Detail of Selected Balance Sheet Accounts (Tables)

9 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Components of Inventories

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

	June 30, 2024		September 30, 2023
Raw materials, parts and sub-assemblies	$	90,839	$	68,631
Work-in-progress	1,362		1,379
Provision for excess and obsolete inventories	(7,062)		(6,145)
Total inventories	$	85,139	$	63,865

Schedule of Property, Plant and Equipment

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

	June 30, 2024		September 30, 2023
Land	$	21,563	$	21,526
Buildings and improvements	123,687		121,454
Machinery and equipment	95,064		92,477
Furniture and fixtures	3,795		3,726
Construction in process	2,427		4,129
	$	246,536	$	243,312
Less: Accumulated depreciation	(150,068)		(145,687)
Total property, plant and equipment, net	$	96,468	$	97,625

Schedule of Activity in Product Warranty Accrual

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

	Three months ended June 30,				Nine months ended June 30,
	2024		2023		2024		2023
Balance at beginning of period	$	4,568	$	2,711	$	3,305	$	2,345
Increase to warranty expense	2,077		1,241		5,071		2,931
Deduction for warranty charges	(1,412)		(760)		(3,154)		(2,095)
Change due to foreign currency translation	(7)		10		4		21
Balance at end of period	$	5,226	$	3,202	$	5,226	$	3,202