Leases - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Lessee, Lease, Description [Line Items]
Operating lease right of use asset non cash	$ 28.1	$ 6.6
Operating lease liability non cash	$ 28.1	$ 6.6
Minimum
Lessee, Lease, Description [Line Items]
Initial term of lease (in years)	3 years
Maximum
Lessee, Lease, Description [Line Items]
Initial term of lease (in years)	10 years