Revenue and Deferred Revenue - Summary of Revenue Disaggregated by Revenue Source (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 52,653	$ 47,057	$ 102,990	$ 92,629
Subscription and services revenue
Disaggregation Of Revenue [Line Items]
Total revenue	47,995	43,537	94,718	85,502
Product and other revenue
Disaggregation Of Revenue [Line Items]
Total revenue	$ 4,658	$ 3,520	$ 8,272	$ 7,127