Other Charges - Additional Information (Details) - Cost savings initiative plan - USD ($)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0
Restructuring reserve	2,000,000	2,200,000
Other
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 2,000,000	2,000,000
Store closure costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 200,000
Restructuring reserve		$ 200,000