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

Benefits Plans (Details 2)

v2.3.0.15

Benefits Plans (Details 2) (USD $) In Thousands, except Per Share data	9 Months Ended
	Sep. 30, 2011
Restricted Stock [Member]
Summary of nonvested restricted stock and restricted stock unit activity
Vested restricted stock, Shares	(1,854)
Vested restricted stock, Weighted Average Grant Date Fair Value	$ 3.30
Restricted Stock Units (RSUs) [Member]
Summary of nonvested restricted stock and restricted stock unit activity
Vested restricted stock, Shares	(101)
Vested restricted stock, Weighted Average Grant Date Fair Value	$ 3.08
Restricted Stock and Restricted Stock Units RSU [Member]
Summary of nonvested restricted stock and restricted stock unit activity
Nonvested, Shares, December 31,2010	2,397
Nonvested, Weighted Average Grant Date Fair Value, December 31, 2010	$ 2.57
Granted, Shares
Granted, Weighted Average Grant Date Fair Value
Forfeited, Shares	(21)
Forfeited, Weighted Average Grant Date Fair Value	$ 3.05
Nonvested, Shares, September 30, 2011	421
Nonvested, Weighted Average Grant Date Fair Value, September 30, 2011	$ 1.46

- Definition

Share based compensation arrangement by share based payment award equity instruments other than option forfeited in period weighted average grant date fair value.

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Summary of nonvested restricted stock and restricted stock unit activity.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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