Business, Basis of Presentation and Summary of Significant Accounting Policies - Insurance Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Apr. 30, 2024
Other accrued expenses and current liabilities.
Loss Contingencies [Line Items]
Medical self-insurance	$ 5,769	$ 6,067
General liability, workers' compensation and automobile | Other accrued expenses and current liabilities.
Loss Contingencies [Line Items]
General liability, automobile and workers’ compensation	34,166	22,731
General liability, workers' compensation and automobile | Prepaid expenses and other current assets
Loss Contingencies [Line Items]
Expected recoveries for insurance liabilities	$ (7,357)	$ (3,746)