Property, Plant, and Equipment, net

12 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment, net

Property, Plant, and Equipment, net

The components of property, plant, and equipment, net consisted of the following:

	As of
(in thousands)	September 30, 2019			September 30, 2018
Land	$	3,484		$	—
Building and improvements	9,405			—
Equipment	42,308			36,625
Furniture and fixtures	1,109			1,109
Computer hardware and software	3,554			2,928
Leasehold improvements	2,676			2,049
Construction in progress	9,330			3,648
Property, plant, and equipment, gross	$	71,866		$	46,359
Accumulated depreciation	(34,643		)	(28,143		)
Property, plant, and equipment, net	$	37,223		$	18,216

Depreciation expense totaled $7.1 million, $5.6 million and $3.7 million during the fiscal years ended September 30, 2019, 2018 and 2017, respectively.