Selected Account Information - Schedule of Non-Operating Gains (Losses) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Selected Account Information [Abstract] | ||||
| Premium on stock repurchase | $ 0 | $ 0 | $ (9,885) | $ 0 |
| Gain on lease termination | 0 | 0 | 0 | 979 |
| Other | 31 | (5) | 35 | (5) |
| Non-operating gains (losses), net | $ 31 | $ (5) | $ (9,850) | $ 974 |