EARNINGS (LOSS) PER COMMON SHARE - Schedule of Anti-Dilutive Shares Excluded from the Calculation of Diluted Earnings Per Share (Details) - $ / shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Earnings Per Share [Abstract] | ||||
| Potentially dilutive shares excluded as anti-dilutive (in shares) | 1,361 | 3,548 | 1,529 | 2,852 |
| Weighted-average price per share (in dollars per share) | $ 55.10 | $ 48.32 | $ 55.13 | $ 52.02 |