Additional Balance Sheet Information (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Jul. 31, 2024
Inventory Disclosure [Abstract]
Finished products	$ 104,559	$ 89,430
Work-in-process	29,332	24,601
Raw materials and supplies	56,100	38,698
Total inventories	189,991	152,729
Property, Plant and Equipment, Gross [Abstract]
Accumulated Depreciation of PPE	$ (309,349)	$ (304,199)

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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