Equity Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Unvested Restricted Common Stock Activity

A summary of our unvested restricted stock activity during 2014 is as follows (shares in thousands):

	2014
	Shares			Weighted- Average Grant Date Fair Value
Unvested awards, January 1, 2014		1,922		$	18.57
Awards granted		1,295			26.45
Awards forfeited/cancelled		(151	)		20.19
Awards vested		(755	)		18.79
Unvested awards, December 31, 2014		2,311		$	22.81