Revenue - Disaggregated Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 75,147	$ 94,338	$ 145,408	$ 181,551
Software Licenses
Disaggregation of Revenue [Line Items]
Total revenue	21,900	19,200	39,800	31,800
North America
Disaggregation of Revenue [Line Items]
Total revenue	$ 71,813	$ 84,343	$ 136,221	$ 161,471
United States | Revenue | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Geographic concentration risk, percentage	95.00%	87.00%	93.00%	87.00%
Europe, the Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenue	$ 2,951	$ 9,581	$ 8,570	$ 18,971
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenue	0	14	21	261
Rest of World
Disaggregation of Revenue [Line Items]
Total revenue	$ 383	$ 400	$ 596	$ 848