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Goodwill And Other Intangible Assets (Components Of Other Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2011
Dec. 31, 2010
Gross Carrying Amount $ 23,891 $ 17,441
Accumulated Amortization 6,959 6,466
Customer Lists and Relations [Member]
   
Weighted Average Remaining Life (years) 23.6  
Gross Carrying Amount 23,711 17,441
Accumulated Amortization 6,947 6,466
Other [Member]
   
Weighted Average Remaining Life (years) 2.8  
Gross Carrying Amount 180  
Accumulated Amortization $ 12