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Fair Value (Tables)
6 Months Ended
Jun. 30, 2014
Fair Value [Abstract]  
Schedule Of Long-Term Investments Measured At Fair Value Using Significant Unobservable Inputs (Level 3 Inputs)
(in thousands) 2014  2013
Balance as of January 1$ 9,921 $ 10,324
Net unrealized gains (losses) included in other comprehensive loss  (154)   276
Sales of investments at par value  (57)   (25)
Balance as of June 30$ 9,710 $ 10,575
      
Unrealized losses still held as of June 30$ 1,587 $ 1,575