Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Apr. 30, 2023	Apr. 30, 2022
Operating leases
Right-of-use assets	$ 17,572	$ 29,010
Lease liabilities, current	2,339	3,613
Lease liabilities, non-current	37,320	26,851
Total operating lease liabilities	$ 39,659	$ 30,464
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets, non-current	Other assets, non-current
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued and other current liabilities	Accrued and other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other long-term liabilities	Other long-term liabilities