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

Stock-based Compensation Plans and Awards - Schedule of stock-based compensation expenses related to all employee and non-employee stock-based awards (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stock-based compensation expenses:
Total stock-based compensation expense	$ 27,484	$ 20,613	$ 50,679	$ 38,005
Cost of revenue - Other
Stock-based compensation expenses:
Total stock-based compensation expense	1,406	1,032	2,613	1,913
Product development
Stock-based compensation expenses:
Total stock-based compensation expense	5,354	4,426	9,959	7,887
Sales and marketing
Stock-based compensation expenses:
Total stock-based compensation expense	13,327	9,922	24,671	18,233
General and administrative
Stock-based compensation expenses:
Total stock-based compensation expense	$ 7,397	$ 5,233	$ 13,436	$ 9,972