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Goodwill and Other Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Carrying amount of goodwill    
Beginning Balance $ 36,647 $ 36,647
Ending balance 36,647 36,647
Television [Member]
   
Carrying amount of goodwill    
Beginning Balance 35,912 35,912
Ending balance 35,912 35,912
Radio [Member]
   
Carrying amount of goodwill    
Beginning Balance 735 735
Ending balance $ 735 $ 735