CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jul. 31, 2021	Jan. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,931,370	$ 2,240,303
Marketable securities	3,174,029	2,004,410
Accounts receivable, net of allowances of $34,629 and $36,844 as of July 31, 2021 and January 31, 2021, respectively	395,266	294,703
Deferred contract acquisition costs, current	162,126	136,630
Prepaid expenses and other current assets	172,288	116,819
Total current assets	5,835,079	4,792,865
Deferred contract acquisition costs, noncurrent	154,971	157,262
Property and equipment, net	193,852	149,924
Operating lease right-of-use assets	91,087	97,649
Strategic investments	137,795	18,668
Goodwill	26,247	24,340
Other assets, noncurrent	69,562	57,285
Total assets	6,508,593	5,297,993
Current liabilities:
Accounts payable	49,762	8,664
Accrued expenses and other current liabilities	482,162	393,018
Deferred revenue, current	1,154,449	858,284
Total current liabilities	1,686,373	1,259,966
Deferred revenue, noncurrent	23,579	25,211
Operating lease liabilities, noncurrent	83,009	90,415
Other liabilities, noncurrent	57,884	61,634
Total liabilities	1,850,845	1,437,226
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.001 par value per share, 200,000,000 shares authorized as of July 31, 2021 and January 31, 2021; zero shares issued and outstanding as of July 31, 2021 and January 31, 2021	0	0
Common stock, $0.001 par value per share, 2,000,000,000 Class A shares authorized as of July 31, 2021 and January 31, 2021; 240,479,735 and 215,737,924 shares issued and outstanding as of July 31, 2021 and January 31, 2021, respectively; 300,000,000 Class B shares authorized as of July 31, 2021 and January 31, 2021; 56,547,588 and 77,811,299 shares issued and outstanding as of July 31, 2021 and January 31, 2021, respectively	296	292
Additional paid-in capital	3,440,222	3,187,168
Accumulated other comprehensive income	147	839
Retained earnings	1,217,083	672,468
Total stockholders’ equity	4,657,748	3,860,767
Total liabilities and stockholders’ equity	$ 6,508,593	$ 5,297,993