Derivatives and Fair Value of Financial Instruments (Details 5) (USD $)
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12 Months Ended | 12 Months Ended | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2013
Commodities
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Dec. 31, 2012
Commodities
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Dec. 31, 2013
Commodities
Other current assets
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Dec. 31, 2012
Commodities
Other current assets
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Dec. 31, 2013
Commodities
Accrued liability
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Dec. 31, 2013
Foreign currencies
item
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Dec. 31, 2013
Foreign currencies
Other current assets
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Dec. 31, 2013
Foreign currencies
Other accrued liabilities
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Dec. 31, 2012
Foreign currencies
Other accrued liabilities
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Dec. 31, 2013
Interest rate
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Dec. 31, 2013
Interest rate
Other accrued liabilities
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Dec. 31, 2012
Interest rate
Other accrued liabilities
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Fair value of each type of derivative and its location in the Consolidated Balance Sheets | ||||||||||||
Asset Derivatives | $ 2,331,000 | $ 6,916,000 | $ 2,763,000 | |||||||||
Liability Derivatives | 16,014,000 | 7,112,000 | 101,000 | 4,157,000 | 4,103,000 | 9,810,000 | ||||||
Margin account | 29,822,000 | 14,063,000 | ||||||||||
Derivative assets and liabilities, net basis | 16,731,000 | 13,867,000 | 592,000 | |||||||||
Loss due to credit risk associated with derivative contracts | $ 2,763,000 | $ 0 | ||||||||||
Number of counterparties | 7 |