Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 122,199	$ 94,320
Short-term marketable securities	5,006	58,630
Accounts receivable—net of allowance of $953 and $1,092 at September 30, 2019 and December 31, 2018, respectively	41,655	35,514
Prepaid expenses	14,273	13,918
Deferred commissions	12,156	8,226
Other current assets	4,649	2,019
Total current assets	199,938	212,627
Property and equipment, net	28,893	27,388
Right-of-use assets	37,120
Goodwill	69,952	12,354
Intangible assets, net	35,145	6,262
Noncurrent prepaid expenses	4,055	3,516
Deferred commissions, net of current portion	15,295	11,404
Other assets	560	446
Total assets	390,958	273,997
Current liabilities:
Accounts payable	7,611	3,581
Accrued liabilities	14,431	9,809
Deferred rent		1,329
Lease liabilities	6,324
Deferred revenue	162,583	117,298
Total current liabilities	190,949	132,017
Deferred revenue, net of current portion	2,975	3,372
Lease liabilities, net of current portion	42,685
Deferred rent, net of current portion		10,150
Other long-term liabilities	3,619	20
Total liabilities	240,228	145,559
Stockholders’ equity:
Common stock	3	3
Additional paid-in capital	475,953	395,865
Accumulated other comprehensive income (loss)	10	(8)
Accumulated deficit	(325,236)	(267,422)
Total stockholders’ equity	150,730	128,438
Total liabilities and stockholders’ equity	$ 390,958	$ 273,997