Defined Benefit Pension Plans - Pension Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 31, 2024	Jan. 31, 2024
Retirement Benefits [Abstract]
Service cost	$ 0	$ 0
Interest cost	223	670
Expected return on plan assets	(328)	(984)
Recognition of net loss	146	436
Net periodic pension expense	$ 41	$ 122

No definition available.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from settlement and curtailment.

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

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