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Derivatives (Details 3) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Gain (loss) on derivative |  |  |
Gains or losses that were excluded from the assessment of the effectiveness of fair value hedges | $ 0 | $ 0 | $ 0
Gains or losses, which were excluded from the assessment of the effectiveness of cash flow hedges | 0 | 0 | 0
Derivatives instruments designated as hedging instruments | Fair value hedges |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedge | 2,685 | (20,869) | (21,357)
Derivatives instruments designated as hedging instruments | Fair value hedges | Hedged items |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedged Item | 3,059 | 24,510 | 33,175
Derivatives instruments designated as hedging instruments | Fair value hedges | Revenue | Hedged item commitments |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedged Item |  | (201) | (12,973)
Derivatives instruments designated as hedging instruments | Fair value hedges | Cost of revenue | Hedged item commitments |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedged Item |  | 739 | 7,771
Derivatives instruments designated as hedging instruments | Fair value hedges | Cost of revenue | Inventories |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedged Item | 3,059 | 23,972 | 38,377
Derivatives instruments not designated as hedging instruments |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) | 15,976 | 13,645 | 18,687
Commodity contracts | Derivatives instruments designated as hedging instruments | Fair value hedges | Revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedge |  | 265 | 11,608
Commodity contracts | Derivatives instruments designated as hedging instruments | Fair value hedges | Cost of revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedge | 2,685 | (19,717) | (26,039)
Commodity contracts | Derivatives instruments not designated as hedging instruments | Revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) | 25,420 | 14,967 | 14,283
Commodity contracts | Derivatives instruments not designated as hedging instruments | Cost of revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) | (5,391) | 3,333 | 3,137
Foreign currency contracts | Derivatives instruments designated as hedging instruments | Cash flow hedges |  |  |
Gain (loss) on derivative |  |  |
Amount of Gain Recognized in Accumulated Other Comprehensive Income (Effective Portion) | 11 | 196 |
Foreign currency contracts | Derivatives instruments designated as hedging instruments | Cash flow hedges | Other (expense) income, net |  |  |
Gain (loss) on derivative |  |  |
Amount of Gain Reclassified from Accumulated Other Comprehensive Income (Effective Portion) | 159 | 48 |
Foreign currency contracts | Derivatives instruments not designated as hedging instruments | Revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) | (55) | (2,384) | 1,653
Foreign currency contracts | Derivatives instruments not designated as hedging instruments | Other (expense) income, net |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) | (3,998) | (2,271) | (386)
Commodity contracts. | Derivatives instruments designated as hedging instruments | Fair value hedges | Cost of revenue |  |  |
Gain (loss) on derivative |  |  |
Realized and Unrealized Gain (Loss) on Hedge |  | $ (1,417) | $ (6,926)

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- Definition Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition Net gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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