EQUITY-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2015

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 condensed consolidated statements of operations (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Cost of revenue	$	73	$	144	$	339	$	482
Selling and marketing	1,093		594		2,460		2,011
Research and development	327		181		773		481
General and administrative	2,263		1,741		6,249		4,570
Equity-based compensation expense	$	3,756	$	2,660	$	9,821	$	7,544

Schedule of Unvested Restricted Stock Awards

The following table summarizes the activity of unvested restricted stock awards under our stock plans from December 31, 2014 to September 30, 2015:

	Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2014	2,297,652		$	10.97
Granted	1,262,180		9.87
Vested/released	(687,250	)	10.36
Forfeited	(135,308	)	10.46
Unvested at September 30, 2015	2,737,274		$	10.65

Summary of Stock Options Activity

The following table summarizes the stock options activity under our stock plans from December 31, 2014 to September 30, 2015:

	Options		Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding at December 31, 2014	22,334		$	11.30
Granted	—		—
Exercised	—		—
Expired	(22,334	)	11.30
Options outstanding and exercisable at September 30, 2015	—		$	—	—	$	—