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Accumulated Other Comprehensive Loss - Reclassification out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pension expense	$ 1,582	$ (409)	$ 3,175	$ (903)
Reclassification out of Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pension expense	$ 2,000	$ 1,400	$ 3,900	$ 2,900

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- Definition

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

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-Topic 715
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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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