Revenue Information - Schedule of Revenue by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Segment revenue	$ 97,716	$ 45,318
United States and Canada
Segment Reporting Information [Line Items]
Segment revenue	75,143	42,177
Asia
Segment Reporting Information [Line Items]
Segment revenue	8,714	710
Europe
Segment Reporting Information [Line Items]
Segment revenue	10,444	1,242
Other
Segment Reporting Information [Line Items]
Segment revenue	$ 3,415	$ 1,189