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Description Of Business And Basis Of Presentation (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
segment
network
Sep. 30, 2014
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Number of Operating Segments | segment     2  
Number of Nationally Distributed Programming Networks | network     5  
Program Rights Write Offs $ 13,199 $ 9,030 $ 26,800 $ 16,523