Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

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Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended 6 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2013
Subscriber relationships [Member]
Dec. 31, 2012
Subscriber relationships [Member]
Jun. 30, 2013
Licensing agreements [Member]
Dec. 31, 2012
Licensing agreements [Member]
Jun. 30, 2013
Proprietary software [Member]
Dec. 31, 2012
Proprietary software [Member]
Jun. 30, 2013
Developed technology [Member]
Dec. 31, 2012
Developed technology [Member]
Jun. 30, 2013
Leasehold interests [Member]
Dec. 31, 2012
Leasehold interests [Member]
Jun. 30, 2013
FCC licenses [Member]
Dec. 31, 2012
FCC licenses [Member]
Jun. 30, 2013
Trademark [Member]
Dec. 31, 2012
Trademark [Member]
Summary of indefinite life intangible assets                                
Carrying value                         $ 2,083,654 $ 2,083,654 $ 250,000 $ 250,000
Summary of definite life intangible assets                                
Weighted average useful lives (in years)     9 years   9 years 1 month 6 days   6 years   10 years   7 years 4 months 24 days          
Gross carrying value     380,000 380,000 78,289 78,489 16,552 16,552 2,000 2,000 132 132        
Accumulated amortization (316,153) (291,217) (252,826) (233,317) (49,169) (44,161) (13,087) (12,777) (983) (883) (88) (79)        
Net carrying value 160,820   127,174 146,683 29,120 34,328 3,465 3,775 1,017 1,117 44 53        
Total intangible assets, Gross carrying value 2,810,627 2,810,827                            
Total intangible assets, Net carrying value $ 2,494,474 $ 2,519,610