Property, Plant, and Equipment, net - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 73,968	$ 58,595
Accumulated depreciation	(36,101)	(36,051)
Property, plant, and equipment, net	37,867	22,544
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	995	0
Building
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	8,805	0
Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	42,330	37,985
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	1,394	1,125
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	3,378	3,575
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	7,180	6,663
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 9,886	$ 9,247