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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets, Net Of Amortization) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 34,848 $ 43,552
Less accumulated amortization (8,118) (8,022)
Intangible assets, net 26,730 35,530
Customer Lists And Relationships [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross 23,881 30,809
Product Technologies [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross 8,014 8,992
Trade Name [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross 2,006 2,246
Core Technologies [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 947 $ 1,505