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Cash And Cash Equivalents (Schedule Of Cash And Cash Equivalents) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents $ 52,873 $ 9,939 $ 32,584 $ 6,584
Cash In Banks [Member]
       
Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents $ 52,873 $ 9,939 $ 32,584