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Deferred Compensation and Retirement Plans - Total Long-Term Benefit Obligations (Detail) - USD ($) $ in Thousands | Apr. 30, 2024 | Apr. 30, 2023
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Total liability | $ 483,773 | $ 423,753
Less: current portion of benefit obligation | (43,377) | (27,219)
Non-current benefit obligation | 440,396 | 396,534
Deferred compensation and pension plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total liability | 262,403 | 227,255
Medical and Life Insurance plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total liability | 4,227 | 4,838
International retirement plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total liability | 12,606 | 13,617
Executive Capital Accumulation Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total liability | $ 204,537 | $ 178,043

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