SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Current assets:
Accounts receivable	$ 26,457	$ 74,013	$ (13,423)
Inventories	(23,990)	(23,459)	(12,839)
Other current assets	(26,724)	(15,770)	(15,618)
Total change in current assets	(24,257)	34,784	(41,880)
Current liabilities:
Trade accounts payable	(9,215)	7,437	29,621
Accrued compensation	(648)	(10,760)	10,791
Accrued income taxes	3,343	5,745	601
Other current liabilities	(4,726)	(7,616)	13,849
Total change in current liabilities	(11,246)	(5,194)	54,862
Net change	$ (35,503)	$ 29,590	$ 12,982

Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.

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The increase (decrease) during the period in accrued salaries.

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The increase (decrease) during the reporting period in the aggregate amount of assets used to generate operating income.

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The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

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The increase (decrease) during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income.

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Amount of increase (decrease) in current assets classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
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Amount of increase (decrease) in current liabilities classified as other.

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