Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
Assets and Liabilities, Lessee [Abstract]
Operating lease other non-current asset	$ 14,179	$ 15,299
Total lease assets	14,179	15,299
Operating lease other current liabilities	3,346	3,196
Operating lease other non-current liability	15,519	16,978
Total lease liabilities	$ 18,865	$ 20,174