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Retirement Plans And Postretirement Benefits (Fair Asset Values Of Plan Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 100,905 | $ 93,897
U.S. [Member] | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 1,502 | 1,986
U.S. [Member] | Collective Trusts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 99,403 | 91,911
U.S. [Member] | Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 1,502 | 1,986
U.S. [Member] | Level 1 [Member] | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 1,502 | 1,986
U.S. [Member] | Level 1 [Member] | Collective Trusts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
U.S. [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 99,403 | 91,911
U.S. [Member] | Level 2 [Member] | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
U.S. [Member] | Level 2 [Member] | Collective Trusts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 99,403 | 91,911
U.S. [Member] | Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
U.S. [Member] | Level 3 [Member] | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
U.S. [Member] | Level 3 [Member] | Collective Trusts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Foreign [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 11,871 | 11,293
Foreign [Member] | Foreign Government Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 729 | 840
Foreign [Member] | Fixed Insurance Contracts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 11,142 | 10,453
Foreign [Member] | Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Foreign [Member] | Level 1 [Member] | Foreign Government Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Foreign [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 729 | 840
Foreign [Member] | Level 2 [Member] | Foreign Government Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 729 | 840
Foreign [Member] | Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 11,142 | 10,453
Foreign [Member] | Level 3 [Member] | Foreign Government Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Foreign [Member] | Level 3 [Member] | Fixed Insurance Contracts [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 11,142 | $ 10,453

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: 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=58740216&loc=d3e1928-114920 + Details
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