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Goodwill And Intangible Assets (Estimated Remaining Amortization Expense For Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
2013 $ 2,246
2014 2,963
2015 2,942
2016 2,655
2017 2,518
After 2017 $ 6,631