Segment and Revenue Information - Schedule of Revenue by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Segment revenue	$ 124,126	$ 158,444
United States and Canada
Segment Reporting Information [Line Items]
Segment revenue	106,533	139,443
Asia
Segment Reporting Information [Line Items]
Segment revenue	8,697	11,836
Europe
Segment Reporting Information [Line Items]
Segment revenue	6,489	4,802
Other
Segment Reporting Information [Line Items]
Segment revenue	$ 2,407	$ 2,363