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Derivative Instruments And Hedging Activities (Derivatives Not Designated As Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Asset derivatives not designated as hedging instruments | $ 69 | $ 5,946
Liability derivatives not designated as hedging instruments |  | 16,298
Foreign Exchange Contracts [Member] |  |
Asset derivatives not designated as hedging instruments |  | 100
Interest Rate Swaps [Member] |  |
Liability derivatives not designated as hedging instruments |  | 500
Other Current Assets [Member] | Oil Contract [Member] |  |
Asset derivatives not designated as hedging instruments |  | 5,800
Other Current Assets [Member] | Foreign Exchange Contracts [Member] |  |
Asset derivatives not designated as hedging instruments | 69 | 146
Accrued Liabilities [Member] | Oil Contract [Member] |  |
Liability derivatives not designated as hedging instruments |  | 15,777
Accrued Liabilities [Member] | Interest Rate Swaps [Member] |  |
Liability derivatives not designated as hedging instruments |  | 489
Other Liabilities [Member] | Interest Rate Swaps [Member] |  |
Liability derivatives not designated as hedging instruments |  | $ 32

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- Definition Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant