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DISCONTINUED OPERATIONS - Income Statement Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Income (loss) from discontinued operations | $ (8,335) | $ 92,423 | $ (2,871)
Plastics [Member] | Discontinued Operations, Held-for-sale [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Revenue | 0 | 166,262 | 460,914
Cost of goods and services | 0 | 132,100 | 389,416
Gross profit | 0 | 34,162 | 71,498
Selling, general and administrative expenses | 9,500 | 26,303 | 43,518
Restructuring charges | 0 | 0 | 0
Total operating expenses | 9,500 | 26,303 | 43,518
Income from discontinued operations | (9,500) | 7,859 | 27,980
Gain on sale of business | 0 | 112,964 | 0
Interest expense, net | 0 | (155) | (63)
Disposal Group, Including Discontinued Operation, Other Income (Expense) | 0 | (687) | 59
Total other income (expense) | 0 | 112,122 | (4)
Income (loss) from discontinued operations | $ (9,500) | $ 119,981 | $ 27,976

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