| 
           Related Party Transactions (Details 1) (USD $) 
        In Thousands, unless otherwise specified  | 
        
           Dec. 31, 2011
 
          8.75% Senior Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2010
 
          8.75% Senior Notes due 2015 [Member] 
         | 
        
           Mar. 31, 2010
 
          8.75% Senior Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2011
 
          9.75% Senior Secured Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2010
 
          9.75% Senior Secured Notes due 2015 [Member] 
         | 
        
           Aug. 31, 2009
 
          9.75% Senior Secured Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2011
 
          13% Senior Notes due 2013 [Member] 
         | 
        
           Dec. 31, 2010
 
          13% Senior Notes due 2013 [Member] 
         | 
        
           Jul. 31, 2008
 
          13% Senior Notes due 2013 [Member] 
         | 
        
           Dec. 31, 2011
 
          7% Exchangeable Senior Subordinated Notes due 2014 [Member] 
         | 
        
           Dec. 31, 2010
 
          7% Exchangeable Senior Subordinated Notes due 2014 [Member] 
         | 
        
           Aug. 31, 2008
 
          7% Exchangeable Senior Subordinated Notes due 2014 [Member] 
         | 
        
           Dec. 31, 2011
 
          7.625% Senior Notes due 2018 [Member] 
         | 
        
           Dec. 31, 2010
 
          7.625% Senior Notes due 2018 [Member] 
         | 
        
           Oct. 31, 2010
 
          7.625% Senior Notes due 2018 [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member]
 
          8.75% Senior Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member]
 
          8.75% Senior Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member]
 
          9.75% Senior Secured Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member]
 
          9.75% Senior Secured Notes due 2015 [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member]
 
          13% Senior Notes due 2013 [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member]
 
          13% Senior Notes due 2013 [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member]
 
          7% Exchangeable Senior Subordinated Notes due 2014 [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member]
 
          7% Exchangeable Senior Subordinated Notes due 2014 [Member] 
         | 
        
           Dec. 31, 2011
 
          Liberty Media [Member]
 
          7.625% Senior Notes due 2018 [Member] 
         | 
        
           Dec. 31, 2010
 
          Liberty Media [Member]
 
          7.625% Senior Notes due 2018 [Member] 
         | 
      
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Summary of Related party long term debt | |||||||||||||||||||||||||||
| Total principal debt | $ 800,000 | $ 257,000 | $ 778,500 | $ 550,000 | $ 700,000 | $ 337,000 | $ 337,000 | $ 150,000 | $ 150,000 | $ 50,000 | $ 50,000 | $ 76,000 | $ 76,000 | $ 11,000 | $ 11,000 | $ 50,000 | $ 50,000 | ||||||||||
| Less: discounts | 9,753 | 12,213 | 14,000 | 8,356 | 10,116 | 12,708 | 39,504 | 59,592 | 5,956 | 7,620 | 10,898 | 12,054 | 8,212 | 11,093 | |||||||||||||
| Related party long-term debt | $ 800,000 | $ 800,000 | $ 257,000 | $ 257,000 | $ 778,500 | $ 778,500 | $ 550,000 | $ 550,000 | $ 700,000 | $ 700,000 | $ 328,788 | $ 325,907 |