Leases (Property, Plant and Equipment Leased to Others through Embedded Leasing Arrangements) (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Leases [Abstract] | ||
| Property, plant, and equipment | $ 41,368 | $ 41,593 |
| Less accumulated depreciation | (31,961) | (29,110) |
| Property, plant, and equipment, net | $ 9,407 | $ 12,483 |