Property, Plant, and Equipment, net (Tables)

12 Months Ended

Sep. 30, 2020

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Description	Estimated Useful Life
Building	twenty years
Equipment	three to ten years
Furniture and fixtures	five years
Computer hardware and software	five to seven years
Leasehold improvements	three to six years

	As of September 30,
(in thousands)	2020		2019
Land	$	—	$	3,484
Building		—		9,405
Equipment		35,218		42,308
Furniture and fixtures		1,125		1,109
Computer hardware and software		3,473		3,554
Leasehold improvements		3,169		2,676
Construction in progress		10,301		9,330
Property, plant, and equipment, gross	$	53,286	$	71,866
Accumulated depreciation		(32,234)		(34,643)
Property, plant, and equipment, net	$	21,052	$	37,223