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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2023 USD ($) | Aug. 31, 2025 USD ($) numberOfRerollingMills | Aug. 31, 2024 USD ($) | Aug. 31, 2023 USD ($) | Aug. 31, 2025 mill | Aug. 31, 2025
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Number Of Electric Arc Furnace Mini Mills | mill |  |  |  |  | 6 |
Number Of Electric Arc Furnace Micro Mills | mill |  |  |  |  | 3 |
Number of rerolling mills |  | 1 |  |  | 1 |
Asset impairments | $ 3,500 | $ 4,607 | $ 6,708 | $ 3,780 |  |
Realized and unrealized gain (loss) on investment and foreign currency |  | 9,800 | 7,700 | 12,100 |  |
North America Steel Group |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Asset impairments |  |  | 6,600 |  |  |
West Virginia Economic Development Authority |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Agreement For Performance Based Principal Reduction Loan |  |  |  | 75,000 |  |
Proceeds From Performance Based Principal Reduction Loan |  | 50,000 |  | 5,000 |  |
Poland Compensation Scheme Act |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Proceeds From Government Grants Related To Income |  | 74,700 | 29,200 | 9,500 |  |
Energy Aid Program, 2022 |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Proceeds From Government Grants Related To Income |  | $ 4,000 | $ 40,200 | $ 4,300 |  |
Receivables secured by credit insurance or letters of credit |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Percentage of accounts receivable secured by credit insurance or letters of credit |  |  | 13.00% |  |  | 15.00%

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