Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
segment
Jun. 30, 2011
Segment Information        
Number of reportable segments     2  
Reportable segments        
Revenues $ 96,336 $ 67,852 $ 189,185 $ 131,362
Adjusted EBITDA 30,422 31,159 59,987 60,734
Less:        
Acquisition and integration (2,707) (3,195) (4,177) (3,205)
Share-based compensation (4,906) (1,916) (9,377) (3,210)
Depreciation and amortization (13,632) (7,534) (26,861) (14,384)
Income from operations 9,177 18,514 19,572 39,935
Television
       
Reportable segments        
Revenues 61,601 62,718 123,432 121,897
Adjusted EBITDA 25,442 30,402 54,580 60,077
Online
       
Reportable segments        
Revenues 34,735 5,134 65,753 9,465
Adjusted EBITDA $ 4,980 $ 757 $ 5,407 $ 657