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Major Customer And Geographic Information (Schedule Of Revenue By Geographic Areas) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | $ 2,888,607 | $ 2,817,465 | $ 2,670,133
Europe [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | 561,142 | 552,379 | 541,749
North America [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | 909,395 | 890,686 | 843,985
Israel [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | 519,852 | 697,261 | 650,956
Latin America [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | 258,761 | 165,516 | 152,147
Asia Pacific [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | 568,458 | 459,952 | 459,572
Other Areas [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Revenue | $ 70,999 | $ 51,671 | $ 21,724

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- Definition Amount of revenue from external customers for the business line. Such disclosure is presented if the amount is: (a) included in the measure of business line profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of business line profit or loss. + References No definition available. + Details
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Namespace Prefix: | eslt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration