Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details 7)

v2.4.0.8
Related Party Transactions (Details 7) (XM Canada [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
XM Canada [Member]
 
Related Party Transaction [Line Items]  
Amortization of XM Canada deferred income $ 1,388 [1]
Subscriber and activation fee royalties 5,483 [1]
Licensing fee revenue 3,000 [1]
Advertising reimbursements 833 [1]
Total revenue $ 10,704 [1]
[1] XM Canada combined with Sirius Canada in June 2011.