EQUITY-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 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 March 31,
	2015		2014
Cost of revenue	$	163	$	172
Selling and marketing	683		736
Research and development	266		127
General and administrative	1,860		1,192
Equity-based compensation expense	$	2,972	$	2,227

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 March 31, 2015:

	Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2014	2,297,652		$	10.97
Granted	816,156		9.56
Vested/released	(412,130	)	9.77
Forfeited	(62,808	)	9.93
Unvested at March 31, 2015	2,638,870		$	10.75

Summary of Stock Options Activity

The following table summarizes the stock options activity under our stock plans from December 31, 2014 to March 31, 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	(11,000	)	11.32
Options outstanding and exercisable at March 31, 2015	11,334		$	11.29	0.25	$	—