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Derivative Instruments And Hedging Activities (Impact Of Non Designated Derivative Instruments On Income Statement) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Gain (Loss) Recognized in Income on Derivatives | $ (14,829) | $ (5,113) | $ 249
Foreign Exchange Contracts [Member] |  |  |
Gain (Loss) Recognized in Income on Derivatives | (600) | 400 | 200
Foreign Exchange Contracts [Member] | Other Expense [Member] |  |  |
Gain (Loss) Recognized in Income on Derivatives | (630) | 411 | 249
Oil And Natural Gas Commodity Contracts [Member] | Income From Discontinued Operations Net Of Tax [Member] |  |  |
Gain (Loss) Recognized in Income on Derivatives |  | 5,550 |
Oil And Natural Gas Commodity Contracts [Member] | Loss On Commodity Derivative Contracts [Member] |  |  |
Gain (Loss) Recognized in Income on Derivatives | (14,113) | (10,507) |
Interest Rate Swaps [Member] | Other Expense [Member] |  |  |
Gain (Loss) Recognized in Income on Derivatives | $ (86) | $ (567) |

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration