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DERIVATIVES (Fair Value of Derivative Instruments) (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
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Dec. 31, 2012
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|---|---|---|
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Designated as Hedging Instrument [Member] | Inventory Supply Arrangement Obligation [Member] | Accrued Expenses [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair Value Asset/(Liability) | $ (1,291) | $ 5,595 |
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Designated as Hedging Instrument [Member] | Inventory Intermediation Agreement Obligation [Member] | Accrued Expenses [Member]
|
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| Derivatives, Fair Value [Line Items] | ||
| Fair Value Asset/(Liability) | 29,563 | 0 |
|
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Accounts Receivable [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair Value Asset/(Liability) | $ (6,269) | $ 1,431 |