CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 381,742	$ 77,584
Marketable securities	106,214	20,764
Accounts receivable, net of allowance for doubtful accounts of $866 and $956 at December 31, 2019 and December 31, 2018, respectively	60,228	65,107
Deferred commissions	14,108	8,178
Other receivables	2,432	1,181
Prepaid expenses and other	6,508	4,417
Total current assets	571,232	177,231
Property and equipment, net	39,745
Property and equipment, net		41,468
Operating lease right-of-use assets	15,352
Deferred commissions, non-current	14,977	10,569
Intangible assets, net	1,651	1,266
Other assets	3,439	577
Total assets	646,396	231,111
Current liabilities
Accounts payable	7,057	5,461
Accrued expenses and other current liabilities	49,930	36,353
Deferred revenue	173,617	148,545
Current portion of financing obligations	1,328	1,222
Total current liabilities	231,932	191,581
Convertible senior notes, net	280,601	0
Deferred revenue, non-current	32,569	25,171
Other long-term liabilities	1,498	6,891
Operating lease liabilities, non-current	18,564
Financing obligations, non-current	15,889
Financing obligations, non-current		17,208
Total liabilities	581,053	240,851
Stockholders’ equity (deficit)
Preferred stock, $0.001 par value per share, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Additional paid-in-capital	420,170	297,145
Accumulated deficit	(355,161)	(307,027)
Accumulated other comprehensive income	287	98
Total stockholders’ equity (deficit)	65,343	(9,740)
Total liabilities and stockholders’ equity (deficit)	646,396	231,111
Class A Common Stock
Stockholders’ equity (deficit)
Common stock	38	34
Class B Common Stock
Stockholders’ equity (deficit)
Common stock	$ 9	$ 10