Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Options Outstanding Under Equity-Based Compensation Plans

A summary of the changes in stock options outstanding during the nine months ended September 30, 2015 is presented below:

	Number of Options		Weighted Average Remaining Contract Term (Years)	Weighted Average Exercise Price		Aggregate Intrinsic Value
Options outstanding as of December 31, 2014	1.6		6.3	$	11.61	$	4.0
Granted	0.2			12.04		—
Exercised	(0.3	)		9.83		0.9
Canceled	—					—
Options outstanding as of March 31, 2015	1.5		7.2	$	11.78	$	1.2
Granted	0.6			12.83		—
Exercised	(0.1	)		9.10		0.2
Canceled	(0.1	)		10.47		—
Options outstanding as of June 30, 2015	1.9		7.9	$	12.24	$	7.1
Granted	—			—		—
Exercised	—			—		—
Canceled	—			—		—
Options outstanding as of September 30, 2015	1.9		7.8	$	12.29	$	1.0
Options exercisable as of September 30, 2015	0.8		5.7	11.25		$	0.8

RSUs Outstanding Under Equity-Based Compensation Plans

A summary of the changes in RSUs outstanding during the nine months ended September 30, 2015 is presented below:

	Number of RSUs		Weighted Average Grant Date Fair Value Per RSU
Unvested units as December 31, 2014	5.0		$	13.12
Granted	0.3		13.15
Vested	(0.7	)	12.72
Canceled	(0.3	)	15.08
Unvested units as of March 31, 2015	4.3		$	13.39
Granted	2.4		12.90
Vested	(0.2	)	10.53
Canceled	(0.1	)	14.32
Unvested units as of June 30, 2015	6.4		$	13.27
Granted	0.1		15.18
Vested	(0.2	)	13.48
Canceled	(0.3	)	13.82
Unvested Units as of September 30, 2015	6.0		13.21