Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2023	Jul. 31, 2022
Cash Flow Hedging
Change In Pension Benefits And Derivative Hedging Activities [Line Items]
Other comprehensive income, deferred tax	$ 311	$ (433)

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details