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Commitments (Schedule Of Capital Lease Obligations Outstanding) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Commitments [Abstract]    
Capital lease obligations $ 10,103 $ 10,600
Less current installments 582 497
Capital lease obligations, less current installments $ 9,521 $ 10,103