Leases - Additional Information (Details)	Jun. 30, 2022	Sep. 30, 2021
Leases [Abstract]
Weighted average remaining lease term, operating leases	11 years 7 months 17 days	11 years 3 months 29 days
Weighted average remaining lease term, finance leases		6 months 10 days
Weighted average discount rate, operating leases (as a percent)	4.02%	3.90%
Weighted average discount rate, finance leases (as a percent)	0.00%	4.87%