Leases (Lease-Related Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases	$ 3,879	$ 4,136
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for finance leases	117	30
Cash paid for amounts included in the measurement of lease liabilities: Financing cash flows for finance leases	535	690
Right-of-use assets obtained in exchange for recorded lease obligations: Operating leases	1,841	9,997
Right-of-use assets obtained in exchange for recorded lease obligations: Finance leases	$ 48	$ 1,260