Deferred Compensation and Retirement Plans - Changes in ECAP Liability (Detail) - Executive Capital Accumulation Plan - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance, beginning of year	$ 178,043	$ 166,723
Employee contributions	11,844	17,046
Amortization of employer contributions	7,017	5,886
Gain on investment	29,492	3,464	$ (10,600)
Employee distributions	(21,668)	(14,306)
Exchange rate fluctuations	(191)	(770)
Balance, end of year	204,537	178,043	$ 166,723
Less: current portion	(16,749)	(11,209)
Non-current portion	$ 187,788	$ 166,834

Deferred Compensation Amortization Of Employer Contribution

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The compensation expense or income recognized during the period pertaining to the deferred compensation arrangement.

+ References

No definition available.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as current. Excludes other postretirement benefit plan.

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

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- Definition

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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