| 
           Related Party Transactions (Details Textual 3) (USD $) 
        In Thousands, unless otherwise specified  | 
        3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|
| 
           Sep. 30, 2014 
         | 
        
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2014 
         | 
        
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2014
 
          Sirius XM Canada [Member] 
         | 
        
           Sep. 30, 2013
 
          Sirius XM Canada [Member] 
         | 
        
           Sep. 30, 2014
 
          Sirius XM Canada [Member] 
         | 
        
           Sep. 30, 2013
 
          Sirius XM Canada [Member] 
         | 
        
           Dec. 31, 2013
 
          8% Convertible Unsecured Subordinated Debentures [Member]
 
          Sirius XM Canada [Member] 
         | 
      |
| Related Party Transaction [Line Items] | |||||||||
| Gain on conversion of debt | $ 1,251 | ||||||||
| Interest rate on instrument | 8.00% | ||||||||
| Amortization related to equity method intangible assets | $ 13,642 | $ 12,107 | $ 41,586 | $ 37,043 | $ 0 | $ 364 | $ 363 | $ 1,091 | |
| X | ||||||||||
| 
             
- Definition 
          Related Party Transaction, Gain on Conversion of Debt Investment No definition available. 
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| X | ||||||||||
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- Definition 
          The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
| 
             
- Definition 
          Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Details 
          
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