt, notes payable and capital lease obligations	58.4		33.7
		$	535.8	$	376.6

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Shareholders’ Equity [Abstract]	'
Schedule of Stockholders Equity [Table Text Block]	'
	Changes to equity during the nine months ended September 30, 2014 are presented below (in millions):
		Delek Stockholders' Equity			Non-Controlling Interest in Subsidiaries			Total Stockholders' Equity
	Balance at December 31, 2013	$	935		$	185.4		$	1,120.40
	Net income	161.1			19.6			180.7
	Unrealized gain on cash flow hedges, net of deferred income tax expense of $10.4 million and ineffectiveness of $5.4 million	18.4			—			18.4
	Common stock dividends ($0.75 per share)	(44.7		)	—			(44.7		)
	Distribution to non-controlling interest	—			(12.3		)	(12.3		)
	Equity-based compensation expense	9.3			0.7			10
	Purchase of common stock	(41.6		)	—			(41.6		)
	Income tax benefit of equity-based compensation expense	2.3			—			2.3
	Taxes paid due to the net settlement of equity-based compensation	(4.8		)	—			(4.8		)
	Exercise of equity-based awards	1			—			1
	Balance at September 30, 2014	$	1,036.00		$	193.4		$	1,229.40
Schedule of Dividends Payable [Table Text Block]	'
	During the nine months ended September 30, 2014, our Board of Directors declared the following dividends:
	Date Declared	Dividend Amount Per Share		Record Date	Payment Date
	February 25, 2014	$0.15		March 11, 2014	March 25, 2014
	March 13, 2014	$0.10		April 3, 2014	April 24, 2014
	May 6, 2014	$0.15		May 27, 2014	June 17, 2014
	June 11, 2014	$0.10		June 26, 2014	July 17, 2014
	August 5, 2014	$0.15		August 26, 2014	September 16, 2014
	September 23, 2014	$0.10		October 9, 2014	October 30, 2014

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Weighted Average Number of Shares [Table Text Block]	'
	The common shares used to compute Delek’s basic and diluted earnings per share are as follows:
		Three Months Ended		Nine Months Ended
		September 30,		September 30,
		2014	2013	2014	2013
	Weighted average common shares outstanding	58,744,099	59,093,721	59,090,291	59,195,337
	Dilutive effect of equity instruments	558,689	633,523	583,308	902,300
	Weighted average common shares outstanding, assuming dilution	59,302,788	59,727,244	59,673,599	60,097,637

Segment_Data_Tables

Segment Data (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Reporting Information [Line Items]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
	The following is a summary of business segment operating performance as measured by contribution margin for the period indicated (in millions):
			Three Months Ended September 30, 2014
			Refining			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations
	Net sales (excluding intercompany fees and sales)		$	1,618.40		$	505.1		$	198.2		$	0.5		$	2,322.20
	Intercompany fees and sales		183.8			—			29.8			(213.6		)	—
	Operating costs and expenses:
	Cost of goods sold		1,598.50			452.3			194.1			(209.7		)	2,035.20
	Operating expenses		52.6			36.4			10.2			1.7			100.9
	Segment contribution margin		$	151.1		$	16.4		$	23.7		$	(5.1	)	186.1
	General and administrative expenses														36
	Depreciation and amortization														29.2
	Operating income														$	120.9
	Total assets		$	2,085.50		$	462.2		$	296.2		$	213.7		$	3,057.60
	Capital spending (excluding business combinations)		$	30		$	6.9		$	0.8		$	2.2		$	39.9
			Three Months Ended September 30, 2013
			Refining(1)			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations(1)
	Net sales (excluding intercompany fees and sales)		$	1,615.00		$	484.1		$	222.3		$	0.4		$	2,321.80
	Intercompany fees and sales		136.8			—			21			(157.8		)	—
	Operating costs and expenses:
	Cost of goods sold		1,666.30			434.3			218.2			(151.5		)	2,167.30
	Operating expenses		56.4			33.2			9			(1.5		)	97.1
	Segment contribution margin		$	29.1		$	16.6		$	16.1		$	(4.4	)	57.4
	General and administrative expenses														24
	Depreciation and amortization														20.6
	Other operating income														(0.1		)
	Operating income														$	12.9
	Total assets		$	1,747.50		$	437.4		$	313		$	250.3		$	2,748.20
	Capital spending (excluding business combinations)		$	31.2		$	9.5		$	2.7		$	9.4		$	52.8
			Nine Months Ended September 30, 2014
			Refining			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations
	Net sales (excluding intercompany fees and sales)		$	4,533.20		$	1,445.30		$	583.9		$	0.2		$	6,562.60
	Intercompany fees and sales		478.4			—			84			(562.4		)	—
	Operating costs and expenses:
	Cost of goods sold		4,468.20			1,302.90			562.9			(547.2		)	5,786.80
	Operating expenses		169.2			103.4			29.1			(0.1		)	301.6
	Segment contribution margin		$	374.2		$	39		$	75.9		$	(14.9	)	474.2
	General and administrative expenses														97.6
	Depreciation and amortization														82
	Operating income														$	294.6
	Capital spending (excluding business combinations)		$	157.3		$	20		$	2.8		$	13.2		$	193.3
			Nine Months Ended September 30, 2013
			Refining(1)			Retail			Logistics			Corporate,			Consolidated
												Other and Eliminations(1)
	Net sales (excluding intercompany fees and sales)		$	4,710.30		$	1,426.80		$	631.2		$	0.8		$	6,769.10
	Intercompany fees and sales		319.4			—			53.1			(372.5		)	—
	Operating costs and expenses:
	Cost of goods sold		4,565.80			1,287.40			614			(356.6		)	6,110.60
	Operating expenses		166.5			98.9			28			(2.3		)	291.1
	Segment contribution margin		$	297.4		$	40.5		$	42.3		$	(12.8	)	367.4
	General and administrative expenses														79.7
	Depreciation and amortization														64.2
	Other operating income														(1.6		)
	Operating income														$	225.1
	Capital spending (excluding business combinations)		$	62.3		$	21.6		$	9.8		$	23.6		$	117.3
	(1)	Hedging activity previously reported in corporate, other and eliminations has been allocated to the refining segment.
	Property, plant and equipment and accumulated depreciation as of September 30, 2014 and depreciation expense by reporting segment for the three and nine months ended September 30, 2014 are as follows (in millions):
			Refining			Logistics			Retail			Corporate,			Consolidated
												Other and Eliminations
	Property, plant and equipment		$	1,057.60		$	267.4		$	507.8		$	48.4		$	1,881.20
	Less: Accumulated depreciation		(235.9		)	(49.3		)	(187.7		)	(8.0		)	(480.9		)
Property, plant and equipment, net		$	821.7		$	218.1		$	320.1		$	40.4		$	1,400.30
Depreciation expense for the three months ended September 30, 2014		$	17.2		$	3.5		$	7		$	1.1		$	28.8
Depreciation expense for the nine months ended September 30, 2014		$	46.4		$	10		$	21.2		$	3.4		$	81

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	'
	The fair value hierarchy for our financial assets and liabilities accounted for at fair value on a recurring basis at September 30, 2014 and December 31, 2013, was as follows (in millions):
		As of September 30, 2014
		Level 1		Level 2			Level 3		Total
	Assets
	Commodity derivatives	$	—	$	111.3		$	—	$	111.3
	Liabilities
	Commodity derivatives	—		(52.2		)	—		(52.2		)
	Interest rate derivatives	—		(1.4		)	—		(1.4		)
	Total liabilities	—		(53.6		)	—		(53.6		)
	Net assets	$	—	$	57.7		$	—	$	57.7
		As of December 31, 2013
		Level 1		Level 2			Level 3		Total
	Assets
	Commodity derivatives	$	—	$	23.9		$	—	$	23.9
	Interest rate derivatives	—		0.1			—		0.1
	Total assets	—		24			—		24
	Liabilities
	Commodity derivatives	—		(24.9		)	—		(24.9		)
	Interest rate derivatives	—		(2.8		)	—		(2.8		)
	Total liabilities	—		(27.7		)	—		(27.7		)
	Net liabilities	$	—	$	(3.7	)	$	—	$	(3.7	)

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments [Abstract]	'
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]	'
	The following table presents the fair value of our derivative instruments, as of September 30, 2014 and December 31, 2013. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under our master netting arrangements, including cash collateral on deposit with our counterparties. We have elected to offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements. As a result, the asset and liability amounts below will differ from the amounts presented in our condensed consolidated balance sheets (in millions):
				September 30, 2014							December 31, 2013
	Derivative Type	Balance Sheet Location		Assets			Liabilities				Assets			Liabilities
	Derivatives not designated as hedging instruments:
	OTC commodity swaps(1)	Other current assets		$	49.1		$	(35.5	)		$	17.4		$	(8.6	)
	OTC commodity swaps(1)	Other current liabilities		—			—				—			(3.4		)
	OTC commodity swaps(1)	Other long term assets		22.4			(2.7		)		—			—
	Interest rate derivatives	Other current assets		—			(1.4		)		—			—
	Interest rate derivatives	Other long term assets		—			—				0.1			—
	Interest rate derivatives	Other long term liabilities		—			—				—			(2.8		)
	Derivatives designated as hedging instruments:
	OTC commodity swaps(1)	Other current assets		34.5			(13.8		)		3.5			(3.2		)
	OTC commodity swaps(1)	Other long term assets		5.3			(0.2		)		—			—
	OTC commodity swaps(1)	Other long term liabilities		—			—				3			(9.7		)
	Total gross fair value of derivatives			$	111.3		$	(53.6	)		$	24		$	(27.7	)
	Less: Counterparty netting and cash collateral(2)			49.5			(53.6		)		14.2			(16.8		)
	Less: Amounts subject to master netting arrangements that are not netted on the balance sheet			$	—		$	—			$	6		$	(6.0	)
	Total net fair value of derivatives			$	61.8		$	—			$	3.8		$	(4.9	)
	(1)	As of September 30, 2014 and December 31, 2013, we had open derivative contracts representing 15,468,250 barrels and 7,703,000 barrels, respectively, of crude oil and refined petroleum products. Of these open contracts, contracts representing 2,728,000 barrels and 5,186,000 barrels were designated as hedging instruments as of September 30, 2014 and December 31, 2013, respectively.
	(2)	As of September 30, 2014 and December 31, 2013, $4.1 million and $2.6 million, respectively, of cash collateral has been netted with the derivative positions with each counterparty. Included in these amounts is $2.0 million of cash collateral associated with our interest rate derivatives as of both September 30, 2014 and December 31, 2013.
	For the three and nine months ended September 30, 2014, we recognized total gains on our commodity derivatives of $29.7 million and $70.7 million, respectively. For the three and nine months ended September 30, 2013, we recognized losses of $10.3 million and $8.7 million, respectively. The gains and losses on commodity derivatives were recorded in cost of goods sold on the condensed consolidated statement of income.
	Recognized gains (losses) associated with derivatives not designated as hedging instruments for the three and nine months ended September 30, 2014 and 2013 are as follows (in millions):
				Three Months Ended September 30,							Nine Months Ended September 30,
	Derivative Type	Income Statement Location		2014			2013				2014			2013
	OTC commodity swaps	Cost of goods sold		$	44.5		$	(11.5	)		$	73.3		$	(10.5	)
	Interest rate derivatives	Interest expense		0.6			0.2				1.3			1.4
		Total		$	45.1		$	(11.3	)		$	74.6		$	(9.1	)
	Gains on our derivatives designated as cash flow hedging instruments for the three and nine months ended September 30, 2014 and 2013 are as follows (in millions):
			Three Months Ended September 30,							Nine Months Ended September 30,
			2014			2013				2014			2013
	OTC commodity swaps:
	(Loss) gain recognized in OCI (effective portion)		$	(13.5	)	$	7.1			$	24.2		$	7.1
	(Loss) gain reclassified from accumulated OCI into cost of goods sold on closed positions (effective portion)		$	(5.9	)	$	—			$	(8.0	)	$	0.6
	(Loss) gain recognized in cost of goods sold related to ineffectiveness		$	(8.9	)	$	1.2			$	5.4		$	1.2

Delek_Logistics_Partners_LP_Na

Delek Logistics Partners, LP Narrative (Details) (USD $)	9 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Jul. 26, 2013	Feb. 10, 2014
		Tyler Terminal and Tanks [Member]	El Dorado Terminal and Tanks [Member]
			bbl
Variable Interest Entity [Line Items]	'	'	'
Noncontrolling Interest, Ownership Percentage by Parent	60.00%	'	'
Ownership Interest in General Partner	96.10%	'	'
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	2.00%	'	'
Limited Partners' Capital Account, Units Outstanding (units)	2,799,258	'	'
Other Ownership Interests, Units Outstanding (units)	11,999,258	'	'
General Partners' Capital Account, Units Outstanding (units)	493,533	'	'
Payments to acquire businesses, gross	'	$94.80	$95.90
Aggregate Shell Capacity (barrels)	'	'	2,500,000
Number of Storage Tanks	'	'	158

Delek_Logistics_Partners_LP_Ba

Delek Logistics Partners LP, Balance Sheet (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013		Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Assets	'	'		'	'
Cash and cash equivalents	$497.70	$400		$428.20	$601.70
Accounts receivable	324	250.5		'	'
Inventory	544	672.3		'	'
Other current assets	76.6	94.3		'	'
Net property, plant and equipment	1,400.30	1,278.50		'	'
Goodwill	73.9	72.7		'	'
Intangible assets, net	12.4	13.3		'	'
Other non-current assets	128.7	58.8		'	'
Total assets	3,057.60	2,840.40		2,748.20	'
Liabilities and Equity	'	'		'	'
Accounts payable	566.5	602		'	'
Accrued expenses and other current liabilities	111.7	113.4		'	'
Other non-current liabilities	15.3	25.6		'	'
Total liabilities and stockholders’ equity	3,057.60	2,840.40		'	'
Variable Interest Entity, Primary Beneficiary [Member]	'	'		'	'
Assets	'	'		'	'
Cash and cash equivalents	0.7	0.9	[1]	'	'
Accounts receivable	39.6	29	[1]	'	'
Inventory	9.8	17.5	[1]	'	'
Other current assets	0.7	0.3	[1]	'	'
Net property, plant and equipment	218.1	225.8	[1]	'	'
Goodwill	11.7	10.5	[1]	'	'
Intangible assets, net	11.6	12.3	[1]	'	'
Other non-current assets	4	5	[1]	'	'
Total assets	296.2	301.3	[1]	'	'
Liabilities and Equity	'	'		'	'
Accounts payable	23.7	26	[1]	'	'
Accounts payable to related parties	9.5	1.5	[1]	'	'
Accrued expenses and other current liabilities	12.7	12.2	[1]	'	'
Revolving credit facility	230	164.8	[1]	'	'
Asset Retirement Obligation	3.2	3.1	[1]	'	'
Deferred Tax Liabilities	0.4	0.3	[1]	'	'
Other non-current liabilities	5.4	6.2	[1]	'	'
Equity	11.3	87.2	[1]	'	'
Total liabilities and stockholders’ equity	$296.20	$301.30	[1]	'	'
[1]	)These amounts have been restated to reflect the assets and liabilities acquired in the El Dorado Acquisition.

Acquisitions_Details

Acquisitions (Details) (Crossett Facility [Member], USD $)	0 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2014	Sep. 30, 2014
		gal
Crossett Facility [Member]	'	'
Business Acquisition [Line Items]	'	'
Payments to acquire businesses, gross	$11.10	'
Yearly Production Capacity (gallons)	'	10,000,000

Inventory_Carrying_ValueDetail

Inventory Carrying Value(Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventory [Line Items]	'	'
Total inventories	$544	$672.30
Retail [Member]	'	'
Inventory [Line Items]	'	'
Energy Related Inventory, Crude Oil, Products and Merchandise	17.8	19.2
Retail merchandise	27.6	26.9
Logistics [Member]	'	'
Inventory [Line Items]	'	'
Energy Related Inventory, Crude Oil, Products and Merchandise	9.8	17.5
Refining [Member]	'	'
Inventory [Line Items]	'	'
Refinery raw materials and supplies	179.5	250.9
Refinery work in process	70.2	58.6
Energy Related Inventory, Crude Oil, Products and Merchandise	$239.10	$299.20

Inventory_Narrative_Details

Inventory Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified			Cost of goods sold	Cost of goods sold	Cost of goods sold	Cost of goods sold
Excess of Replacement or Current Costs over Stated LIFO Value	$32.30	$51.50	'	'	'	'
Effect of LIFO Inventory Liquidation on Income	'	'	$10.20	$1.20	$7.90	$0.50

Crude_Oil_Supply_and_Inventory1

Crude Oil Supply and Inventory Purchase Agreement (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	bbl		bbl
Crude Oil Supply and Inventory Purchase Agreement [Abstract]	'	'	'	'	'
Maximum Barrels Per Day Supplied under Supply and Offtake Agreement (bpd)	'	'	100,000	'	'
J Aron Daily Purchase Settlement Receivable	$10.20	'	$10.20	'	$18.20
Inventory financing expense	2.6	2.1	7.6	6.3	'
Barrels of Inventory Consigned to J Aron (barrels)	3,100,000	'	3,100,000	'	'
J Aron Liability for Consigned Inventory	$282.50	'	$282.50	'	'

LongTerm_Obligations_and_Notes2

Long-Term Obligations and Notes Payable Table (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	$594.20	$410.30
Capital Lease Obligations	0.5	0.6
Long-term Debt and Capital Lease Obligations, Current	58.4	33.7
Long-term Debt and Capital Lease Obligations	535.8	376.6
Promissory Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	75	77.4
Term loan facility [Member] | Secured Debt [Member] | Wells ABL [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	70	0
Term loan facility [Member] | Secured Debt [Member] | Lion Term Loan [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	109.7	90
Revolving Credit Facility [Member] | Line of Credit [Member] | MAPCO Revolver [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	92	67.5
Revolving Credit Facility [Member] | Line of Credit [Member] | DKL Revolver [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	230	164.8
Revolving Credit Facility [Member] | Line of Credit [Member] | Reliant Bank Revolver [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and Capital Lease Obligations	$17	$10

LongTerm_Obligations_and_Notes3

Long-Term Obligations and Notes Payable Table parenthetical (Details) (Term loan facility [Member], Secured Debt [Member], Lion Term Loan [Member], USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Term loan facility [Member] | Secured Debt [Member] | Lion Term Loan [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Unamortized Discount	$0.30

LongTerm_Obligations_and_Notes4

Long-Term Obligations and Notes Payable Lines of Credit Narrative (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

6-May-14

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Jun. 26, 2014

Dec. 31, 2013

Sep. 30, 2014

6-May-14

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

6-May-14

Sep. 30, 2014

Sep. 30, 2014

6-May-14

Sep. 30, 2014

Sep. 30, 2014

Jun. 23, 2014

6-May-14

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Term loan facility [Member]

Term loan facility [Member]

Term loan facility [Member]

Term loan facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility, Swing Line Loan [Member]

Revolving Credit Facility, Swing Line Loan [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Base Rate [Member]

Base Rate [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Canadian Dealer Offered Rate (CDOR) [Member]

Canadian Prime Rate [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Wells ABL [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Wells ABL [Member]

Line of Credit [Member]

Wells ABL [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Term loan facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Wells ABL [Member]

Wells ABL [Member]

Lion Term Loan [Member]

Lion Term Loan [Member]

MAPCO Revolver [Member]

MAPCO Revolver [Member]

MAPCO Revolver [Member]

DKL Revolver [Member]

DKL Revolver [Member]

Wells ABL [Member]

Reliant Bank Revolver [Member]

Reliant Bank Revolver [Member]

Reliant Bank Revolver [Member]

MAPCO Revolver [Member]

MAPCO Revolver [Member]

MAPCO Revolver [Member]

DKL Revolver [Member]

Wells ABL [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Secured Debt [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

MAPCO Revolver [Member]

DKL Revolver [Member]

Wells ABL [Member]

Lion Term Loan [Member]

MAPCO Revolver [Member]

DKL Revolver [Member]

Wells ABL [Member]

DKL Revolver [Member]

DKL Revolver [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

'

$600,000,000

'

$160,000,000

'

$400,000,000

'

'

'

$17,000,000

'

$55,000,000

$10,000,000

'

$550,000,000

'

$40,000,000

'

'

'

'

'

'

'

'

'

'

'

Delayed single draw term loan

'

'

'

'

'

'

70,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Borrowing Capacity under Accordion Feature

'

'

'

'

'

'

875,000,000

'

50,000,000

'

450,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and Capital Lease Obligations

594,200,000

410,300,000

70,000,000

0

109,700,000

90,000,000

'

92,000,000

'

67,500,000

230,000,000

164,800,000

'

17,000,000

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letters of Credit Outstanding, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

123,200,000

'

2,600,000

'

13,000,000

105,500,000

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Amount Outstanding

'

'

'

'

110,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Description of Variable Rate Basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'base rate

'U.S. base rate

'base rate

'LIBOR

'LIBOR

'LIBOR

'LIBOR

'Canadian Dealer Offered Rate

'Canadian prime rate

Debt, Weighted Average Interest Rate

'

'

'

'

5.50%

'

'

3.46%

'

'

2.40%

'

3.90%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

'

'

'

'

'

'

'

0.35%

'

'

0.40%

'

0.38%

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Remaining Borrowing Capacity

'

'

'

'

'

'

'

65,400,000

'

'

157,000,000

'

374,300,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Periodic Payment, Principal

'

'

'

'

5,500,000

'

5,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Holdings Note Principal amount outstanding

'

'

'

'

'

'

'

$50,000,000

'

'

$102,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

5.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LongTerm_Obligations_and_Notes5

Long-Term Obligations and Notes Payable Promissory Notes Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Apr. 29, 2011	Dec. 31, 2013	Dec. 19, 2011	Sep. 30, 2014
In Millions, unless otherwise specified			Promissory Notes [Member]	Promissory Notes [Member]	Build to Suit Notes [Member]	Build to Suit Notes [Member]	Build to Suit Notes [Member]	Ergon Note [Member]	Ergon Note [Member]	Ergon Paline Note [Member]	Ergon Paline Note [Member]
					Notes Payable [Member]	Minimum [Member]	Maximum [Member]	Notes Payable [Member]	Notes Payable [Member]	Notes Payable [Member]	Notes Payable [Member]
					Promissory Notes [Member]	Notes Payable [Member]	Notes Payable [Member]	Promissory Notes [Member]	Promissory Notes [Member]	Promissory Notes [Member]	Promissory Notes [Member]
						Promissory Notes [Member]	Promissory Notes [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Debt Instrument, Face Amount	'	'	'	'	'	$1	$2.20	$50	'	$25	'
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	'	'	'	'	5.00%	'	'	'	'	'	'
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	'	'	'	'	6.38%	'	'	'	'	'	'
Debt and Capital Lease Obligations	594.2	410.3	75	77.4	42.9	'	'	'	30	'	2.1
Debt Instrument, Interest Rate, Stated Percentage	'	'	'	'	'	'	'	4.00%	'	6.00%	'
Debt Instrument, Periodic Payment, Principal	'	'	'	'	'	'	'	$10	'	$2.10	'

LongTerm_Obligations_and_Notes6

Long-Term Obligations and Notes Payable Lion Term Loan Narrative (Details) (Term loan facility [Member], Secured Debt [Member], Lion Term Loan [Member], USD $)	9 Months Ended		0 Months Ended
	Sep. 30, 2014	Jun. 23, 2014	Jun. 23, 2014	Jun. 23, 2014	Jun. 23, 2014	Jun. 23, 2014
			London Interbank Offered Rate (LIBOR) [Member]	Reference Rate [Member]	Interest Rate Floor [Member]	Fifth Third Bank [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'
Debt Instrument, Face Amount	'	$110,000,000	'	'	'	$20,000,000
Line of Credit Facility, Amount Outstanding	110,000,000	'	'	'	'	'
Debt Instrument, Periodic Payment, Principal	$5,500,000	'	'	'	'	'
Debt Instrument, Description of Variable Rate Basis	'	'	'LIBOR	'base rate	'interest rate floor	'
Debt Instrument, Basis Spread on Variable Rate	'	'	'	'	5.50%	'
Debt, Weighted Average Interest Rate	5.50%	'	'	'	'	'

LongTerm_Obligations_and_Notes7

Long-Term Obligations and Notes Payable Interest-Rate Derivatives Narrative (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Debt Instrument [Line Items]	'	'	'	'	'
Notional Amount of Interest Rate Derivatives	$205	'	$205	'	'
Interest Rate Derivative Liabilities, at Fair Value	1.4	'	1.4	'	2.7
Derivative Instruments, Gain (Loss) Recognized in Income, Net	45.1	-11.3	74.6	-9.1	'
Interest expense | Not Designated as Hedging Instrument [Member] | Interest rate derivatives	'	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'	'
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$0.60	$0.20	$1.30	$1.40	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Income Taxes [Abstract]	'
Unrecognized Tax Benefits	$2.40
Unrecognized Tax Benefits, Interest on Income Taxes Expense	$0.20

Stockholders_Equity_Schedule_o

Stockholders' Equity Schedule of Changes in Stockholders' Equity (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Balance at December 31, 2013	'	'	$1,120.40	'
Net income	78.2	3	180.7	136.1
Unrealized gain on cash flow hedges, net of deferred income tax expense of $10.4 million and ineffectiveness of $5.4 million	1.6	4	18.4	3.6
Common stock dividends ($0.75 per share)	'	'	-44.7	'
Distribution to non-controlling interest	'	'	-12.3	'
Equity-based compensation expense	'	'	10	'
Purchase of common stock	-33.7	'	-41.6	'
Income tax benefit of equity-based compensation expense	'	'	2.3	'
Taxes paid due to net settlement of equity-based compensation	'	'	-4.8	'
Exercise of equity-based awards	'	'	1	'
Balance at September 30, 2014	1,229.40	'	1,229.40	'
Delek Stockholders' Equity	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Balance at December 31, 2013	'	'	935	'
Net income	'	'	161.1	'
Unrealized gain on cash flow hedges, net of deferred income tax expense of $10.4 million and ineffectiveness of $5.4 million	'	'	18.4	'
Common stock dividends ($0.75 per share)	'	'	-44.7	'
Distribution to non-controlling interest	'	'	0	'
Equity-based compensation expense	'	'	9.3	'
Purchase of common stock	'	'	-41.6	'
Income tax benefit of equity-based compensation expense	'	'	2.3	'
Taxes paid due to net settlement of equity-based compensation	'	'	-4.8	'
Exercise of equity-based awards	'	'	1	'
Balance at September 30, 2014	1,036	'	1,036	'
Non-Controlling Interest in Subsidiaries	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Balance at December 31, 2013	'	'	185.4	'
Net income	'	'	19.6	'
Unrealized gain on cash flow hedges, net of deferred income tax expense of $10.4 million and ineffectiveness of $5.4 million	'	'	0	'
Common stock dividends ($0.75 per share)	'	'	0	'
Distribution to non-controlling interest	'	'	-12.3	'
Equity-based compensation expense	'	'	0.7	'
Purchase of common stock	'	'	0	'
Income tax benefit of equity-based compensation expense	'	'	0	'
Taxes paid due to net settlement of equity-based compensation	'	'	0	'
Exercise of equity-based awards	'	'	0	'
Balance at September 30, 2014	$193.40	'	$193.40	'

Stockholders_Equity_Schedule_o1

Stockholders' Equity Schedule of Changes in Stockholders' Equity (Parenthetical) (Details) (USD $)	0 Months Ended						3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 23, 2014	Aug. 05, 2014	Jun. 11, 2014	6-May-14	Mar. 13, 2014	Feb. 25, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Shareholders’ Equity [Abstract]	'	'	'	'	'	'	'	'	'	'
Deferred income tax expense on unrealized gain on cash flow hedges	'	'	'	'	'	'	$0.80	$1.90	$10.40	$1.70
Ineffectiveness (gain) loss on unrealized gain on cash flow hedges	'	'	'	'	'	'	($8.90)	$1.20	$5.40	$1.20
Common stock dividends (dollar per share)	$0.10	$0.15	$0.10	$0.15	$0.10	$0.15	$0.25	$0.25	$0.75	$0.70

Stockholders_Equity_Dividends_

Stockholders' Equity Dividends (Details) (USD $)	0 Months Ended						3 Months Ended		9 Months Ended
	Sep. 23, 2014	Aug. 05, 2014	Jun. 11, 2014	6-May-14	Mar. 13, 2014	Feb. 25, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Dividends [Abstract]	'	'	'	'	'	'	'	'	'	'
Dividends declared per common share outstanding	$0.10	$0.15	$0.10	$0.15	$0.10	$0.15	$0.25	$0.25	$0.75	$0.70

Stockholders_Equity_Stock_Repu

Stockholders' Equity Stock Repurchase Program (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014
Stock Repurchase [Abstract]	'	'
Stock Repurchase Program, Authorized Amount	'	$100
Stock Repurchased During Period, Shares	1,005,657	1,265,901
Treasury Stock, Value, Acquired, Cost Method	$33.70	$41.60

Equity_Based_Compensation_Deta

Equity Based Compensation (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

In Millions, except Share data, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 10, 2013

Mar. 10, 2013

Sep. 30, 2014

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek Logistics 2012 Long-Term Incentive Plan [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

General and Administrative Expense [Member]

Certain executive officers

Certain executive officers

Certain executive officers

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek US 2006 Long-Term Incentive Plan [Member]

Delek Logistics 2012 Long-Term Incentive Plan [Member]

Delek Logistics 2012 Long-Term Incentive Plan [Member]

Delek Logistics 2012 Long-Term Incentive Plan [Member]

Delek Logistics 2012 Long-Term Incentive Plan [Member]

GP Membership Interest Award [Member]

GP Membership Interest Award [Member]

GP Membership Interest Award [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity-based compensation expense

'

'

'

'

'

$3

$2.20

$8.50

$6.50

$0.40

$0.50

$1.20

$0.50

'

'

$0.30

Equity-based compensation expense, net of tax

'

'

'

'

'

1.9

1.4

5.5

4.2

0.3

0.3

0.8

0.3

'

'

0.2

Unrecognized equity-based compensation cost

27.9

'

27.9

'

4.7

'

'

'

'

'

'

'

'

'

'

'

Weighted-average period for amortization of unrecognized compensation cost

'

'

'2 years 6 months 0 days

'

'3 years 1 month 11 days

'

'

'

'

'

'

'

'

'

'

'2 years 8 months 0 days

Stock Issued During Period, Shares, Share-based Compensation, Gross (shares)

111,488

80,199

330,624

517,876

'

'

'

'

'

'

'

'

'

'

'

'

Shares Paid for Tax Withholding for Share Based Compensation (shares)

89,834

104,259

205,821

368,232

'

'

'

'

'

'

'

'

'

'

'

'

Membership Interest in GP Granted to Employees

'

'

'

'

'

'

'

'

'

'

'

'

'

4.00%

1.40%

'

Membership Interest in GP Initial Vesting Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

Membership Interest in GP Semi-Annual Vesting Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

Unrecognized GP Interest compensation costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.50

Earnings_Per_Share_Details

Earnings Per Share (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Weighted average common shares outstanding	58,744,099	59,093,721	59,090,291	59,195,337
Dilutive effect of equity instruments (shares)	558,689	633,523	583,308	902,300
Weighted average common shares outstanding, assuming dilution	59,302,788	59,727,244	59,673,599	60,097,637
Outstanding common share equivalents excluded from diluted EPS	1,476,368	1,233,250	1,815,193	1,233,250

Segment_Data_Narrative_Details

Segment Data Narrative (Details) (USD $)	3 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013		Sep. 30, 2014	Sep. 30, 2013
				bbl
Segment Reporting Information [Line Items]	'	'		'	'
Refinery Throughput Capacity (bpd)	'	'		140,000	'
Intercompany fees and sales	$0	$0		$0	$0
Refining [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Intercompany fees and sales	183.8	136.8	[1]	478.4	319.4	[1]
Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	366	'		366	'
Number of Stores, Dealer Locations (stores)	44	'		44	'
Intercompany fees and sales	0	0		0	0
Logistics [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Intercompany fees and sales	29.8	21		84	53.1
TENNESSEE | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	198	'		198	'
ALABAMA | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	91	'		91	'
GEORGIA | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	48	'		48	'
ARKANSAS | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	13	'		13	'
VIRGINIA | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	8	'		8	'
KENTUCKY | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	5	'		5	'
MISSISSIPPI | Retail [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Number of Stores (stores)	3	'		3	'
Refining Marketing Services [Member] | Logistics [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Intercompany fees and sales	3.6	3.6		10.7	10.3
Crude Transportation and Storage Fees [Member] | Logistics [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Intercompany fees and sales	$24.90	$15.70		$70	$39.40
Tyler Refinery [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Refinery Throughput Capacity (bpd)	'	'		60,000	'
El Dorado Refinery [Member]	'	'		'	'
Segment Reporting Information [Line Items]	'	'		'	'
Refinery Throughput Capacity (bpd)	'	'		80,000	'
[1]	Hedging activity previously reported in corporate, other and eliminations has been allocated to the refining segment.

Segment_Data_Operating_Perform

Segment Data Operating Performance (Details) (USD $)	3 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013		Sep. 30, 2014	Sep. 30, 2013		Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'		'	'		'
Net sales (excluding intercompany fees and sales)	$2,322.20	$2,321.80		$6,562.60	$6,769.10		'
Intercompany fees and sales	0	0		0	0		'
Cost of Goods Sold	2,035.20	2,167.30		5,786.80	6,110.60		'
Operating expenses	100.9	97.1		301.6	291.1		'
Segment Contribution Margin	186.1	57.4		474.2	367.4		'
General and administrative expenses	36	24		97.6	79.7		'
Depreciation and amortization	29.2	20.6		82	64.2		'
Other Operating Income	0	-0.1		0	-1.6		'
Operating income	120.9	12.9		294.6	225.1		'
Total assets	3,057.60	2,748.20		3,057.60	2,748.20		2,840.40
Capital spending (excluding business combinations)	39.9	52.8		193.3	117.3		'
Refining [Member]	'	'		'	'		'
Segment Reporting Information [Line Items]	'	'		'	'		'
Net sales (excluding intercompany fees and sales)	1,618.40	1,615	[1]	4,533.20	4,710.30	[1]	'
Intercompany fees and sales	183.8	136.8	[1]	478.4	319.4	[1]	'
Cost of Goods Sold	1,598.50	1,666.30	[1]	4,468.20	4,565.80	[1]	'
Operating expenses	52.6	56.4	[1]	169.2	166.5	[1]	'
Segment Contribution Margin	151.1	29.1	[1]	374.2	297.4	[1]	'
Total assets	2,085.50	1,747.50		2,085.50	1,747.50		'
Capital spending (excluding business combinations)	30	31.2		157.3	62.3		'
Retail [Member]	'	'		'	'		'
Segment Reporting Information [Line Items]	'	'		'	'		'
Net sales (excluding intercompany fees and sales)	505.1	484.1		1,445.30	1,426.80		'
Intercompany fees and sales	0	0		0	0		'
Cost of Goods Sold	452.3	434.3		1,302.90	1,287.40		'
Operating expenses	36.4	33.2		103.4	98.9		'
Segment Contribution Margin	16.4	16.6		39	40.5		'
Total assets	462.2	437.4		462.2	437.4		'
Capital spending (excluding business combinations)	6.9	9.5		20	21.6		'
Logistics [Member]	'	'		'	'		'
Segment Reporting Information [Line Items]	'	'		'	'		'
Net sales (excluding intercompany fees and sales)	198.2	222.3		583.9	631.2		'
Intercompany fees and sales	29.8	21		84	53.1		'
Cost of Goods Sold	194.1	218.2		562.9	614		'
Operating expenses	10.2	9		29.1	28		'
Segment Contribution Margin	23.7	16.1		75.9	42.3		'
Total assets	296.2	313		296.2	313		'
Capital spending (excluding business combinations)	0.8	2.7		2.8	9.8		'
Corporate, other and eliminations [Member]	'	'		'	'		'
Segment Reporting Information [Line Items]	'	'		'	'		'
Net sales (excluding intercompany fees and sales)	0.5	0.4	[1]	0.2	0.8	[1]	'
Intercompany fees and sales	-213.6	-157.8	[1]	-562.4	-372.5	[1]	'
Cost of Goods Sold	-209.7	-151.5	[1]	-547.2	-356.6	[1]	'
Operating expenses	1.7	-1.5	[1]	-0.1	-2.3	[1]	'
Segment Contribution Margin	-5.1	-4.4	[1]	-14.9	-12.8	[1]	'
Total assets	213.7	250.3		213.7	250.3		'
Capital spending (excluding business combinations)	$2.20	$9.40		$13.20	$23.60		'
[1]	Hedging activity previously reported in corporate, other and eliminations has been allocated to the refining segment.

Segment_Data_PPE_Details

Segment Data PP&E (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'
Property, plant and equipment	$1,881.20	$1,881.20	$1,683.70
Less: accumulated depreciation	-480.9	-480.9	-405.2
Property, plant and equipment, net	1,400.30	1,400.30	1,278.50
Depreciation expense	28.8	81	'
Refining [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Property, plant and equipment	1,057.60	1,057.60	'
Less: accumulated depreciation	-235.9	-235.9	'
Property, plant and equipment, net	821.7	821.7	'
Depreciation expense	17.2	46.4	'
Retail [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Property, plant and equipment	507.8	507.8	'
Less: accumulated depreciation	-187.7	-187.7	'
Property, plant and equipment, net	320.1	320.1	'
Depreciation expense	7	21.2	'
Logistics [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Property, plant and equipment	267.4	267.4	'
Less: accumulated depreciation	-49.3	-49.3	'
Property, plant and equipment, net	218.1	218.1	'
Depreciation expense	3.5	10	'
Corporate, other and eliminations [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Property, plant and equipment	48.4	48.4	'
Less: accumulated depreciation	-8	-8	'
Property, plant and equipment, net	40.4	40.4	'
Depreciation expense	$1.10	$3.40	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash collateral	$4.10	$2.60
Interest rate derivatives	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash collateral	2	2
Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	24
Derivative Liability	-53.6	-27.7
Net Assets (Liabilities)	57.7	-3.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0
Derivative Liability	0	0
Net Assets (Liabilities)	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	24
Derivative Liability	-53.6	-27.7
Net Assets (Liabilities)	57.7	-3.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0
Derivative Liability	0	0
Net Assets (Liabilities)	0	0
Fair Value, Measurements, Recurring [Member] | OTC commodity swaps	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	111.3	23.9
Derivative Liability	-52.2	-24.9
Fair Value, Measurements, Recurring [Member] | OTC commodity swaps | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	0	0
Derivative Liability	0	0
Fair Value, Measurements, Recurring [Member] | OTC commodity swaps | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	111.3	23.9
Derivative Liability	-52.2	-24.9
Fair Value, Measurements, Recurring [Member] | OTC commodity swaps | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	0	0
Derivative Liability	0	0
Fair Value, Measurements, Recurring [Member] | Interest rate derivatives	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0.1
Derivative Liability	-1.4	-2.8
Fair Value, Measurements, Recurring [Member] | Interest rate derivatives | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0
Derivative Liability	0	0
Fair Value, Measurements, Recurring [Member] | Interest rate derivatives | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0.1
Derivative Liability	-1.4	-2.8
Fair Value, Measurements, Recurring [Member] | Interest rate derivatives | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Asset	'	0
Derivative Liability	$0	$0

Derivative_Instruments_Derivat

Derivative Instruments Derivative Assets and Liabilities (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]	'		'
Assets	$111.30		$24
Liabilities	-53.6		-27.7
Counterparty netting and cash collateral, Assets	49.5	[1]	14.2	[1]
Counterparty netting and cash collateral, Liabilities	-53.6	[1]	-16.8	[1]
Derivative Asset, Subject to Master Netting Arrangement	0		6
Derivative Liability, Subject to Master Netting Arrangement	0		-6
Total net fair value of derivative assets	61.8		3.8
Total net fair value of derivative liabilities	0		-4.9
Cash collateral	4.1		2.6
Interest rate derivatives	'		'
Derivatives, Fair Value [Line Items]	'		'
Cash collateral	2		2
Not Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative open contract (barrels)	15,468,250		7,703,000
Not Designated as Hedging Instrument [Member] | Interest rate derivatives | Other current assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	0		0
Liabilities	-1.4		0
Not Designated as Hedging Instrument [Member] | Interest rate derivatives | Other long term assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	0		0.1
Liabilities	0		0
Not Designated as Hedging Instrument [Member] | Interest rate derivatives | Other long term liabilities	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	0		0
Liabilities	0		-2.8
Not Designated as Hedging Instrument [Member] | OTC commodity swaps | Other current assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	49.1	[2]	17.4	[2]
Liabilities	-35.5	[2]	-8.6	[2]
Not Designated as Hedging Instrument [Member] | OTC commodity swaps | Other current liabilities	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	0	[2]	0	[2]
Liabilities	0	[2]	-3.4	[2]
Not Designated as Hedging Instrument [Member] | OTC commodity swaps | Other long term assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	22.4	[2]	0	[2]
Liabilities	-2.7	[2]	0	[2]
Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative open contract (barrels)	2,728,000		5,186,000
Designated as Hedging Instrument [Member] | OTC commodity swaps | Other current assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	34.5	[2]	3.5	[2]
Liabilities	-13.8	[2]	-3.2	[2]
Designated as Hedging Instrument [Member] | OTC commodity swaps | Other long term assets	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	5.3	[2]	0	[2]
Liabilities	-0.2	[2]	0	[2]
Designated as Hedging Instrument [Member] | OTC commodity swaps | Other long term liabilities	'		'
Derivatives, Fair Value [Line Items]	'		'
Assets	0	[2]	3	[2]
Liabilities	$0	[2]	($9.70)	[2]
[1]	) As of September 30, 2014 and December 31, 2013, $4.1 million and $2.6 million, respectively, of cash collateral has been netted with the derivative positions with each counterparty. Included in these amounts is $2.0 million of cash collateral associated with our interest rate derivatives as of both September 30, 2014 and
[2]	) As of September 30, 2014 and December 31, 2013, we had open derivative contracts representing 15,468,250 barrels and 7,703,000 barrels, respectively, of crude oil and refined petroleum products. Of these open contracts, contracts representing 2,728,000 barrels and 5,186,000 barrels were designated as hedging instruments as of September 30, 2014 and December 31, 2013, respectively.

Derivative_Instruments_Derivat1

Derivative Instruments Derivatives Gains and Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	$45.10	($11.30)	$74.60	($9.10)	'
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	0	0	0	'
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	14.4	'	14.4	'	-4
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	'	'	19.4	'	'
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	0	0	0	0	'
Cost of goods sold	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	-3.9	'	-5.2	0.4	'
OTC commodity swaps | Cost of goods sold	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Gain on Derivative Instruments, Pretax	29.7	'	70.7	'	'
Loss on Derivative Instruments, Pretax	'	10.3	'	8.7	'
Cash Flow Hedging [Member]	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Gain recognized in OCI (effective portion)	-13.5	7.1	24.2	7.1	'
(Loss) gain reclassified from accumulated OCI into cost of goods sold on closed positions (effective portion)	-5.9	0	-8	0.6	'
Gain recognized in cost of goods sold related to ineffectiveness	-8.9	1.2	5.4	1.2	'
Not Designated as Hedging Instrument [Member] | OTC commodity swaps | Cost of goods sold	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	44.5	-11.5	73.3	-10.5	'
Not Designated as Hedging Instrument [Member] | Interest rate derivatives | Interest expense	'	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net	$0.60	$0.20	$1.30	$1.40	'

Commitments_and_Contingencies_1

Commitments and Contingencies Self-Insurance (Details) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'
Self insurance Workers' Comp Coverage Ceiling per accident	$1
Self Insurance General Liability Claims Coverage Ceiling per occurence	4
Self Insurance Auto Liabiity Coverage Ceiling per accident	$4

Commitments_and_Contingencies_2

Commitments and Contingencies Environmental Health and Safety (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Accrual for Environmental Loss Contingencies	$9.60
Recorded Third-Party Environmental Recoveries Receivable	0.5
Recorded Third-Party Environmental Recoveries, Current	0.1
Recorded Third-Party Environmental Recoveries, Noncurrent	0.4
Accrued Environmental Loss Contingencies, Current	1
UST Related Remediation Liability	0.1
Consent Decree Settlement, Amount	$0.50

Commitments_and_Contingencies_3

Commitments and Contingencies Letters of Credit (Details) (Letter of Credit [Member], USD $)	Sep. 30, 2014
Letter of Credit [Member]	'
Line of Credit Facility [Line Items]	'
Letters of Credit Outstanding, Amount	$123,200,000
Line of Credit Facility, Amount Outstanding	$0

Subsequent_Events_Dividend_Dec

Subsequent Events Dividend Declaration (Details) (USD $)	0 Months Ended						3 Months Ended		9 Months Ended		0 Months Ended
	Sep. 23, 2014	Aug. 05, 2014	Jun. 11, 2014	6-May-14	Mar. 13, 2014	Feb. 25, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Nov. 04, 2014
											Subsequent Event [Member]
Subsequent Event [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Dividends declared per common share outstanding	$0.10	$0.15	$0.10	$0.15	$0.10	$0.15	$0.25	$0.25	$0.75	$0.70	$0.15

Subsequent_Events_Terminal_and

Subsequent Events Terminal and Pipeline Acquisition (Details) (Subsequent Event [Member], USD $)	0 Months Ended
In Millions, unless otherwise specified	Oct. 02, 2014	Oct. 01, 2014
Mount Pleasant Terminal [Member]	'	'
Subsequent Event [Line Items]	'	'
Storage capacity	200,000	'
Greenville Terminal [Member]	'	'
Subsequent Event [Line Items]	'	'
Storage capacity	325,000	'
Terminal and Pipeline [Member]	'	'
Subsequent Event [Line Items]	'	'
Payments to Acquire Businesses, Gross	$11.10	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	'	$1.10