Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flow, Operating Activities, Lessee [Abstract]
Operating cash flows from operating leases	$ 1,659	$ 1,432
Operating cash flows from finance leases	3	16
Financing cash flows from finance leases	$ 190	$ 304