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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock-based Compensation Plans and Awards - Narrative (Details)

v2.4.1.9

Stock-based Compensation Plans and Awards - Narrative (Details) (USD $)	3 Months Ended		1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015 performance_period
Stock-based Compensation Plans and Awards
Stock-based compensation expense	$ 23,195,000	$ 17,392,000
Employee stock
Stock-based Compensation Plans and Awards
Percentage of eligible compensation to purchase common stock through payroll deductions (as a percent)	15.00%		15.00%
Offering period	6 months
Contributions from employees withheld	1,600,000	900,000
Stock-based compensation expense	600,000	300,000
Common stock issued (in shares)	282,966
Stock options
Stock-based Compensation Plans and Awards
Stock-based compensation expense	2,900,000	3,500,000
Option grants in period	0
Restricted stock units
Stock-based Compensation Plans and Awards
Stock-based compensation expense	19,600,000	13,600,000
Vesting period	4 years
Market stock units
Stock-based Compensation Plans and Awards
Stock-based compensation expense	100,000
Number of performance periods			3
Total stockholder return, duration period			90 days
Performance multiplier, percentage point decrease			3.00%
Performance multiplier, percentage point increase			2.00%
Grants in period	776,000
Total grant date fair value	$ 4,300,000
One-Year Performance Period \| Market stock units
Stock-based Compensation Plans and Awards
Vesting percent			33.33%
Two-Year Performance Period \| Market stock units
Stock-based Compensation Plans and Awards
Vesting percent			33.33%
One and Two-Year Performance Period \| Market stock units \| Maximum
Stock-based Compensation Plans and Awards
Performance multiplier			100.00%
Three-Year Performance Period \| Market stock units \| Maximum
Stock-based Compensation Plans and Awards
Performance multiplier			200.00%

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Number of shares issued during the period as a result of an employee stock purchase plan.

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