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Financial Instruments - Fair Value of Derivatives Not Designated as Hedge Instruments (Detail) - Not Designated as Hedge Instrument - Foreign currency forward contracts - USD ($) $ in Thousands | Jul. 31, 2024 | Apr. 30, 2024
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Derivative assets: |  |
Fair value of derivative assets | $ 745 | $ 979
Derivative liabilities: |  |
Fair value of derivative liabilities | $ 337 | $ 1,406

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