Pension And Postretirement Benefits (Schedule Of Fair Value Of Company Pension Plan Assets) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	$ 870,692,000	$ 735,580,000
Quoted Prices In Active Markets For Identical Assets Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	162,020,000	113,971,000
Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	708,672,000	621,609,000
Cash and Money Markets [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	19,425,000	8,130,000
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	19,425,000	8,130,000
Common Stocks Actively Managed U.S. Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	142,595,000	105,841,000
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	142,595,000	105,841,000
Fixed Income Bonds And Notes [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	26,449,000	26,875,000
Fixed Income Bonds And Notes [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	26,449,000	26,875,000
U.S. Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	103,606,000	80,171,000
U.S. Equity Funds [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	103,606,000	80,171,000
Non-U.S. Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	220,794,000	178,841,000
Non-U.S. Equity Funds [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	220,794,000	178,841,000
U.S. Fixed Income, Government and Corporate [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	32,720,000	43,182,000
U.S. Fixed Income, Government and Corporate [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	32,720,000	43,182,000
U.S. Tactical Allocation Balanced Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	15,845,000	18,997,000
U.S. Tactical Allocation Balanced Fund [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	15,845,000	18,997,000
Non-U.S. Fixed Income, Government And Corporate [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	141,407,000	181,073,000
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	141,407,000	181,073,000
International Balanced Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	54,724,000	8,836,000
International Balanced Funds [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	54,724,000	8,836,000
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	72,053,000	73,430,000
Hedge Funds [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	72,053,000	73,430,000
International Property Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	38,449,000	9,445,000
International Property Funds [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	38,449,000	9,445,000
Annuity Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	986,000	759,000
Annuity Contract [Member] | Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	$ 986,000	$ 759,000