Customer Receivables (Components Of Customer Receivables) (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Apr. 30, 2020
Receivables [Abstract]
Gross customer receivables	$ 156,187	$ 112,528
Allowance for doubtful accounts	(331)	(472)
Allowance for returns and discounts	(8,990)	(5,712)
Net customer receivables	146,866	106,344
Inventories	140,282	111,836
Carried under FIFO	80,300	66,000
Carried under LIFO	$ 60,000	$ 45,800

Allowance for returns and discounts

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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