Segment Reporting [Abstract] Segment Reporting, Policy [Policy Text Block] Segment Reporting, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Fair Value Measurements [Abstract] Fair Value Measurements Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] OTC commodity swaps Commodity Contract [Member] RINs Obligation [Member] RINs Obligation [Member] RINs Obligation [Member] Interest rate derivatives Interest Rate Contract [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivative Assets Derivative Asset Derivative Liabilities Derivative Liability Net Liabilities Fair Value, Net Asset (Liability) Cash collateral Collateral Already Posted, Aggregate Fair Value Accrued Expenses and Other Current Liabilities Disclosure [Abstract] Accrued Expenses and Other Current Liabilities Disclosure [Abstract] Income and other taxes payable Taxes Payable, Current Short-term derivative liabilities Derivative Liability, Current Interest payable Interest Payable, Current Employee costs Employee-related Liabilities, Current Environmental liabilities Accrued Environmental Loss Contingencies, Current Product financing agreements Product Financing Agreements Liability, Current Product Financing Agreements Liability, Current RINs Obligation deficit RINs Obligation Deficit, Other Liabilities, Current RINs Obligation Deficit, Other Liabilities, Current Other Other Sundry Liabilities, Current Total Other Liabilities, Current Fair Value Measurements Fair Value Disclosures [Text Block] Inventory [Abstract] Inventory [Abstract] Inventory, Current [Table] Inventory, Current [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Refining [Member] Refining [Member] Refining [Member] Retail [Member] Retail [Member] Retail [Member] Logistics [Member] Logistics [Member] Logistics [Member] Inventory [Line Items] Inventory [Line Items] Refinery raw materials and supplies Inventory, Raw Materials and Supplies, Net of Reserves Refinery work in process Inventory, Work in Process, Net of Reserves Inventory, Finished Goods, Net of Reserves Inventory, Finished Goods, Net of Reserves Retail merchandise Retail Related Inventory, Merchandise Total inventories Inventory, Net Shareholders’ Equity [Abstract] Shareholders’ Equity [Abstract] Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Derivative Instruments [Abstract] Derivative Instruments [Abstract] Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Variable Interest Entity, Measure of Activity [Abstract] Subsidiary balance sheet Condensed Balance Sheet [Table Text Block] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Variable Interest Entity, Primary Beneficiary [Member] Variable Interest Entity, Primary Beneficiary [Member] Statement [Line Items] Statement [Line Items] ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable Accounts Receivable, Net, Current Accounts receivable from related parties Due from Related Parties, Current Inventory Other current assets Other Assets, Current Net property, plant and equipment Property, Plant and Equipment, Net Equity method investments Equity Method Investments Goodwill Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other non-current assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND DEFICIT Liabilities and Equity [Abstract] Accounts payable Accounts Payable, Current Accounts payable to related parties Due to Related Parties, Current Accrued expenses and other current liabilities Revolving credit facility Long-term Line of Credit, Noncurrent Asset Retirement Obligation Asset Retirement Obligation Other non-current liabilities Other Liabilities, Noncurrent Deficit Partners' Capital Total liabilities and deficit Liabilities and Equity Statement of Comprehensive Income [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Amount of ineffectiveness losses on cash flow hedges Amount of Ineffectiveness on Net Investment Hedges Tax benefit on other comprehensive loss from equity method investments Other Comprehensive Income (Loss) from Equity Method Investment, Derivatives Qualifying as Hedges, Tax Other Comprehensive Income (Loss) from Equity Method Investment, Derivatives Qualifying as Hedges, Tax Dividends [Abstract] Dividends declared per common share outstanding Common Stock, Dividends, Per Share, Declared Variable Interest Entity [Abstract] Variable Interest Entity [Abstract] Noncontrolling Interest, Ownership Percentage by Parent Noncontrolling Interest, Ownership Percentage by Parent Ownership Interest in General Partner Ownership Interest in General Partner Ownership Interest in General Partner Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited Partners' Capital Account, Units Outstanding Limited Partners' Capital Account, Units Outstanding General Partners' Capital Account, Units Outstanding General Partners' Capital Account, Units Outstanding Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Fair value of financial Instruments policy Fair Value of Financial Instruments, Policy [Policy Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Derivaties Gains and Losses [Abstract] Derivaties Gains and Losses [Abstract] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of goods sold Cost of Sales [Member] Interest expense Interest Expense [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Gains on derivatives not designated as hedging instruments Derivative, Gain (Loss) on Derivative, Net Realized (losses) gains reclassified out of OCI on derivatives designated as cash flow hedging instruments Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Losses recognized due to cash flow hedging instruments ineffectiveness Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Total Gain (Loss) on Derivative Instruments, Net, Pretax Derivative, Loss on Derivative Derivative, Loss on Derivative Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net Accumulated Other Comprehensive Loss, Cumulative Changes in Net Loss from Cash Flow Hedges, Effect Net of Tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Other Comprehensive (Loss) Income, Reclassification Adjustment from AOCI on Derivatives, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Cash Flow Hedge Loss to be Reclassified within Twelve Months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Long-Term Obligations and Notes Payable [Abstract] Long-Term Obligations and Notes Payable [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Alon USA Energy, Inc. [Member] Alon USA Energy, Inc. [Member] Alon USA Energy, Inc. [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Interest Rate Floor [Member] Interest Rate Floor [Member] Promissory Notes [Axis] Promissory Notes [Axis] Promissory Notes [Axis] Promissory Notes [Domain] Promissory Notes [Domain] Promissory Notes [Domain] Build to Suit Notes [Member] Build to Suit Notes [Member] Build to Suit Notes [Member] Ergon Note [Member] Ergon Note [Member] Ergon Note [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Notes Payable [Member] Notes Payable, Other Payables [Member] Loans Payable [Member] Loans Payable [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Promissory Notes [Member] Promissory Notes [Member] Promissory Notes [Member] Unsecured Promissory Note, Alon [Member] Unsecured Promissory Note, Alon [Member] Unsecured Promissory Note, Alon [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument, Face Amount Debt Instrument, Face Amount Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt and Capital Lease Obligations Debt and Capital Lease Obligations Early Repayment of Subordinated Debt Early Repayment of Subordinated Debt Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Periodic Payment, Principal Debt Instrument, Periodic Payment, Principal Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Equity Method Investments [Abstract] Equity Method Investments [Abstract] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Method Investments and Joint Ventures Disclosure [Text Block] Equity Method Investments and Joint Ventures Disclosure [Text Block] Segment Data [Abstract] Segment Data Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments [Member] Operating Segments [Member] Corporate, other and eliminations [Member] Corporate, other and eliminations [Member] Corporate, other and eliminations [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Net sales (excluding intercompany fees and sales) Revenue, Net Intercompany fees and sales Revenue from Related Parties Operating costs and expenses: Operating Costs and Expenses [Abstract] Cost of Goods Sold Cost of Goods Sold Operating expenses Operating Costs and Expenses Insurance proceeds — business interruption Gain on Business Interruption Insurance Recovery Segment Contribution Margin Segment Contribution Margin Segment Contribution Margin General and administrative expenses Selling, General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Other Operating Income Other Operating Income Operating loss Operating Income (Loss) Total assets Capital spending (excluding business combinations) Capital Expenditures Capital expenditures that have occurred including costs incurred not yet paid. Commitments and Contingencies Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Letter of Credit [Member] Letter of Credit [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Line of Credit Facility, Amount Outstanding Long-term Line of Credit Balance Sheet Information Balance Sheet Information [Abstract] Balance Sheet Information [Abstract] Current assets Equity Method Investment, Summarized Financial Information, Current Assets Non-current assets Equity Method Investment, Summarized Financial Information, Noncurrent Assets Current liabilities Equity Method Investment, Summarized Financial Information, Current Liabilities Non-current liabilities Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities Non-controlling interests Equity Method Investment, Summarized Financial Information, Noncontrolling Interest Income Statement Information Income Statement Information [Abstract] Income Statement Information [Abstract] Revenue Equity Method Investment, Summarized Financial Information, Revenue Gross profit Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) Pre-tax loss Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations before income taxes The amount of income (loss) from continuing operations before income taxes reported by an equity method investment of the entity. Net loss Equity Method Investment, Summarized Financial Information, Net Income (Loss) Net loss attributable to Alon USA Equity Method Investment, Summarized Financial Information, Net Income (Loss) Attributable to Parent The amount of net income (loss) reported by equity method investment of the entity, which is attributable to the parent. Long-Term Incentive Plan [Abstract] Long-Term Incentive Plan [Abstract] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Delek US 2016 Long-Term Incentive Plan [Member] Delek US 2016 Long-Term Incentive Plan [Member] Delek US 2016 Long-Term Incentive Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] OTC commodity swaps Other current assets Other Current Assets [Member] Other current liabilities Other Current Liabilities [Member] Other long term assets Other Noncurrent Assets [Member] Other long term liabilities Other Noncurrent Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Assets Derivative Asset, Fair Value, Gross Asset Liabilities Derivative Liability, Fair Value, Gross Liability Counterparty netting and cash collateral, Assets Derivative Asset, Counterparty Netting and Cash Collateral Derivative Asset, Counterparty Netting and Cash Collateral Counterparty netting and cash collateral, Liabilities Derivative Liability, Counterparty Netting and Cash Collateral Derivative Liability, Counterparty Netting and Cash Collateral Derivative Asset, Subject to Master Netting Arrangement Derivative Asset, Subject to Master Netting Arrangement Derivative Asset, Subject to Master Netting Arrangement Derivative Liability, Subject to Master Netting Arrangement Derivative Liability, Subject to Master Netting Arrangement Derivative Liability, Subject to Master Netting Arrangement Total net fair value of derivative assets Derivative Asset, Fair Value, Amount Offset Against Collateral Total net fair value of derivative liabilities Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative open contract (barrels) Derivative, Nonmonetary Notional Amount Condensed Consolidated Statement of Cash Flows (Parenthetical) [Abstract] Condensed Consolidated Statement of Cash Flows (Parenthetical) [Abstract] Capitalized interest Interest Paid, Capitalized Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Joint Ventures [Member] Joint Ventures [Member] Joint ventures [Member] Equity Method Investment, Ownership, Shares Investment Owned, Balance, Shares Equity Method Investment, Ownership Percentage Equity Method Investment, Ownership Percentage Shares issued in connection with Alon acquisition Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued Alon Note Cash payment to Acquire Equity Method Investments Payments to Acquire Equity Method Investments Additional consideration Equity method investment, non-cash consideration Equity method investment, non-cash consideration Number of shares contingently issuable Number of shares contingently issuable Number of shares contingently issuable in acquisition if certain conditions are met. Contingent Consideration, Stock Price Trigger Contingent Consideration, Stock Price Trigger Price of the entity's common stock which would be required to be attained for the contingent payment to become effective. Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Organization and Basis of Presentation [Abstract] Organization and Basis of Presentation [Abstract] Organization and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Income Statement [Abstract] Net sales Operating costs and expenses: Costs and Expenses [Abstract] Cost of goods sold Other operating income, net Total operating costs and expenses Costs and Expenses Interest expense Interest Expense Interest income Interest Income, Other Loss from equity method investments Income (Loss) from Equity Method Investments Other loss (income), net Other Nonoperating Income (Expense) Total non-operating expenses, net Nonoperating Income (Expense) Loss before income tax benefit Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax benefit Income Tax Expense (Benefit) Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributed to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Net loss attributable to Delek Net Income (Loss) Attributable to Parent Basic loss per share Earnings Per Share, Basic Diluted loss per share Earnings Per Share, Diluted Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted ASSETS Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable Accounts receivable from related party Inventories, net of lower cost or market value Total current assets Assets, Current Property, plant and equipment: Property, Plant and Equipment [Abstract] Property, plant and equipment Property, Plant and Equipment, Gross Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Other intangibles, net LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Liabilities, Current [Abstract] Accounts payable Current portion of long-term debt and capital lease obligations Long-term Debt and Capital Lease Obligations, Current Obligation under Supply and Offtake Agreement Obligation Under Supply And Off Take Agreement Obligation under supply and offtake agreement Total current liabilities Liabilities, Current Non-current liabilities: Liabilities, Noncurrent [Abstract] Long-term debt and capital lease obligations, net of current portion Long-term Debt and Capital Lease Obligations Environmental liabilities, net of current portion Accrued Environmental Loss Contingencies, Noncurrent Asset retirement obligations Asset Retirement Obligations, Noncurrent Deferred tax liabilities Deferred Tax Liabilities, Net, Noncurrent Total non-current liabilities Liabilities, Noncurrent Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value, 10,000,000 shares authorized, no shares issued and outstanding Preferred Stock, Value, Issued Common stock, $0.01 par value, 110,000,000 shares authorized, 66,987,187 shares and 66,946,721 shares issued at March 31, 2016 and December 31, 2015, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock, 4,989,910 shares and 4,809,701 shares, at cost, as of March 31, 2016 and December 31, 2015, respectively Treasury Stock, Value Retained earnings Retained Earnings (Accumulated Deficit) Non-controlling interest in subsidiaries Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders’ equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders’ equity Equity Based Compensation [Abstract] Equity Based Compensation [Abstract] Equity Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Prepaid Expense and Other Assets, Current [Abstract] Prepaid assets Prepaid Expense, Current Short-term derivative assets Derivative Asset, Current Tax receivables Income Taxes Receivable, Current RINs Obligation surplus RINs Obligation Surplus, Other Assets, Current RINs Obligation Surplus, Other Assets, Current Other Other Assets, Miscellaneous, Current Total Notional Amount of Interest Rate Derivatives Derivative, Notional Amount Other Assets and Liabilities [Abstract] Other Assets and Liabilities [Abstract] Other Assets and Liabilities Disclosure [Text Block] Other Assets and Liabilities Disclosure [Text Block] The entire disclosure for other assets and liabilities. Segment Data Segment Reporting Disclosure [Text Block] Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Delek Stockholders' Equity Parent [Member] Non-Controlling Interest in Subsidiaries Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance at December 31, 2015 Net (loss) income Unrealized gain on cash flow hedges, net of income tax expense of $0.2 million and ineffectiveness loss of $1.0 million Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Foreign currency translation gain Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other comprehensive loss from equity method investments, net of income tax benefit of $0.1 million Other comprehensive income (loss) from equity method investments The entity's proportionate share for the period of the other comprehensive income (loss) of its investee to which the equity method of accounting is applied. Common stock dividends ($0.15 per share) Dividends, Common Stock, Cash Distribution to non-controlling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Equity-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Purchase of common stock Treasury Stock, Value, Acquired, Cost Method Income tax expense from equity-based compensation expense Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation Taxes paid due to net settlement of equity-based compensation Adjustments Related to Tax Withholding for Share-based Compensation Balance at March 31, 2016 Income tax expense on unrealized gain on cash flow hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Income tax benefit from other comprehensive loss from equity method investments Common Stock, Dividends, Per Share, Declared Income Taxes [Abstract] Income Taxes [Abstract] Income Taxes Income Tax Disclosure [Text Block] Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Amortization of deferred financing costs and debt discount Amortization of Financing Costs Accretion of asset retirement obligations Asset Retirement Obligation, Accretion Expense Deferred income taxes Deferred Income Tax Expense (Benefit) Loss from equity method investments Dividends from equity method investments Proceeds from Equity Method Investment, Dividends or Distributions Loss on disposal of assets Gain (Loss) on Disposition of Assets Equity-based compensation expense Share-based Compensation Income tax expense (benefit) of equity-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories and other current assets Increase (Decrease) in Inventories and Other Operating Assets Market value of derivatives Increase (Decrease) in Market Value of Derivatives Increase (Decrease) in Market Value of Derivatives Accounts payable and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Obligation under Supply and Offtake Agreement Obligation under Supply and Offtake Agreement, Increase (decrease) Obligation under Supply and Offtake Agreement, Increase (decrease) Non-current assets and liabilities, net Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Equity method investments Payments to Acquire Interest in Subsidiaries and Affiliates Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Purchase of intangible assets Payments to Acquire Intangible Assets Proceeds from sales of assets Proceeds from Sale of Productive Assets Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from long-term revolvers Proceeds from Long-term Lines of Credit Payments on long-term revolvers Repayments of Long-term Lines of Credit Proceeds from term debt and capital lease obligations Proceeds from Other Debt Payments on term debt and capital lease obligations Repayments of Debt and Capital Lease Obligations Proceeds from product financing agreements Proceeds from Product Financing Agreements Proceeds from Product Financing Agreements Taxes paid due to the net settlement of equity-based compensation Payments Related to Tax Withholding for Share-based Compensation Income tax (expense) benefit of equity-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Repurchase of common stock Payments for Repurchase of Common Stock Distribution to non-controlling interest Payments to Noncontrolling Interests Dividends paid Payments of Dividends Deferred financing costs paid Payments of Financing Costs Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at the beginning of the period Cash and cash equivalents at the end of the period Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid during the period for: Supplemental Cash Flow Information Cash Paid During Period Abstract Cash paid during the period for: Interest, net of capitalized interest of $0.1 million and $0.6 million in the 2016 and 2015 periods, respectively. Interest Paid, Net Income taxes Income Taxes Paid Non-cash investing activities: Cash Flow, Noncash Investing Activities Disclosure [Abstract] Cash Flow, Noncash Investing Activities Disclosure [Abstract] Equity method investments (Decrease) increase in accrued capital expenditures Increase (decrease) in accrued capital expenditures Increase (decrease) in accrued capital expenditures Schedule of Stockholders Equity [Table Text Block] Schedule of Stockholders Equity [Table Text Block] Schedule of Dividends Payable [Table Text Block] Schedule of Dividends Payable [Table Text Block] Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of Weighted Average Number of Shares [Table Text Block] Crude Oil Supply and Inventory Purchase Agreement [Abstract] Crude Oil Supply and Inventory Purchase Agreement Interest Expense [Member] Accounts Receivable [Member] Accounts Receivable [Member] Maximum Barrels Per Day Supplied under Supply and Offtake Agreement (bpd) Maximum BPD Supplied under Supply and Offtake Agreement Maximum BPD Supplied under Supply and Offtake Agreement J Aron Daily Purchase Settlement Payable Purchase Settlement Receivable (Payable) Purchase Settlement Receivable (Payable) Inventory financing expense Financing Interest Expense Barrels of Inventory Consigned to J Aron Amount of Consigned Inventory Amount of Consigned Inventory J Aron Liability for Consigned Inventory Liability for Consigned Inventory Liability for Consigned Inventory Delek Logistics Partners, LP Variable Interest Entity Disclosure [Text Block] Condensed Consolidated Statements of Comprehensive Income [Abstract] Condensed Consolidated Statements of Comprehensive Income [Abstract] Net loss attributable to Delek Other comprehensive (loss) income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Commodity contracts designated as cash flow hedges: Commodity contracts designated as cash flow hedges [Abstract] Commodity contracts designated as cash flow hedges [Abstract] Unrealized losses, net of ineffectiveness losses of $1.0 million and $5.0 million for the three months ended March 31, 2016 and 2015, respectively. Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Realized losses (gains) reclassified to cost of goods sold Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Gain (loss) on cash flow hedges, net Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Income tax (expense) benefit Net comprehensive income (loss) on commodity contracts designated as cash flow hedges Foreign currency translation gain (loss) Other comprehensive loss from equity method investments, net of tax benefit of $0.1 million for the three months ended March 31, 2016 Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive loss attributable to Delek Comprehensive Income (Loss), Net of Tax, Attributable to Parent Cost of Goods, Total [Member] Cost of Goods, Total [Member] Inventory [Axis] Inventory [Axis] Inventory [Domain] Inventory [Domain] LIFO inventory [Member] LIFO inventory [Member] LIFO inventory [Member] Inventory Reserve Inventory Reserve Inventory Reserve Lower of cost or market gains Inventory, LIFO Reserve, Period Charge, net of FIFO Inventory Write-down The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period, net of FIFO Inventory Write-down Excess of Replacement or Current Costs over Stated LIFO Value Excess of Replacement or Current Costs over Stated LIFO Value Effect of LIFO Inventory Liquidation on Income Effect of LIFO Inventory Liquidation on Income Schedule of Inventory, Current [Table Text Block] Schedule of Inventory, Current [Table Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Weighted average common shares outstanding Dilutive effect of equity instruments Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average common shares outstanding, assuming dilution Outstanding common share equivalents excluded from diluted EPS Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Outstanding common share equivalents excluded from diluted EPS due to net loss Outstanding Common Share Equivalents Excluded from Computation of Diluted Earnings Per Share, Amount Outstanding Common Share Equivalents Excluded from Computation of Diluted Earnings Per Share due to net loss, Amount Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Fifth Third Bank [Member] Fifth Third Bank [Member] Fifth Third Bank [Member] Base Rate [Member] Base Rate [Member] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Canadian Dealer Offered Rate (CDOR) [Member] Canadian Dealer Offered Rate (CDOR) [Member] Canadian Dealer Offered Rate [Member] Canadian Prime Rate [Member] Canadian prime rate [Member] Canadian prime rate [Member] Term loan facility [Member] Term loan facility [Member] Term loan facility [Member] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Line of Credit [Member] Line of Credit [Member] Revolving Credit Facility, Swing Line Loan [Member] Revolving Credit Facility, Swing Line Loan [Member] Revolving Credit Facility, Swing Line Loan [Member] Secured Debt [Member] Secured Debt [Member] MAPCO Revolver [Member] MAPCO Revolver [Member] MAPCO Revolver [Member] DKL Revolver [Member] DKL Revolver [Member] DKL Revolver [Member] Wells ABL [Member] Wells ABL [Member] Wells ABL [Member] Reliant Bank Revolver [Member] Reliant Bank Revolver [Member] Reliant Bank Revolver [Member] Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Delayed single draw term loan Delayed single draw term loan Delayed single draw term loan Maximum Borrowing Capacity under Accordion Feature Maximum Borrowing Capacity under Accordion Feature Maximum Borrowing Capacity under Accordion Feature Long-term Debt, Gross Long-term Debt, Gross Debt Instrument, Description of Variable Rate Basis Debt Instrument, Description of Variable Rate Basis Debt, Weighted Average Interest Rate Debt, Weighted Average Interest Rate Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Holdings Note Principal amount outstanding Related Party Limiited Guaranty of Debt Related Party Limiited Guaranty of Debt Crude Oil Supply and Inventory Purchase Agreement Crude Oil Supply And Inventory Purchase Agreement [Text Block] Crude Oil Supply and Inventory Purchase Agreement Subsequent Events Subsequent Events [Text Block] Self insurance Workers' Comp Coverage Ceiling per accident Self insurance Workers' Comp Coverage Ceiling per accident Self insurance Workers' Comp Coverage Ceiling per accident Self Insurance General Liability Claims Coverage Ceiling per occurence Self Insurance General Liability Claims Coverage Ceiling per occurence Self Insurance General Liability Claims Coverage Ceiling per occurence Self Insurance Auto Liabiity Coverage Ceiling per accident Self Insurance Auto Liabiity Coverage Ceiling per accident Self Insurance Auto Liabiity Coverage Ceiling per accident Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Other Non-Current Liabilities [Abstract] Other Non-Current Liabilities [Abstract] Long-term derivative liabilities Derivative Liability, Noncurrent Other Other Sundry Liabilities, Noncurrent Total Other Non-Current Assets [Abstract] Other Non-Current Assets [Abstract] Prepaid tax asset Prepaid Expense, Noncurrent Deferred financing costs Deferred Finance Costs, Noncurrent, Net Long-term tax receivables Income Taxes Receivable, Noncurrent Supply and Offtake receivable Supply and Offtake Receivable Supply and Offtake Receivable Long-term derivative assets Derivative Asset, Noncurrent Other Other Assets, Miscellaneous, Noncurrent Total Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Refining Marketing Services [Member] Refining Marketing Services [Member] Refining Marketing Services [Member] Crude Transportation and Storage Fees [Member] Crude Transportation and Storage Fees [Member] Crude Transportation and Storage Fees [Member] RIN Sales [Member] RIN Sales [Member] RIN Sales [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Tyler Refinery [Member] Tyler Refinery [Member] Tyler Refinery[Member] El Dorado Refinery [Member] El Dorado Refinery [Member] El Dorado Refinery [Member] TENNESSEE TENNESSEE ALABAMA ALABAMA GEORGIA GEORGIA ARKANSAS ARKANSAS VIRGINIA VIRGINIA KENTUCKY KENTUCKY MISSISSIPPI MISSISSIPPI Refinery Throughput Capacity (bpd) Total Throughput Capacity Total Throughput Capacity Number of Stores (stores) Number of Stores Number of Stores, Dealer Locations (stores) Number of Stores, Dealer Locations Number of Stores, Dealer Locations Long-Term Obligations and Notes Payable Debt Disclosure [Text Block] Lion Term Loan [Member] Lion Term Loan [Member] Lion Term Loan [Member] Capital Lease Obligations [Member] Capital Lease Obligations [Member] Debt and Capital Lease Obligations Current portion of long-term debt, notes payable and capital lease obligations Deferred Finance Costs, Net Deferred Finance Costs, Net Debt discount on Lion Term Loan Facility Debt Instrument, Unamortized Discount Reference Rate [Member] Reference Rate [Member] Reference Rate [Member] Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Inventory Inventory Disclosure [Text Block] Consolidation of variable interest entity policy Consolidation, Variable Interest Entity, Policy [Policy Text Block] Basis of Accounting, Policy Basis of Accounting, Policy [Policy Text Block] Consolidation, Policy Consolidation, Policy [Policy Text Block] Reclassification, Policy [Policy Text Block] Reclassification, Policy [Policy Text Block] Use of estimates policy Use of Estimates, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Equity Method Investments [Table Text Block] Equity Method Investments [Table Text Block] Property, plant and equipment, net Depreciation expense Depreciation, Nonproduction Inventory policy Inventory, Policy [Policy Text Block] Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Condensed Consolidated Balance Sheets Parenthetical [Abstract] Condensed Consolidated Balance Sheets Parenthetical [Abstract] Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Treasury stock, shares Treasury Stock, Shares Stock Repurchase [Abstract] Stock Repurchase [Abstract] Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Treasury Stock, Shares, Acquired Treasury Stock, Shares, Acquired Treasury Stock, Value, Acquired, Cost Method Accrual for Environmental Loss Contingencies Accrual for Environmental Loss Contingencies Recorded Third-Party Environmental Recoveries Receivable Recorded Third-Party Environmental Recoveries Receivable Recorded Third-Party Environmental Recoveries, Current Recorded Third-Party Environmental Recoveries, Current Accrued Environmental Loss Contingencies, Current Schedule of Other Current Assets [Table Text Block] Schedule of Other Current Assets [Table Text Block] Schedule of Other Assets, Noncurrent [Table Text Block] Schedule of Other Assets, Noncurrent [Table Text Block] Schedule of Accrued Liabilities and Other Current Liabilities [Table Text Block] Other Current Liabilities [Table Text Block] Other Noncurrent Liabilities [Table Text Block] Other Noncurrent Liabilities [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] General and Administrative Expense [Member] General and Administrative Expense [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] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Equity-based compensation expense Allocated Share-based Compensation Expense Equity-based compensation expense, net of tax Allocated Share-based Compensation Expense, Net of Tax Unrecognized equity-based compensation Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average period for amortization of unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Stock Issued During Periods (shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Shares Paid for Tax Withholding for Share Based Compensation Shares Paid for Tax Withholding for Share Based Compensation