Property and Equipment (Tables)

12 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Summary of Property and Equipment

The following table summarizes the Company’s major classes of property and equipment:

	September 30,
	2023		2022
	(in thousands)
Computers, software, office equipment and furniture	$	2,240	$	2,182
Land	2,996		2,996
Research equipment	56,509		38,283
Leasehold improvements	103,813		42,017
Construction in progress	166,655		56,373
	332,213		141,851
Less: Accumulated depreciation and amortization	(41,951)		(31,554)
Property and equipment, net	$	290,262	$	110,297