GOODWILL AND INTANGIBLE ASSETS - Intangible Assets Arising from Business Acquisitions (Details) - USD ($) $ in Thousands |
Jun. 30, 2024 |
Sep. 30, 2023 |
|---|---|---|
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 96,961 | $ 96,961 |
| Accumulated Amortization | 41,209 | 36,386 |
| Net | $ 55,752 | 60,575 |
| Developed technology | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted Average Estimated Useful Lives | 15 years | |
| Gross Carrying Amount | $ 89,096 | 89,096 |
| Accumulated Amortization | 38,558 | 34,092 |
| Net | $ 50,538 | 55,004 |
| Intellectual property | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted Average Estimated Useful Lives | 13 years | |
| Gross Carrying Amount | $ 2,000 | 2,000 |
| Accumulated Amortization | 622 | 503 |
| Net | $ 1,378 | 1,497 |
| Trade name | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Weighted Average Estimated Useful Lives | 20 years | |
| Gross Carrying Amount | $ 5,865 | 5,865 |
| Accumulated Amortization | 2,029 | 1,791 |
| Net | $ 3,836 | $ 4,074 |