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Stock-Based Compensation (Details 8) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Stock-Based Compensation      
Non-cash, stock-based compensation $ 19,199 $ 34,024 $ 29,647
Non-Performance Based Stock Awards      
Stock-Based Compensation      
Unrecognized compensation expense $ 14,000    
Future forfeiture rate (as a percent) 3.60%    
Weighted average period for recognition of compensation cost 2 years    
Stock option adjustment 2012      
Stock-Based Compensation      
Non-cash, stock-based compensation   4,000  
Subscriber-related      
Stock-Based Compensation      
Non-cash, stock-based compensation $ 2,164 1,859 1,947
General and administrative      
Stock-Based Compensation      
Non-cash, stock-based compensation $ 17,035 $ 32,165 $ 27,700