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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 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
Total change in current assets | (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)
Total change in current liabilities | 54,862 | 31,139 | (32,408)
Net change | $ 12,982 | $ 46,367 | $ (12,482)

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