Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 43,554	$ 50,211
Accounts receivable, less allowances of $198 and $192, respectively	37,785	38,309
Prepaid expenses and other current assets	3,591	3,384
Total current assets	84,930	91,904
COMPUTERS, FURNITURE AND EQUIPMENT-NET	3,762	3,999
OTHER ASSETS:
Intangible assets-net	41,918	44,249
Goodwill	65,505	65,825
Security deposits and other non-current assets	1,196	1,291
TOTAL ASSETS	197,311	207,268
CURRENT LIABILITIES:
Accounts payable	10,626	9,128
Accrued expenses	8,045	12,035
Deferred revenue-current portion	9,032	9,648
Notes payable-current portion	13,112	22,443
Other current liabilities	305	305
Total current liabilities	41,120	53,559
OTHER LIABILITIES:
Deferred rent and other non-current liabilities	3,542	3,543
Deferred revenue-less current portion	1,751	1,415
Notes payable-less current portion	53	131
Total liabilities	46,466	58,648
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stock, par value $0.0001 per share-150,000,000 shares authorized as of December 31, 2012 and March 31, 2013; 37,613,327 and 37,508,169 shares issued and outstanding as of December 31, 2012 and March 31, 2013, respectively	4	4
Additional paid-in capital	193,448	191,581
Warrants for common stock	10,610	10,610
Accumulated deficit	(52,632)	(53,757)
Other comprehensive gain (loss)	(585)	182
Total stockholders' equity	150,845	148,620
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 197,311	$ 207,268