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Customer Receivables (Components Of Customer Receivables ) (Details) - USD ($) $ in Thousands | Jul. 31, 2022 | Apr. 30, 2022
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Accounts Receivable, after Allowance for Credit Loss [Abstract] |  |
Gross customer receivables | $ 175,376 | $ 168,699
Less: |  |
Allowance for doubtful accounts | (234) | (226)
Allowance for returns and discounts | (12,695) | (11,512)
Net customer receivables | $ 162,447 | $ 156,961

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