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Organization, Basis of Presentation and Recent Accounting Pronouncements (Narrative) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2015
USD ($)
TelevisionStation
Jun. 30, 2014
USD ($)
Feb. 12, 2015
campus
Percentage of ownership indicating control for consolidation purposes more than 50%    
Net Cash Used in Investing Activities $ (114,055) $ (92,900)  
Net Cash Provided by Operating Activities $ 77,290 207,978  
Television Broadcasting [Member]      
Number of television broadcast stations | TelevisionStation 5    
Revision Adjustment [Member]      
Net Cash Used in Investing Activities   (19,527)  
Net Cash Provided by Operating Activities   $ 19,527  
KHE Campuses [Member] | Higher Education [Member]      
Number of nationally accredited ground campuses | campus     38