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Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Commodity Contract [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) recorded in other comprehensive income (loss) |  |  | $ (408)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss) |  |  | (256)
Designated as Hedging Instrument [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) recorded in other comprehensive income (loss) | $ (582) | $ (671) | (454)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss) | (164) | (1,060) | (566)
Designated as Hedging Instrument [Member] | Forward Currency Contracts [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) recorded in other comprehensive income (loss) | (582) | (671) | (46)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss) | $ (164) | $ (1,060) | $ (310)

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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=56946850&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=56946850&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) 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 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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