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Employee Benefit Plans (The Fair Value Of Each Asset Category Of The Total Investments Held By The Plans) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 32,558 $ 26,109 $ 24,108
Insurance Contracts [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 32,558 $ 26,109