CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Apr. 30, 2019	Jan. 31, 2019
Current assets:
Cash and cash equivalents	$ 629,793	$ 63,624
Marketable securities	107,389	112,777
Accounts receivable, net of allowances of $2,502 and $2,071 as of April 30, 2019 and January 31, 2019, respectively	78,888	63,613
Deferred contract acquisition costs, current	30,339	26,453
Prepaid expenses and other current assets	19,931	10,252
Total current assets	866,340	276,719
Deferred contract acquisition costs, non-current	32,192	29,063
Property and equipment, net	41,724	37,275
Operating lease right-of-use assets	48,957
Other assets, non-current	9,839	11,508
Total assets	999,052	354,565
Current liabilities:
Accounts payable	9,678	4,963
Accrued expenses and other current liabilities	47,410	32,256
Deferred revenue, current	137,337	115,122
Total current liabilities	194,425	152,341
Deferred revenue, non-current	11,993	10,651
Operating lease liabilities, non-current	46,056
Other liabilities, non-current	26,850	39,460
Total liabilities	279,324	202,452
Commitments and contingencies (Note 7)
Stockholders’ equity (deficit):
Preferred stock, $0.001 par value per share, 200,000,000 and zero shares authorized as of April 30, 2019 and January 31, 2019, respectively; zero shares issued and outstanding as of April 30, 2019 and January 31, 2019
Additional paid-in capital	742,388	17,760
Accumulated other comprehensive income (loss)	8	(135)
Accumulated deficit	(22,939)	(25,153)
Total stockholders’ equity (deficit)	719,728	(7,439)
Total liabilities, convertible preferred stock, and stockholders’ equity (deficit)	999,052	354,565
Convertible Preferred Stock
Current liabilities:
Convertible preferred stock, $0.001 par value per share, zero and 158,104,540 shares authorized as of April 30, 2019 and January 31, 2019, respectively; zero and 152,665,804 shares issued and outstanding as of April 30, 2019 and January 31, 2019, respectively		159,552
Class A Common Stock
Stockholders’ equity (deficit):
Common stock value	$ 271	$ 89