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SUPPLEMENTAL CASH FLOW INFORMATION (Tables) | 12 Months Ended
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Sep. 30, 2021
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:
| 2021 |  | 2020 |  | 2019
Current assets: |  |  |  |  |
Accounts receivable | $ | (13,423) |  |  | $ | 24,055 |  |  | $ | 8,779 |
Inventories | (12,839) |  |  | 5,976 |  |  | 830 |
Other current assets | (15,618) |  |  | (14,803) |  |  | 10,317 |
| (41,880) |  |  | 15,228 |  |  | 19,926 |
Current liabilities: |  |  |  |  |
Trade accounts payable | 29,621 |  |  | 8,363 |  |  | 3,715 |
Accrued compensation | 10,791 |  |  | 15,512 |  |  | (8,832) |
Accrued income taxes | 601 |  |  | (2,384) |  |  | (5,416) |
Other current liabilities | 13,849 |  |  | 9,648 |  |  | (21,875) |
| 54,862 |  |  | 31,139 |  |  | (32,408) |
Net change | $ | 12,982 |  |  | $ | 46,367 |  |  | $ | (12,482) |

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