Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details Textual 2)

v2.4.0.8
Related Party Transactions (Details Textual 2)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Mar. 31, 2014
Sirius XM Canada [Member]
USD ($)
Mar. 31, 2013
Sirius XM Canada [Member]
USD ($)
Dec. 31, 2005
Sirius XM Canada [Member]
USD ($)
Jul. 31, 2008
Sirius XM Canada [Member]
USD ($)
Mar. 31, 2014
Related Party Class A Stock [Member]
Sirius XM Canada [Member]
Dec. 31, 2013
8% Convertible Unsecured Subordinated Debentures [Member]
Sirius XM Canada [Member]
CAD
Mar. 31, 2014
Quarterly Dividend [Member]
Sirius XM Canada [Member]
USD ($)
Mar. 31, 2013
Quarterly Dividend [Member]
Sirius XM Canada [Member]
USD ($)
Related Party Transaction [Line Items]                    
Sirius XM Canada Class A shares owned on a converted basis (in shares)             47,300,000      
Equity method investment, ownership percentage     37.00%              
Voting interest     25.00%              
Face value of 8% convertible unsecured subordinated debentures (in CAD)               4,000    
Interest rate on instrument               8.00%    
Shares received on conversion of debt     675,675              
Increase in investment in related party debt     5,125              
Gain on conversion of debt     1,251              
Dividend received from unconsolidated entity investment 4,222 9,674             4,445 3,752
Initial agreement period with XM Canada         10 years          
Number of additional years XM Canada has to extend the agreements under unilateral option         5 years          
Royalty for all subscriber fees earned by related party         15.00%          
Obligation of XM Canada to pay us for the rights to broadcast and market National Hockey League games         70,300          
Term of obligation of XM Canada for the rights to broadcast and market the National Hockey League         10 years          
Estimated fair value of deferred revenue from XM Canada           34,000        
The Company's share of related party net income (loss) 4,326 1,345 4,689 1,708            
Amortization expense related to equity method intangible assets $ 14,084 $ 12,591 $ 363 $ 363