Employee Benefits (Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Accumulated other comprehensive income, benefits, net of tax	$ 6,696		$ 16,351
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss	6,404		20,831
Prior service cost	297		594
Total before tax	6,701	[1]	21,425	[1]
Accumulated other comprehensive income, benefits, net of tax	3,994		13,015
Post-Retirement Healthcare Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss	4,484		5,358
Prior service cost	50		134
Total before tax	4,534	[1]	5,492	[1]
Accumulated other comprehensive income, benefits, net of tax	$ 2,702		$ 3,336

[1] (1)For 2013, after-tax totals for pension benefits and post-retirement healthcare benefits were $3,994 and $2,702, respectively. The sum of these amounts ($6,696) is reflected in stockholders' equity as accumulated other comprehensive loss. For 2012, after-tax totals for pension benefits and post-retirement healthcare benefits were $13,015 and $3,336, respectively. The sum of these amounts ($16,351) is reflected in stockholders' equity as accumulated other comprehensive loss.