CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 88,509	$ 89,955
Accounts receivable, net of allowance of $2,668 and $2,756 at December 31, 2015 and December 31, 2014, respectively	20,475	15,785
Deferred tax assets, net	0	3,052
Prepaid expenses and other current assets	5,341	4,696
Total current assets	114,325	113,488
Long-term restricted cash	2,598	2,600
Property and equipment, net	13,251	15,125
Intangible assets, net	4,817	1,687
Goodwill	47,396	41,871
Deferred tax assets, net	11,578	13,110
Investments	2,719	5,501
Other assets	57	200
Total assets	196,741	193,582
Current liabilities:
Accounts payable and accrued expenses	12,163	12,463
Deferred revenue	18,640	16,236
Total current liabilities	30,803	28,699
Deferred rent	4,486	5,167
Other liabilities	1,985	1,790
Total liabilities	$ 37,274	$ 35,656
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized and 0 shares issued and outstanding as of December 31, 2015 and 2014, respectively	$ 0	$ 0
Common stock, $0.01 par value; 100,000,000 shares authorized and 26,235,824 and 26,630,507 shares issued and outstanding at December 31, 2015 and 2014, respectively	264	267
Additional paid-in-capital	173,564	171,951
Accumulated other comprehensive income	0	35
Accumulated deficit	(14,361)	(14,327)
Total stockholders’ equity	159,467	157,926
Total liabilities and stockholders’ equity	$ 196,741	$ 193,582