Leases - Summary of Lease Term and Incremental Borrowing Rates for Leases (Details)	Dec. 31, 2024	Sep. 30, 2024
Weighted-average remaining lease term (in months):
Operating leases	47 months 27 days	46 months
Finance leases	10 months 6 days	13 months 12 days
Weighted-average discount rate:
Operating leases	6.80%	6.60%
Finance leases	4.40%	4.40%