CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019
Current assets:
Cash and cash equivalents	$ 706,192	$ 147,831
Short-term investments	280,326	318,139
Accounts receivable, net of allowance for doubtful accounts of $2,515 and $1,539 as of January 31, 2020 and 2019, respectively	85,554	72,808
Deferred commissions	24,219	15,878
Prepaid expenses and other current assets	16,905	11,580
Total current assets	1,113,196	566,236
Property and equipment, net	58,316	73,664
Operating lease right-of-use assets	11,147	0
Goodwill	55,830	41,878
Acquired intangible assets, net	34,779	15,894
Deferred tax assets	615	1,193
Other assets	54,684	34,611
Total assets	1,328,567	733,476
Current liabilities:
Accounts payable	2,849	2,153
Accrued compensation and benefits	41,427	25,982
Operating lease liabilities	3,750	0
Other accrued liabilities	26,860	14,169
Deferred revenue	167,498	122,333
Total current liabilities	242,384	164,637
Deferred rent, non-current	0	2,567
Deferred tax liability, non-current	821	106
Operating lease liabilities, non-current	8,113	0
Deferred revenue, non-current	23,281	15,343
Convertible senior notes, net	911,075	216,858
Other liabilities, non-current	60,035	69,399
Total liabilities	1,245,709	468,910
Commitments and contingencies (Note 9)
Stockholders’ equity:
Additional paid-in capital	752,127	754,612
Treasury stock, 99,371 shares (repurchased at an average of $13.27 per share) as of January 31, 2020 and 2019	(1,319)	(1,319)
Accumulated other comprehensive income (loss)	225	(174)
Accumulated deficit	(668,232)	(488,607)
Total stockholders’ equity	82,858	264,566
Total liabilities and stockholders’ equity	1,328,567	733,476
Class A Common Stock
Stockholders’ equity:
Common stock	48	36
Class B Common Stock
Stockholders’ equity:
Common stock	$ 9	$ 18