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Derivative Financial Instruments - (Tables) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Derivative Financial Instruments [Abstract] |  |
Schedule Of Contracts Designated As Hedged Instruments |
|  | December 31, 2014
|  | Notional |  | Latest
|  | Amount |  | Maturity
Foreign exchange contracts - Canadian Dollars |  | 12,053 |  | February-16
Foreign exchange contracts - British Pounds |  | 2,739 |  | February-16
Foreign exchange contracts - Euros |  | 36,673 |  | February-16
Foreign exchange contracts - Swiss Francs |  | 31,344 |  | February-16
|  | December 31, 2013
|  | Notional |  | Latest
|  | Amount |  | Maturity
Foreign exchange contracts - Canadian Dollars |  | 1,062 |  | February-14
Foreign exchange contracts - Norwegian Kroner |  | 9,253 |  | August-14
Foreign exchange contracts - British Pounds |  | 2,626 |  | February-15
Foreign exchange contracts - Euros |  | 26,806 |  | February-15
Foreign exchange contracts - Swiss Francs |  | 30,698 |  | February-15
Foreign exchange contracts - Japanese Yen |  | 792,696 |  | February-15
Schedule Of Derivative Instruments Fair Value And Balance Sheet Classification |
|  | Classification |  | December 31, 2014 |  | December 31, 2013
Derivative instruments in asset positions: |  |  |  |  |  |  |  |
Forward exchange contracts |  | Prepaid and other current assets |  | $ | 3,066 |  | $ | 682
Forward exchange contracts |  | Other long-term assets |  | $ | 446 |  | $ | 76
Derivative instruments in liability positions: |  |  |  |  |  |  |  |
Forward exchange contracts |  | Accounts payable and accrued liabilities |  | $ | 79 |  | $ | 1,492
Forward exchange contracts |  | Other long-term liabilities |  | $ | 11 |  | $ | 230

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- Definition Tabular disclosure of the presentation of foreign exchange contracts on the statement of financial position, including the fair value amounts and location of such amounts. + 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)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 + Details
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