Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period	6 years 7 months 6 days
Amortization expense related to intangible assets	$ 3,100	$ 100	$ 200
Customer Relationship
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period	2 years 4 months 24 days
Total impairment charge	$ (119)
Trade Name
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period	1 year 10 months 24 days
Materials and Substrate
Finite-Lived Intangible Assets [Line Items]
Total impairment charge	$ 5,200