Quarterly report pursuant to Section 13 or 15(d)

Stock Options and Long Term Incentive Plan - Roll Forward (Details)

v2.4.0.6
Stock Options and Long Term Incentive Plan - Roll Forward (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
LMC Spin-Off adjustment to existing stock options 7,589,815  
LMC Spin-Off adjustment for Liberty Media employees 3,527,791  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Weighted Average Exercise Price, LMC Spin-Off adjustment for Liberty Media employees $ 12.78  
Exercisable 2,070,012  
Exercisable, Weighted Average Exercise Price $ 11.64  
Weighted Average Remaining Contractual Term of Outstanding Options 6 years 1 month 6 days  
Options Exercisable, Weighted Average Remaining Contractual Term 4 years  
After the Conversion
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding, Beginning   1,615,711
Granted 6,030,106  
Exercised (139,599)  
Forfeited (175,548)  
Expired/cancelled 0  
Outstanding, Ending 18,448,276 1,615,711
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Weighted Average Exercise Price, outstanding beginning   $ 93.14
Weighted Average Exercise Price, Granted $ 18.93  
Weighted Average Exercise Price, Exercised $ 10.21  
Weighted Average Exercise Price, Forfeited $ 11.00  
Weighted Average Exercise Price, Expired/cancelled $ 0  
Weighted Average Exercise Price, outstanding ending $ 14.25 $ 93.14
Employees [Member] | After the Conversion
   
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding, Ending 3,517,918