Related Party Transactions (Details 1) (USD $) In Thousands  | 
 Sep. 30, 2011
 
Liberty Media [Member] 
 | 
 Dec. 31, 2010
 
Liberty Media [Member] 
 | 
 Sep. 30, 2011
 
Liberty Media [Member]
 
8.75% Senior Notes due 2015 [Member] 
 | 
 Dec. 31, 2010
 
Liberty Media [Member]
 
8.75% Senior Notes due 2015 [Member] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 2011
 
Liberty Media [Member]
 
13% Senior Notes due 2013 [Member] 
 | 
 Dec. 31, 2010
 
Liberty Media [Member]
 
13% Senior Notes due 2013 [Member] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 2011
 
Liberty Media [Member]
 
7.625% Senior Notes due 2018 [Member] 
 | 
 Dec. 31, 2010
 
Liberty Media [Member]
 
7.625% Senior Notes due 2018 [Member] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 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] 
 | 
 Sep. 30, 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] 
 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Summary of Related party long term debt | |||||||||||||||||||||||||||
| Total principal debt | $ 337,000 | $ 337,000 | $ 150,000 | $ 150,000 | $ 50,000 | $ 50,000 | $ 76,000 | $ 76,000 | $ 11,000 | $ 11,000 | $ 50,000 | $ 50,000 | $ 800,000 | $ 257,000 | $ 778,500 | $ 550,000 | $ 700,000 | ||||||||||
| Less: discounts | 8,971 | 11,093 | (10,389) | (12,213) | 14,000 | (8,814) | (10,116) | 12,708 | (44,843) | (59,592) | (6,388) | (7,620) | (11,196) | (12,054) | |||||||||||||
| Related party long-term debt | $ 328,029 | $ 325,907 | $ 800,000 | $ 800,000 | $ 257,000 | $ 257,000 | $ 778,500 | $ 778,500 | $ 550,000 | $ 550,000 | $ 700,000 | $ 700,000 |