Pensions and Other Postretirement Benefits (Details Textual) - USD ($) $ in Millions	3 Months Ended
Jul. 31, 2025	Jul. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Benefits Paid	$ 0.7	$ 0.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details