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Consolidated Statements Of Income And Comprehensive Income (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2019
Income Statement [Abstract] |  |  |
Tax benefits from discontinued operations | $ 3,883 | $ 4,085 | $ 6,788

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- References No definition available. + Details
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