Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Apr. 30, 2024
Operating Leased Assets [Line Items]
Outstanding amounts under finance lease obligations	$ 6,080
Current maturities	(2,659)
Long-term lease liability	3,421
Lease right-of-use assets	$ 12,107
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total long-term debt
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	$ 6,100	$ 5,600