Property, Plant and Equipment - Schedule (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Right-of-use Asset	$ 4,718	$ 2,476
Property, plant and equipment, at cost	320,620	238,516
Less: accumulated depreciation and amortization	(114,876)	(84,046)
Property, plant and equipment, net	205,744	154,470
Buildings, land, and land use right
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	41,870	29,581
Computer Equipment and Capitalized Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	38,623	35,814
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	139,858	90,700
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,426	5,806
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	52,670	37,495
Capital projects in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	33,915	$ 36,644
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,540