Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Stock-Based Compensation

Summary of stock option activity

A summary of stock option activity during the six months ended June 30, 2014 is as follows (in thousands, except for per share amounts):

			Weighted-
			Average		Weighted-
			Exercise		Average
			Price (in		Contractual	Aggregate
			dollars per		Life (in	Intrinsic
	Shares		share)		years)	Value
Options outstanding at December 31, 2013	1,667		$	7.05
Granted	1,799		7.90
Exercised	—		—
Forfeited	(586	)	8.65
Expired	(1	)	3.42
Options outstanding at June 30, 2014	2,879		$	7.26	8.28	$	64,451
Options exercisable at June 30, 2014	1,363		$	6.51	6.76	$	31,520
Options vested or expected to vest at June 30, 2014	2,795		$	7.24	8.24	$	62,607