Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 90,517	$ 86,737
Short-term investments	212,210	157,119
Accounts receivable, net of allowance of $658 and $702 as of September 30, 2017 and December 31, 2016, respectively	46,354	47,024
Prepaid expenses and other current assets	18,299	9,808
Total current assets	367,380	300,688
Long-term investments	40,358	45,725
Property and equipment, net	51,281	39,401
Deferred tax assets, net	32,359	16,590
Intangible assets, net	5,801	987
Goodwill	900	317
Restricted cash	1,200	1,200
Other noncurrent assets	2,048	2,096
Total assets	501,327	407,004
Current liabilities:
Accounts payable	1,398	2,051
Accrued liabilities	14,679	13,317
Deferred revenues, current	132,167	114,964
Total current liabilities	148,244	130,332
Deferred revenues, noncurrent	16,041	15,528
Other noncurrent liabilities	9,401	2,731
Total liabilities	173,686	148,591
Commitments and contingencies (Note 6)
Stockholders’ equity:
Preferred stock, $0.001 par value; 20,000,000 shares authorized, no shares issued and outstanding at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.001 par value; 1,000,000,000 shares authorized; 37,896,671 and 35,841,001 shares issued and outstanding at September 30, 2017 and December 31, 2016	38	36
Additional paid-in capital	290,520	266,794
Accumulated other comprehensive loss	(120)	(156)
Retained Earnings (Accumulated deficit)	37,203	(8,261)
Total stockholders’ equity	327,641	258,413
Total liabilities and stockholders’ equity	$ 501,327	$ 407,004