Revenue - Disaggregated Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2022	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 65,308	$ 52,406
North America
Disaggregation of Revenue [Line Items]
Total revenue	$ 51,938	$ 36,452
United States \| Revenue \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Geographic concentration risk, percentage	79.00%	69.00%
Europe, the Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenue	$ 10,703	$ 12,219
France \| Revenue \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Geographic concentration risk, percentage		13.00%
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenue	2,367	$ 3,735
Rest of World
Disaggregation of Revenue [Line Items]
Total revenue	$ 300	$ 0

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	credit
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