Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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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Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- 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

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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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- Details

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Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Maturity period	14 months
Total non-designated derivative realized loss, net	$ 1,061,000	$ 0	$ 0
Foreign exchange options
Derivative [Line Items]
Total non-designated derivative realized loss, net	1,015,000	0	0
Commodity options
Derivative [Line Items]
Total non-designated derivative realized loss, net	(685,000)	0	0
Derivatives not designated as hedging instruments \| Foreign exchange options
Derivative [Line Items]
Notional amount	83,500,000
Derivatives not designated as hedging instruments \| Commodity options
Derivative [Line Items]
Notional amount	10,440,000
Cash Flow Hedges \| Derivatives not designated as hedging instruments \| Foreign exchange options
Derivative [Line Items]
Total non-designated derivative realized loss, net	$ 477,000