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Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Foreign Exchange Contract [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Effect of current derivative instruments | $ 10 |  | $ (87) |
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Interest Rate Swap [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Effect of current derivative instruments | 36 | $ 82 | 85 | $ 121
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Foreign Exchange Contract [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Effect of current derivative instruments | (315) | 71 | (123) | (83)
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Copper Derivative Instruments [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Effect of current derivative instruments | $ (245) | $ (390) | $ (694) | $ (1,053)

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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=56946850&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=56946850&loc=SL5624171-113959 + Details
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