Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cash Flow, Operating Activities, Lessee [Abstract]
Operating cash flows from operating leases	$ 2,116	$ 1,562	$ 5,715	$ 4,531
Operating cash flows from finance leases		8	4	35
Financing cash flows from finance leases	$ 43	$ 269	$ 360	$ 880