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Related Party Transactions (Details 5) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Revenue from SIRIUS XM Canada        
Amortization of Sirius XM Canada deferred income     $ 1,388 $ 1,388
Sirius XM Canada [Member]
       
Revenue from SIRIUS XM Canada        
Royalty income 9,001 8,036 17,470 15,501
Amortization of Sirius XM Canada deferred income 694 694 1,388 1,388
Licensing fee revenue 1,171 1,500 2,342 3,000
Advertising and other reimbursements 1,696 416 2,111 833
Total revenue from Sirius XM Canada $ 12,562 $ 10,646 $ 23,311 $ 20,722