Leases (Lease-Related Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Leases [Abstract] | ||
| Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases | $ 4,812 | $ 4,456 |
| Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for finance leases | 91 | 125 |
| Cash paid for amounts included in the measurement of lease liabilities: Financing cash flows for finance leases | 772 | 720 |
| Right-of-use assets obtained in exchange for recorded lease obligations: Operating leases | 2,608 | 4,902 |
| Right-of-use assets obtained in exchange for recorded lease obligations: Finance leases | $ 43 | $ 1,171 |