Detail of Selected Balance Sheet Accounts - Components of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials, parts and sub-assemblies	$ 74,181	$ 68,631
Work-in-progress	2,056	1,379
Provision for excess and obsolete inventories	(6,555)	(6,145)
Total inventories	$ 69,682	$ 63,865

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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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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