PROPERTY, PLANT AND EQUIPMENT - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands |
Dec. 31, 2023 |
Sep. 30, 2023 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property plant and equipment gross | $ 636,332 | $ 651,635 |
| Accumulated depreciation | (367,203) | (372,417) |
| Total | 269,129 | 279,218 |
| Land, building and building improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property plant and equipment gross | 145,321 | 169,923 |
| Machinery and equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Property plant and equipment gross | 456,968 | 447,972 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property plant and equipment gross | $ 34,043 | $ 33,740 |