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Pension And Postretirement Benefits (Schedule Of Fair Value Of Company Pension Plan Assets) (Details) (USD $) | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | $ 735,580,000 | $ 678,250,000
Quoted Prices In Active Markets For Identical Assets Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 113,971,000 | 131,953,000
Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 621,609,000 | 546,297,000
Cash and Money Markets [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 8,130,000 | 38,084,000
Cash and Money Markets [Member] | Quoted Prices In Active Markets For Identical Assets Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 8,130,000 | 38,084,000
Common Stocks Actively Managed U.S. Equities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 105,841,000 | 93,869,000
Common Stocks Actively Managed U.S. Equities [Member] | Quoted Prices In Active Markets For Identical Assets Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 105,841,000 | 93,869,000
Fixed Income Bonds And Notes [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 26,875,000 | 25,485,000
Fixed Income Bonds And Notes [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 26,875,000 | 25,485,000
U.S. Equity Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 80,171,000 | 26,322,000
U.S. Equity Funds [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 80,171,000 | 26,322,000
Non-U.S. Equity Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 178,841,000 | 198,655,000
Non-U.S. Equity Funds [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 178,841,000 | 198,655,000
U.S. Fixed Income, Government and Corporate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 43,182,000 | 33,810,000
U.S. Fixed Income, Government and Corporate [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 43,182,000 | 33,810,000
U.S. Tactical Allocation Balanced Fund [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 18,997,000 | 16,455,000
U.S. Tactical Allocation Balanced Fund [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 18,997,000 | 16,455,000
Non-U.S. Fixed Income, Government And Corporate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 181,073,000 | 159,611,000
Non-U.S. Fixed Income, Government And Corporate [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 181,073,000 | 159,611,000
International Balanced Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 8,836,000 | 8,223,000
International Balanced Funds [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 8,836,000 | 8,223,000
Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 73,430,000 | 67,967,000
Hedge Funds [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 73,430,000 | 67,967,000
International Property Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 9,445,000 | 9,011,000
International Property Funds [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 9,445,000 | 9,011,000
Annuity Contract [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | 759,000 | 758,000
Annuity Contract [Member] | Significant Other Observable Inputs Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total Fair Value | $ 759,000 | $ 758,000

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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=6867990&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: 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=21915506&loc=d3e1928-114920 + Details
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