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Intangible Assets, Net (Schedule Of Estimated Future Amortization Expense) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Intangible Assets, Net [Abstract]    
2013 $ 2,541  
2014 2,134  
2015 1,862  
2016 1,672  
2017 and thereafter 1,600  
Intangible assets, net $ 9,809 $ 13,439