Detail of Selected Balance Sheet Accounts - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	$ 246,297	$ 243,312
Less: Accumulated depreciation	(147,979)	(145,687)
Total property, plant and equipment, net	98,318	97,625
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	21,729	21,526
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	122,706	121,454
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	93,636	92,477
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	3,792	3,726
Construction in process
Property, Plant and Equipment [Line Items]
Property, plant and equipment gross	$ 4,434	$ 4,129