Geographic Information - Revenue by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Concentration Risk [Line Items]
Total revenue	$ 308,645	$ 257,961	$ 210,180
United States
Concentration Risk [Line Items]
Total revenue	$ 241,753	$ 198,040	$ 159,462
United States \| Revenue \| Geographic concentration
Concentration Risk [Line Items]
Concentration risk percentage	78.00%	77.00%	76.00%
Japan
Concentration Risk [Line Items]
Total revenue	$ 24,668	$ 25,046	$ 22,157
Japan \| Revenue \| Geographic concentration
Concentration Risk [Line Items]
Concentration risk percentage	8.00%	10.00%	11.00%
Other
Concentration Risk [Line Items]
Total revenue	$ 42,224	$ 34,875	$ 28,561
Other \| Revenue \| Geographic concentration
Concentration Risk [Line Items]
Concentration risk percentage	14.00%	13.00%	13.00%

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.

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+ Details