COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands |
9 Months Ended | |
|---|---|---|
|
Jun. 30, 2024
USD ($)
renewalOption
|
Sep. 30, 2023
USD ($)
|
|
| Other Commitments [Line Items] | ||
| Operating lease right-of-use assets | $ 57,315 | $ 50,400 |
| Leases renewed | renewalOption | 1 | |
| Purchase commitments for equipment, parts and supplies | $ 99,600 | |
| Tulsa Industrial Facility | ||
| Other Commitments [Line Items] | ||
| Number of renewal options | renewalOption | 2 | |
| Renewal option term | 5 years | |
| Land and Building | ||
| Other Commitments [Line Items] | ||
| Operating lease, liability | $ 18,100 | |
| Operating lease right-of-use assets | $ 18,100 |