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Shareholders' Equity (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended |  |  | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended
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Nov. 30, 2012 | Nov. 30, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Dec. 31, 2010 | Nov. 30, 2011 2007 Stock Option Plan | Jan. 31, 2007 2007 Stock Option Plan | Dec. 31, 2013 2007 Stock Option Plan | Dec. 31, 2013 Elbit Systems' Stock Options Plans | Jan. 31, 2007 Elbit Systems' Stock Options Plans | Jan. 31, 2007 Regular Options 2007 Stock Option Plan | Jan. 31, 2007 Cashless Options 2007 Stock Option Plan | Dec. 31, 2013 Stock Appreciation Rights (SARs) | Dec. 31, 2013 Phantom Options | Dec. 31, 2012 Phantom Options
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options vested period from the date of grant, years |  |  |  |  |  |  |  | 6 years | 5 years |  |  |  |  |  |  |  |
Options exercisable |  |  | 190,300 | 1,271,266 | 1,292,806 |  |  |  |  |  |  | 1,250,000 | 1,250,000 | 1,250,000 |  |  |
Period measuring the average closing price, in days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 days |
Percent vested and exercisable from the second anniversary of the commencement date |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional percentage vested and exercisable from the third anniversary of the commencement date |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining percentage vested and exercisable from the third anniversary of the commencement date |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options expiration date |  | 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options available for future grant under the Plan |  |  |  |  |  |  |  |  |  | 73,926 |  |  |  |  |  |  |
Compensation expense | $ 2,400 | $ 980 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,055 | $ 312
Aggregate intrinsic value of outstanding options |  |  | 3,378 | 4,294 |  |  |  |  |  |  |  |  |  |  |  |  |
Total intrinsic value of options exercised |  |  | 29,663 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost related to share-based compensation arrangements granted |  |  |  |  |  |  |  |  |  |  | 592 |  |  |  |  |  |
Expected cost recognition period, in years |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options vested and expected to be vested |  |  | 267,167 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options, outstanding, weighted average exercise price |  |  | $ 48.09 | $ 36.95 | $ 37.07 |  | $ 35.96 |  |  |  |  |  |  |  |  |  |
Aggregate intrinsic value of exercisable options |  |  | 3,371 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options vested and expected to be vested, weighted average exercise price |  |  | $ 48.09 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation expense recognized in income statement |  |  | 440 | 3,028 | 1,996 |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, number of shares authorized to be repurchased |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period, shares |  |  | 0 | 759,632 | 240,368 |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock, value, acquired |  |  |  | $ 26,006 | $ 10,101 |  |  |  |  |  |  |  |  |  |  |  |
Percent of SARs granted that are exercisable on the first anniversary of the grant date |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional percentages of SARs that are exercisable on each of the three subsequent anniversaries after the first anniversary |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period from grant date each tranche has a benefit accumulation period, in years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |
Maximum term of SAR from the grant date, years |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |
SARs outstanding number |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000,000 |  |
SARs, number vested |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000 |  |
SARs, weighted average exercise price per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 52.16 |  |
SARs, expired |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,000,000 |  |
Options allocated for Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,078,507 |
Available for grant, basic price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40.51 |
Percentage limited increase of benefit to be paid in the share price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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