Sirius XM Holdings Inc. Annual report pursuant to Section 13 and 15(d)

Schedule II - Schedule of Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for doubtful accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance January 1,	$ 9,078	$ 11,711	$ 9,932
Charged to Expenses (Benefit)	44,961	39,016	34,548
Write-offs/ Payments/ Other	(46,224)	(41,649)	(32,769)
Balance December 31,	7,815	9,078	11,711
Deferred tax assets—valuation allowance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance January 1,	7,831	9,835	3,360,740
Charged to Expenses (Benefit)	(2,836)	(4,228)	(3,195,651)
Write-offs/ Payments/ Other	0	2,224	(155,254)
Balance December 31,	4,995	7,831	9,835
Allowance for obsolescence [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance January 1,	14,218	16,159	15,430
Charged to Expenses (Benefit)	(335)	(773)	4,430
Write-offs/ Payments/ Other	(3,159)	(1,168)	(3,701)
Balance December 31,	$ 10,724	$ 14,218	$ 16,159