Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Revenue:
Total revenue	$ 892,252	$ 607,643	$ 336,156
Cost of revenue:
Total cost of revenue	168,868	65,857	59,405
Gross profit	723,384	541,786	276,751
Operating expenses:
Sales and marketing	697,682	380,154	483,344
Research and development	276,657	109,920	131,066
General and administrative	249,991	162,035	179,624
Total operating expenses	1,224,330	652,109	794,034
Operating loss	(500,946)	(110,323)	(517,283)
Interest income	3,551	1,152	6,741
Other (expense) income, net	(13,488)	14,513	(6,597)
Loss before income taxes	(510,883)	(94,658)	(517,139)
Provision for (benefit from) income taxes	14,703	(2,265)	2,794
Net loss	$ (525,586)	$ (92,393)	$ (519,933)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (1.16)	$ (0.55)	$ (3.41)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (1.16)	$ (0.55)	$ (3.41)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	454,625	168,255	152,382
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	454,625	168,255	152,382
Licenses
Revenue:
Total revenue	$ 481,427	$ 346,035	$ 201,648
Cost of revenue:
Total cost of revenue	11,888	7,054	3,760
Subscription services
Revenue:
Total revenue	369,867	232,542	119,612
Cost of revenue:
Total cost of revenue	60,565	24,215	16,503
Professional services and other
Revenue:
Total revenue	40,958	29,066	14,896
Cost of revenue:
Total cost of revenue	$ 96,415	$ 34,588	$ 39,142