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Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Foreign Exchange Contract [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss) | $ (87) | $ (14) | $ (153) | $ (9)
Copper Derivative Instruments [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss) | 15 | (162) | (663) | (345)
Interest Rate Swap Instrument [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Contracts designated as hedging instruments, Other comprehensive income (loss), Amount of gain (loss) | $ 13 | $ 121 | $ 39 | $ 112

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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=7476318&loc=SL5624171-113959 + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or 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 (e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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