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SUPPLEMENTAL CASH FLOW INFORMATION (Tables) | 12 Months Ended
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Sep. 30, 2017
Supplemental Cash Flow Information [Abstract] |
Changes in Working Capital Items as Presented in the Consolidated Statements of Cash Flows | Changes in working capital items as presented in the Consolidated Statements of Cash Flows consisted of the following:
| 2017 |  | 2016 |  | 2015
Current assets: |  |  |  |  |
Accounts receivable | $ | (7,045 | ) |  | $ | (10,632 | ) |  | $ | 7,566 |
Inventories | (2,289 | ) |  | 10,453 |  |  | 17,001 |
Other current assets | 4,447 |  |  | 12,434 |  |  | (14,567 | )
| (4,887 | ) |  | 12,255 |  |  | 10,000 |
Current liabilities: |  |  |  |  |  |  |  |
Trade accounts payable | 5,672 |  |  | (11,083 | ) |  | (9,103 | )
Accrued compensation | (2,469 | ) |  | 147 |  |  | (183 | )
Accrued income taxes | 5,054 |  |  | 4,079 |  |  | 3,389 |
Other current liabilities | 2,414 |  |  | 8,317 |  |  | (6,854 | )
| 10,671 |  |  | 1,460 |  |  | (12,751 | )
Net change | $ | 5,784 |  |  | $ | 13,715 |  |  | $ | (2,751 | )

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