Derivative Instruments Not Designated as Hedging Instruments, Realized Gain (Loss)

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- Definition

Derivative Instruments Not Designated as Hedging Instruments, Unrealized Gain (Loss)

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- Definition

Derivative, Notional Amount, Percent of Outstanding Principal, Coverage

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- Definition

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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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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The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

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The amount of net gain (loss) reclassified into earnings in the period when cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period.

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The amount of net gain (loss) reclassified into earnings when interest rate cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Derivative Instruments - Narrative (Details) - USD ($)	12 Months Ended
Derivative Instruments - Narrative (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Derivative instruments' gains or losses excluded from assessment of hedge effectiveness	$ 0	$ 0	$ 0
Amounts reclassified from AOCI into income as a result of the discontinuation of cash flow hedge accounting	0	0	0
Forward Contracts [Member]
Derivative [Line Items]
Realized gains	23,100,000
Unrealized losses	(3,000,000.0)
Total	20,100,000
Commodity contract
Derivative [Line Items]
Accumulated other comprehensive gains (losses) from cash flow hedges	35,400,000	7,600,000
Interest rate derivatives
Derivative [Line Items]
Accumulated other comprehensive gains (losses) from cash flow hedges		600,000
Cost of goods sold \| Commodity contract
Derivative [Line Items]
Reclassification adjustment from AOCI on derivatives	(1,500,000)	$ (25,100,000)	$ (18,100,000)
Gain (loss) to be reclassified within 12 months	(43,600,000)
Interest Expense \| Interest Rate Contracts
Derivative [Line Items]
Reclassification of unrealized losses from AOCI	(600,000)
Realized (losses) gains reclassified out of OCI on commodity derivatives designated as cash flow hedging instruments	$ 700,000
Alon Retail Credit Facilities \| Secured Debt
Derivative [Line Items]
Percent of outstanding principal, coverage	77.00%