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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Apr. 30, 2021	Jan. 31, 2021	Oct. 31, 2020	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 100,932	$ 99,529	$ 98,124	$ 91,992	$ 92,194	$ 89,061	$ 88,055	$ 85,351	$ 390,577	$ 354,661	$ 298,829
North America
Disaggregation of Revenue [Line Items]
Revenue									309,938	284,792	245,629
International
Disaggregation of Revenue [Line Items]
Revenue									$ 80,639	$ 69,869	$ 53,200

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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