EQUITY-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2014

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

Schedule of Equity-based Compensation Expense for Restricted Stock Awards and Non-Qualified Stock Options

The following table presents total equity-based compensation expense for restricted stock awards and non-qualified stock options included in the line items below in our consolidated statements of operations (in thousands):

	Years Ended December 31,
	2014		2013		2012
Cost of revenue	$	664	$	614	$	482
Selling and marketing	2,832		2,391		1,340
Research and development	724		861		557
General and administrative	6,240		4,006		5,695
Equity-based compensation expense	$	10,460	$	7,872	$	8,074

Schedule Of Share Based Compensation Restricted Stock Units Award Activity

The following table summarizes the activity of our unvested restricted stock awards under our stock plans for the year ended December 31, 2014:

	Shares		Weighted- average grant date fair value
Unvested at December 31, 2013	1,943,760		$	9.64
Granted	1,342,757		11.72
Vested/released	(861,218	)	9.32
Forfeited	(127,647	)	9.75
Unvested at December 31, 2014	2,297,652		$	10.97

Summary of Stock Option Activity Under Stock Option and Incentive Plans

The following table summarizes the stock option activity under our stock plans for the year ended December 31, 2014:

	Options		Weighted- average exercise price		Weighted- average remaining contractual life (in years)	Aggregate intrinsic value
Options outstanding at December 31, 2013	107,668		$	11.29
Granted	—		—
Exercised	(85,334	)	11.29
Expired	—		—
Options outstanding and exercisable at December 31, 2014	22,334		$	11.30	0.37	$	—