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Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Derivative [Line Items] |  |  |  |  |  |  |  |
Maturity period |  |  |  |  | 2 years |  |  |
Derivatives designated as hedging instruments | Foreign exchange forward |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Notional amount | $ 5,600,000 |  |  |  | $ 5,600,000 |  |  |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Total non-designated derivative realized (gain) loss, net | (693,000) |  | 0 |  | (421,000) |  | 0 |
Derivatives not designated as hedging instruments | Foreign exchange forward |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Notional amount | 11,200,000 |  |  |  | 11,200,000 |  |  |
Total non-designated derivative realized (gain) loss, net | (237,000) |  | 0 |  | (237,000) |  | 0 |
Derivatives not designated as hedging instruments | Foreign exchange forward |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Notional amount | 94,000,000 |  |  |  | 94,000,000 |  |  |
Total non-designated derivative realized (gain) loss, net | (303,000) | [1] | 0 | [1] | (303,000) | [1] | 0 | [1]
Derivatives not designated as hedging instruments | Commodity options |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Notional amount | 12,600,000 |  |  |  | 12,600,000 |  |  |
Total non-designated derivative realized (gain) loss, net | (153,000) |  | 0 |  | 119,000 |  | 0 |
Cash Flow Hedges | Derivatives not designated as hedging instruments | Foreign exchange forward |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Total non-designated derivative realized (gain) loss, net |  |  |  |  | $ 321,000 | [1] |  |
[1] | Includes a loss of $321,000 for the discontinuation of cash flow hedges for which the forecasted transactions are not expected to occur within the originally forecasted time frame.

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + 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=35706170&loc=SL5624171-113959 + Details
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- Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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