Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

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Stockholders' Equity (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
 1 Months Ended 3 Months Ended 3 Months Ended
Dec. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Series B Preferred Stock [Member]
Dec. 31, 2012
Series B Preferred Stock [Member]
Mar. 31, 2013
Common Stock [Member]
Mar. 31, 2009
Liberty Media [Member]
Series B Preferred Stock [Member]
Jan. 31, 2013
Liberty Media [Member]
Common Stock [Member]
Additional Stockholder's Equity (Textual) [Abstract]                
Common stock, par value (in dollars per share) $ 0.001 $ 0.001            
Common stock, shares authorized 9,000,000,000 9,000,000,000            
Common stock, shares issued 5,262,440,085 6,442,718,811            
Common stock, shares outstanding 5,262,440,085 6,433,648,535            
Common stock reserved for issuance   556,764,000            
Stock repurchase program, authorized amount $ 2,000,000              
Common stock repurchased (in shares)           157,183,759    
Common stock repurchased   493,635       493,635    
Treasury stock, at cost 0 27,923            
Remaining amount authorized under the stock repurchase program   1,506,365            
Amortization of costs related to share-lending arrangement and other issuance costs   3,209 2,982          
Unamortized, debt issuance costs 27,652 22,238            
Unamortized, debt issuance costs recorded in deferred financing fees, net 27,099 21,751            
Unamortized, debt issuance costs recorded in long-term related party assets $ 553 $ 487            
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001            
Undesignated preferred stock, shares authorized 50,000,000 50,000,000            
Preferred stock, shares issued       0 6,250,100   12,500,000  
Preferred stock, shares outstanding       0 6,250,100      
Amount of shares owned by related party               1,293,509,076
Number of outstanding warrants to acquire common stock (in shares) 18,455,000 18,455,000            
Average exercise price 2.55 2.55