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Pension And SERP Plans (Components Of The Net Periodic Pension Plan Cost) (SERP) (Details) (SERP [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
SERP [Member]
       
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 30 $ 30 $ 60 $ 60
Interest cost 64 63 128 126
Amortization of recognized loss 1 3 2 6
Amortization of prior service cost 5 31 10 62
Net pension credit included in employee benefits $ 100 $ 127 $ 200 $ 254