Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Revenues [Abstract]
Total revenue	$ 308,645	$ 257,961	$ 210,180
Cost of Revenue [Abstract]
Total cost of revenue	73,078	67,146	56,748
Gross profit	235,567	190,815	153,432
Operating Expenses [Abstract]
Sales and marketing	173,300	143,722	117,335
Research and development	95,093	81,027	66,474
General and administrative	56,047	54,536	42,708
Total operating expenses	324,440	279,285	226,517
Loss from operations	(88,873)	(88,470)	(73,085)
Other expense, net	(15,499)	(14,102)	(11,140)
Loss before income taxes	(104,372)	(102,572)	(84,225)
Provision for (benefit from) income taxes	1,179	(461)	409
Net loss	$ (105,551)	$ (102,111)	$ (84,634)
Net loss per share, basic (in usd per share)	$ (3.10)	$ (3.19)	$ (2.89)
Net loss per share, diluted (in usd per share)	$ (3.10)	$ (3.19)	$ (2.89)
Weighted-average number of shares used in computing net loss per share, basic (shares)	34,092	32,021	29,308
Weighted-average number of shares used in computing net loss per share, diluted (shares)	34,092	32,021	29,308
Subscription
Revenues [Abstract]
Total revenue	$ 271,290	$ 223,010	$ 183,645
Cost of Revenue [Abstract]
Total cost of revenue	43,295	40,907	36,656
Professional services and other
Revenues [Abstract]
Total revenue	37,355	34,951	26,535
Cost of Revenue [Abstract]
Total cost of revenue	$ 29,783	$ 26,239	$ 20,092