INVENTORIES, NET

12 Months Ended

Sep. 30, 2025

Inventory Disclosure [Abstract]

INVENTORIES, NET

11. INVENTORIES, NET

A majority of the Company records inventory at the lower of cost (primarily last in, first out, or “LIFO”) or market or net realizable value, as applicable. Approximately 81% and 81% of the Company's inventories are valued at the lower of LIFO cost or market at September 30, 2025 and September 30, 2024, respectively.

(in thousands)	September 30, 2025		September 30, 2024
Purchased materials and manufactured parts, net	$	134,869	$	153,290
Work in process, net	74,159		74,158
Finished goods, net	275,817		297,247
Inventories, net	$	484,845	$	524,695

Total inventories would be $8,995 higher and $14,425 lower than reported as of September 30, 2025 and September 30, 2024, respectively, if the first-in, first-out method was used for all inventories. During the years ended September 30, 2025 and September 30, 2024, inventory quantities in specific pools were

lower at the end of the period than the quantities at the beginning of the period. This reduction resulted in a liquidation of LIFO inventory quantities carried at net lower costs prevailing in the respective prior years as compared with the cost of respective current year purchases. The effect of this inventory reduction resulted in decreased cost of goods sold and increased operating income of approximately $2,757 and $370.

As of September 30, 2025 and September 30, 2024, the excess and obsolete inventory reserve was $23,192 and $29,176, respectively.