Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use assets	$ 15,299	$ 15,684
Total lease assets	15,299	15,684
Current portion of operating lease liabilities	3,196	2,633
Operating lease liabilities	16,978	18,368
Total lease liabilities	$ 20,174	$ 21,001