Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Revenue:
Total revenue	$ 182,859	$ 125,223
Cost of revenue:
Total cost of revenue	48,486	35,095
Gross profit	134,373	90,128
Operating expenses:
Research and development	48,494	34,032
Sales and marketing	104,043	82,112
General and administrative	34,035	25,766
Total operating expenses	186,572	141,910
Operating loss	(52,199)	(51,782)
Interest expense	(10,764)	(4,241)
Interest income and other, net	4,899	2,900
Interest and other, net	(5,865)	(1,341)
Loss before benefit from income taxes	(58,064)	(53,123)
Benefit from income taxes	(402)	(1,157)
Net loss	$ (57,662)	$ (51,966)
Net loss per share, basic and diluted (in dollars per share)	$ (0.47)	$ (0.46)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	123,494	112,682
Subscription
Revenue:
Total revenue	$ 173,781	$ 117,163
Cost of revenue:
Total cost of revenue	37,157	24,540
Professional services and other
Revenue:
Total revenue	9,078	8,060
Cost of revenue:
Total cost of revenue	$ 11,329	$ 10,555