Leases - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2025	Sep. 30, 2024
Lessee Lease Description [Line Items]
Operating lease, existence of option to extend	true
Operating lease, optional lease extension periods for multiple leases, description	Operating lease payments include $2.3 million related to options to extend lease terms that are reasonably certain of being exercised.
Payments related to optional lease extension periods for multiple leases	$ 2,300
Operating lease ROU asset	15,436	$ 16,596
Operating lease liability	$ 16,284