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Benefit Plans And Obligations For Termination Indemnity (Fair Value Of The Asset Values By Category) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | $ 115,242 |  | $ 101,794 | $ 81,780
Money Market Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 3,459 | [1] |  |
Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 39,613 | [2] |  |
International Companies |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 2,356 | [3] |  |
Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 56,447 | [4] |  |
Other Asset |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 13,367 |  |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 115,242 |  |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) | Money Market Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 3,459 | [1] |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 39,613 | [2] |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) | International Companies |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 2,356 | [3] |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 56,447 | [4] |  |
Quoted Prices In Active Markets For Identical Assets (Level 1) | Other Asset |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 13,367 |  |  |
Significant Observable Inputs (Level 2) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 |  |  |
Significant Observable Inputs (Level 2) | Money Market Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [1] |  |
Significant Observable Inputs (Level 2) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [2] |  |
Significant Observable Inputs (Level 2) | International Companies |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [3] |  |
Significant Observable Inputs (Level 2) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [4] |  |
Significant Observable Inputs (Level 2) | Other Asset |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 |  |  |
Significant Unobservable Inputs (Level 3) |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 |  |  |
Significant Unobservable Inputs (Level 3) | Money Market Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [1] |  |
Significant Unobservable Inputs (Level 3) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [2] |  |
Significant Unobservable Inputs (Level 3) | International Companies |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [3] |  |
Significant Unobservable Inputs (Level 3) | Mutual Funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | 0 | [4] |  |
Significant Unobservable Inputs (Level 3) | Other Asset |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of the asset | $ 0 |  |  |
[1] | This category includes highly liquid daily traded cash-like vehicles.
[2] | This category invests in highly liquid diverse mutual funds representing a diverse offering of debt issuance.
[3] | This category represents common stocks of companies domiciled outside of the U.S.; they can be represented by ordinary shares or ADRs.
[4] | This category represents highly liquid diverse equity mutual funds of varying asset classes and styles.

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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