CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018
Current assets:
Cash and cash equivalents	$ 139,490	$ 61,902
Short-term investments	382,681	217,072
Accounts receivable, net of allowance for doubtful accounts of $1,434 and $1,238 as of October 31, 2018 and January 31, 2018, respectively	37,497	46,872
Deferred commissions	19,143	11,820
Prepaid expenses and other current assets	8,653	5,884
Total current assets	587,464	343,550
Property and equipment, net	73,191	59,557
Goodwill	1,700	1,700
Acquired intangible assets, net	965	1,627
Deferred tax assets	701	326
Other assets	6,649	8,436
Total assets	670,670	415,196
Current liabilities:
Accounts payable	1,942	2,261
Accrued compensation and benefits	21,615	17,433
Other accrued liabilities	12,169	8,423
Deferred revenue	136,609	114,500
Total current liabilities	172,335	142,617
Deferred rent, non-current	2,183	925
Deferred tax liability, non-current	42	18
Deferred revenue, non-current	17,229	22,930
Convertible senior notes, net	213,692	0
Other liabilities, non-current	67,944	55,213
Total liabilities	473,425	221,703
Commitments and contingencies (Note 5)
Stockholders’ equity:
Additional paid-in capital	734,381	638,680
Treasury stock, 99,371 shares (repurchased at an average of $13.27 per share) as of October 31, 2018 and January 31, 2018	(1,319)	(1,319)
Accumulated other comprehensive loss	(380)	(159)
Accumulated deficit	(535,490)	(443,760)
Total stockholders’ equity	197,245	193,493
Total liabilities and stockholders’ equity	670,670	415,196
Class A Common Stock
Stockholders’ equity:
Common stock	35	13
Class B Common Stock
Stockholders’ equity:
Common stock	$ 18	$ 38