CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Revenues:
Total revenues	$ 166,929	$ 119,214
Cost of revenues:
Total cost of revenues	79,727	42,838
Gross profit	87,202	76,376
Operating expenses:
Research and development	43,837	26,719
Sales and marketing	77,843	46,139
General and administrative	39,377	9,144
Total operating expenses	161,057	82,002
Loss from operations	(73,855)	(5,626)
Interest expense	(29,103)	(12,289)
Interest income and other, net	535	3,328
Loss before provision for (benefit from) income taxes	(102,423)	(14,587)
Provision for (benefit from) income taxes	(2,066)	229
Net loss	$ (100,357)	$ (14,816)
Net loss per share, basic and diluted (in dollars per share)	$ (1.38)	$ (0.23)
Weighted-average number of shares used in computing net loss per share , basic and diluted (in shares)	72,865	65,468
Subscription
Revenues:
Total revenues	$ 140,104	$ 105,735
Cost of revenues:
Total cost of revenues	51,025	29,002
Professional services and other
Revenues:
Total revenues	26,825	13,479
Cost of revenues:
Total cost of revenues	$ 28,702	$ 13,836