Revenue - Disaggregated Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 98,782	$ 78,401	$ 280,333	$ 223,992
Software Licenses
Disaggregation of Revenue [Line Items]
Total revenue	28,600	8,400	60,400	15,400
North America
Disaggregation of Revenue [Line Items]
Total revenue	$ 87,289	$ 68,356	$ 248,838	$ 191,247
United States | Revenue | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Geographic concentration risk, percentage	86.00%	86.00%	87.00%	85.00%
Europe, the Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenue	$ 11,085	$ 9,040	$ 29,978	$ 29,205
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenue	13	952	274	2,877
Rest of World
Disaggregation of Revenue [Line Items]
Total revenue	$ 395	$ 53	$ 1,243	$ 663