v3.25.4

INVENTORIES, NET - Schedule of Company Inventories (Details) - USD ($) $ in Thousands	Dec. 26, 2025	Sep. 30, 2025
Inventory Disclosure [Abstract]
Purchased materials and manufactured parts, net	$ 107,188	$ 134,869
Work in process, net	65,239	74,159
Finished goods, net	296,907	275,817
Inventories, net	$ 469,334	$ 484,845

Inventory, Raw Materials And Purchased Parts, Net Of Valuation Reserves

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- Definition

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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- Definition

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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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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Atkore Inc. 10-Q