Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Data--Unaudited (Details)

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Quarterly Financial Data--Unaudited (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Quarterly Financial Data [Line Items]                      
Total revenue $ 1,000,078 $ 961,509 $ 940,110 $ 897,398 $ 892,415 $ 867,360 $ 837,543 $ 804,722 $ 3,799,095 $ 3,402,040 $ 3,014,524
Cost of services (396,304) (336,464) (331,465) (330,257) (328,882) (314,204) (293,975) (292,309)      
Income from operations 245,357 284,529 267,736 246,931 213,096 231,749 227,942 199,238 1,044,553 872,025 676,117
Net income 65,197 62,894 125,522 123,602 156,244 74,514 3,134,170 107,774 377,215 3,472,702 426,961
Net income per common share--basic (in dollars per share) $ 0.01 [1] $ 0.01 [1] $ 0.02 [1] $ 0.02 [1] $ 0.02 [1] $ 0.01 [1] $ 0.49 [1] $ 0.02 [1] $ 0.06 $ 0.55 $ 0.07
Net income per common share--diluted (in dollars per share) $ 0.01 [1] $ 0.01 [1] $ 0.02 [1] $ 0.02 [1] $ 0.02 [1] $ 0.01 [1] $ 0.48 [1] $ 0.02 [1] $ 0.06 $ 0.51 $ 0.07
Sirius XM Radio Inc. [Member]
                      
Quarterly Financial Data [Line Items]                      
Total revenue 1,000,078 [2] 961,509 [2] 940,110 [2] 897,398 [2] 892,415 [2] 867,360 [2] 837,543 [2] 804,722 [2] 3,799,095 3,402,040 3,014,524
Cost of services (396,304) [2] (336,464) [2] (331,465) [2] (330,257) [2] (328,882) [2] (314,204) [2] (293,975) [2] (292,309) [2]      
Income from operations 245,357 [2] 284,529 [2] 267,736 [2] 246,931 [2] 213,096 [2] 231,749 [2] 227,942 [2] 199,238 [2] 1,044,553 872,025 676,117
Net income $ (378,512) [2] $ 62,894 [2] $ 125,522 [2] $ 123,602 [2] $ 156,244 [2] $ 74,514 [2] $ 3,134,170 [2] $ 107,774 [2] $ (66,494) $ 3,472,702 $ 426,961
[1] The sum of quarterly net income per share applicable to common stockholders (basic and diluted) does not necessarily agree to the net income per share for the year due to the timing of common stock issuances.
[2] Net income per share for Sirius XM is not presented since Sirius XM is a wholly-owned subsidiary of Holdings.