Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the required periodic payments applied to principal.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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Weighted average interest rate of debt outstanding.

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The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets before its maturity.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long-Term Obligations and Notes Payable Promissory Notes Narrative (Details) - USD ($)	Oct. 22, 2015	May 14, 2015	Apr. 29, 2011	Dec. 31, 2017	Dec. 31, 2016	Dec. 22, 2015
Debt Instrument [Line Items]
Long-term debt				$ 1,465,600,000	$ 832,900,000
Retail Company Loan Due 2019
Debt Instrument [Line Items]
Loans payable				$ 100,000
Weighted average interest rate (percentage)				9.70%
Notes Payable, Other Payables [Member] \| Ergon Note
Debt Instrument [Line Items]
Debt instrument, face amount			$ 50,000,000.0
Interest rate, stated percentage			4.00%
Periodic payment, principal			$ 10,000,000
Alon USA Energy, Inc. \| Loans Payable \| Unsecured Promissory Note, Alon
Debt Instrument [Line Items]
Debt instrument, face amount		$ 145,000,000.0				$ 120,000,000.0
Interest rate, stated percentage		5.50%
Periodic payment, principal		$ 25,000,000
Periodic payment terms, balloon payment to be paid		$ 20,000,000
Early repayment of subordinated debt	$ 25,000,000
Long-term debt				$ 95,000,000