Property, Plant and Equipment - Net (Tables)

12 Months Ended

Sep. 30, 2022

Property Plant And Equipment [Abstract]

Summary of Property, Plant and Equipment - Net

Property, plant and equipment — net consisted of the following (in thousands):

	As of September 30,
	2022			2021
Land and improvements	$	3,350		$	2,812
Buildings and improvements		110,300			73,227
Manufacturing equipment		540,536			405,611
Computer equipment		28,198			23,915
Furnitures and fixtures		6,867			6,018
Vehicles		941			604
Total property, plant and equipment		690,192			512,187
Construction in progress		140,566			129,886
		830,758			642,073
Accumulated depreciation		(312,845	)		(251,061	)
Total property, plant and equipment – net	$	517,913		$	391,012