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Detail of Selected Balance Sheet Accounts (Tables)

12 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Components of Inventories

The components of inventories are summarized below (in thousands): 

			September 30,
			2025						2024
Raw materials, parts and sub-assemblies			$	90,743					$	92,314
Work-in-progress			2,222						920
Provision for excess and obsolete inventories			(8,246)						(7,361)
Total inventories			$	84,719					$	85,873

Schedule of Property, Plant and Equipment

Property, plant and equipment are summarized below (in thousands): 

			September 30,												Range of
			2025						2024						Asset Lives
Land			$	24,436					$	24,110					—
Buildings and improvements			133,455						127,094						3 – 39 Years
Machinery and equipment			99,840						94,889						3 – 15 Years
Furniture and fixtures			3,056						2,885						3 – 10 Years
Construction in process			2,110						3,317						—
			$	262,897					$	252,295
Less: Accumulated depreciation			(151,848)						(148,874)
Total property, plant and equipment, net			$	111,049					$	103,421

Schedule of Activity in Product Warranty Accrual

Activity in our product warranty accrual consisted of the following (in thousands): 

			September 30,
			2025						2024
Balance at beginning of period			$	5,822					$	3,305
Increase to warranty expense			5,714						7,525
Deduction for warranty charges			(5,169)						(5,039)
Change due to foreign currency translation			(11)						31
Balance at end of period			$	6,356					$	5,822

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
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Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

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-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)
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