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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Current assets: |  |  |
Accounts receivable | $ 5,621 | $ 26,457 | $ 74,013
Inventories | 27,019 | (23,990) | (23,459)
Contract assets | (15,304) | (23,465) | (19,509)
Other current assets | 8,483 | (3,259) | 3,739
Total change in current assets | 25,819 | (24,257) | 34,784
Current liabilities: |  |  |
Trade accounts payable | (6,492) | (9,215) | 7,437
Accrued compensation | 27,597 | (648) | (10,760)
Accrued income taxes | (4,834) | 3,343 | 5,745
Accrued rebates | 144 | 296 | 1,265
Contract liabilities | (9,426) | 4,971 | 12,238
Other current liabilities | (18,112) | (9,993) | (21,119)
Total change in current liabilities | (11,123) | (11,246) | (5,194)
Net change | $ 14,696 | $ (35,503) | $ 29,590

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