Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 117,887	$ 130,795
Short-term marketable securities	5,014
Accounts receivable, less allowance for doubtful accounts of $366 and $279, respectively	17,945	15,422
Deferred costs	14,761	12,055
Deferred income taxes	76	76
Other current assets	5,688	3,846
Total current assets	161,371	162,194
PROPERTY AND EQUIPMENT, net	13,079	11,361
GOODWILL	33,527	34,854
INTANGIBLE ASSETS, net	15,766	18,851
MARKETABLE SECURITIES, non-current	12,514
OTHER ASSETS
Deferred costs, non-current	5,465	5,267
Deferred income taxes, non-current	10,758	11,035
Other non-current assets	397	213
Total assets	252,877	243,775
CURRENT LIABILITIES
Accounts payable	2,381	3,961
Accrued compensation	9,922	9,926
Accrued expenses	2,338	2,470
Deferred revenue	8,072	7,505
Deferred rent	723	698
Total current liabilities	23,436	24,560
OTHER LIABILITIES
Deferred revenue, non-current	11,701	10,653
Deferred rent, non-current	3,015	3,471
Total liabilities	$ 38,152	$ 38,684
COMMITMENTS and CONTINGENCIES
STOCKHOLDERS' EQUITY
Preferred stock, $0.001 par value; 5,000,000 shares authorized; 0 shares issued and outstanding
Common stock, $0.001 par value; 55,000,000 shares authorized; 16,620,918 and 16,348,747 shares issued and outstanding, respectively	$ 17	$ 16
Additional paid-in capital	260,580	250,633
Accumulated deficit	(41,581)	(44,088)
Accumulated other comprehensive loss	(4,291)	(1,470)
Total stockholders' equity	214,725	205,091
Total liabilities and stockholders' equity	$ 252,877	$ 243,775