Derivative Instruments (Narratives) (Details) (USD $)	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative Instruments in Hedges, at Fair Value, Net	$ 0
Designated As Hedging Instrument [Member] \| Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Foreign Currency Derivatives	9,392,000
Derivatives Not Designated As Hedging Instruments [Member] \| Currency Swap [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Foreign Currency Derivatives	4,554,000
Derivatives Not Designated As Hedging Instruments [Member] \| Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Foreign Currency Derivatives	$ 2,803,000

Aggregate net fair value of all derivative instruments designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13495-108611

Name:	us-gaap_DerivativeInstrumentsInHedgesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant