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Assets Held for Sale and Discontinued Operations - Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Assets |  |
Total current assets | $ 22,965 | $ 45,322
Total current liabilities | 18,484 | 31,798
Tempress | Discontinued Operations, Held-for-sale |  |
Assets |  |
Total current assets | 17,468 | 39,379
Property, plant and equipment - net | 5,497 | 5,943
Total assets included in the disposal group | 22,965 | 45,322
Total current liabilities | 18,191 | 29,380
Long-term debt | 293 | 2,418
Total liabilities included in the disposal group | 18,484 | 31,798
Net assets included in the disposal group | $ 4,481 | $ 13,524

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