Sirius XM Holdings Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended						3 Months Ended		9 Months Ended					9 Months Ended
	Oct. 31, 2011	Apr. 30, 2011	Feb. 28, 2011	Sep. 30, 2009	Jul. 31, 2008	Jan. 31, 2004	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Sep. 30, 2011 Series A Convertible Preferred Stock	Dec. 31, 2010 Series A Convertible Preferred Stock	Sep. 30, 2011 Convertible Perpetual Preferred Stock, Series B-1	Dec. 31, 2010 Convertible Perpetual Preferred Stock, Series B-1	Sep. 30, 2011 Preferred Stock, Series C Junior	Dec. 31, 2010 Preferred Stock, Series C Junior	Dec. 31, 2009 Preferred Stock, Series C Junior
Stockholder's Equity (Textual) [Abstract]
Issuance of Convertible Perpetual Preferred Stock														12,500,000	12,500,000
Preferred stock, shares outstanding														12,500,000	12,500,000
The rate Series B Preferred Stock is convertible into shares of our common stock														207
Percentage of shares Liberty Media would own of our common stock after conversion of Series B Preferred Stock														40.00%
Preferred Stock Reserved For Issuance In Accordance With Rights Plan																		9,000
Additional Stockholder's Equity (Textual) [Abstract]
Common stock, shares authorized							9,000,000,000		9,000,000,000		9,000,000,000
Common stock, shares issued							3,951,945,992		3,951,945,992		3,933,195,112
Common stock, shares outstanding							3,951,945,992		3,951,945,992		3,933,195,112
Common stock reserved for issuance							3,354,649,000		3,354,649,000
Number of common shares exchanged under share lending agreements					262,400,000
Exchange fee per common share for loaned shares					$ 0.001
Number of share common shares returned on common stock borrowed	202,400,000			60,000,000
Shares of common stock loaned under share lending agreements							202,400,000		202,400,000
Amortization of costs related to share-lending arrangement and other issuance costs							$ 1,276	$ 2,555	$ 6,727	$ 7,473
Unamortized, debt issuance costs							42,961		42,961		51,243
Unamortized, debt issuance costs recorded in deferred financing fees, net							42,101		42,101		50,218
Unamortized, debt issuance costs recorded in long-term related party assets							859		859		1,025
Estimated fair value of remaining loaned shares							305,624		305,624		329,912
Common stock delivered under seven agreement with programming provider						15,173,070
Value of common stock delivered under agreement with sports programming provider						40,967
Share-based payment expense related to seven year agreement with sports programming provider							0	1,641	1,568	3,501
Preferred stock, par value							$ 0.001		$ 0.001		$ 0.001
Remaining value of common stock included in other current assets related to the seven year agreement with sports provider							$ 0		$ 0		$ 1,568
Undesignated preferred stock, shares authorized							50,000,000		50,000,000		50,000,000
Number of outstanding warrants to acquire common stock							24,346,000		24,346,000
Average exercise price of warrant							$ 2.96		$ 2.96
Warrants exercised to purchase common stock			16,500,000
Issuance of shares of common stock resulting from the exercise of warrants based on the exercise price			7,122,951
The Rights Plan is intended to act as a deterrent to any person or group acquiring this percentage or more of our outstanding common stock		4.90%
Warrants expired									1,575,000