Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Revenue:
Total revenue	$ 112,691	$ 93,619
Cost of revenue:
Total cost of revenue	39,563	32,595
Gross profit	73,128	61,024
Operating expenses:
Research and development	32,379	19,616
Sales and marketing	52,015	33,615
General and administrative	21,498	9,838
Total operating expenses	105,892	63,069
Loss from operations	(32,764)	(2,045)
Interest income and other income (expense), net	175	142
Loss before provision for income taxes	(32,589)	(1,903)
(Benefit from) provision for income taxes	(60)	656
Net loss	$ (32,529)	$ (2,559)
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share)	$ (0.24)	$ (0.08)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (in shares)	135,993	30,430
Subscription
Revenue:
Total revenue	$ 88,992	$ 71,712
Cost of revenue:
Total cost of revenue	17,344	13,461
Professional services
Revenue:
Total revenue	23,699	21,907
Cost of revenue:
Total cost of revenue	$ 22,219	$ 19,134