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Detail of Selected Balance Sheet Accounts - Components of Inventories (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Sep. 30, 2023
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Raw materials, parts and sub-assemblies | $ 87,564 | $ 68,631
Work-in-progress | 1,204 | 1,379
Provision for excess and obsolete inventories | (6,693) | (6,145)
Total inventories | $ 82,075 | $ 63,865

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