Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Apr. 30, 2023
Operating Leased Assets [Line Items]
Outstanding amounts under finance lease obligations	$ 5,684
Current maturities	(2,292)
Long-term lease liability	3,392
Lease right-of-use assets	$ 11,676
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net
Debt
Operating Leased Assets [Line Items]
Outstanding amounts under finance lease obligations	$ 5,600	$ 3,700