STOCK-BASED COMPENSATION PLANS (Table)

12 Months Ended

Dec. 31, 2012

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Schedule of stock-based compensation, net of estimated forfeitures

	Year Ended December 31,
	2012		2011		2010
Direct costs of customer support	$	936	$	659	$	755
Sales and marketing		929		835		944
General and administrative		3,993		2,489		2,932
	$	5,858	$	3,983	$	4,631

Schedule of stock option activity of stock-based compensation plans

	Shares			Weighted Average Exercise Price
Balance, December 31, 2011		4,643		$	6.13
Granted		1,632			7.64
Exercised		(516	)		4.79
Forfeitures and post-vesting cancellations		(1,058	)		7.09
Balance, December 31, 2012		4,701		$	6.57
Exercisable, December 31, 2012		2,532		$	6.31

Schedule of fully vested and exercisable stock options and stock options expected to vest

	Fully Vested and Exercisable		Expected to Vest
Total shares		2,532		4,376
Weighted-average exercise price	$	6.31	$	6.52
Aggregate intrinsic value	$	4,921,295	$	5,917,234
Weighted-average remaining contractual term (in years)		6.0		7.1

Schedule of restricted stock activity

	Shares			Weighted- Average Grant Date Fair Value
Unvested balance, December 31, 2011		1,165		$	5.10
Granted		772			7.10
Vested		(520	)		3.85
Forfeited		(210	)		6.32
Unvested balance, December 31, 2012		1,207		$	4.96

Schedule of unrecognized compensation costs related to unvested stock-based compensation

	Stock Options		Restricted Stock		Total
Unrecognized compensation	$	6,113	$	3,566	$	9,679
Weighted-average remaining recognition period (in years)		2.6		2.0		2.4