CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Revenue:
Total revenue	$ 130,329	$ 89,388
Cost of revenue:
Total cost of revenue	37,677	28,172
Gross profit	92,652	61,216
Operating expenses:
Sales and marketing	69,125	46,120
Research and development	45,632	30,868
General and administrative	19,935	14,805
Total operating expenses	134,692	91,793
Loss from operations	(42,040)	(30,577)
Other income (expense):
Interest income	2,727	2,303
Interest expense	(13,795)	(4,689)
Other expense, net	(625)	(415)
Loss before provision for income taxes	(53,733)	(33,378)
Provision (benefit) for income taxes	234	(138)
Net loss	$ (53,967)	$ (33,240)
Net loss per share, basic and diluted (in dollars per share)	$ (0.94)	$ (0.61)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	57,649,524	54,710,746
Subscription
Revenue:
Total revenue	$ 124,856	$ 83,994
Cost of revenue:
Total cost of revenue	30,625	22,595
Services
Revenue:
Total revenue	5,473	5,394
Cost of revenue:
Total cost of revenue	$ 7,052	$ 5,577