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NEW MARKETS TAX CREDIT TRANSACTIONS (Details) $ in Thousands	12 Months Ended	24 Months Ended
	Aug. 31, 2024 USD ($)	Dec. 31, 2017 numberOfTaxCreditTransactions	Aug. 31, 2023 USD ($)
Income Tax Contingency [Line Items]
Number of New Markets Tax Credit transactions | numberOfTaxCreditTransactions		3
Deferred Revenue, Revenue Recognized	$ 17,700
Other Liabilities, Noncurrent	255,222		$ 253,181
Fund 156 | Micro Mill
Income Tax Contingency [Line Items]
USBCDC Capital Contribution	17,700
Commonwealth Loan	$ 35,300
Commonwealth Loan Rate (Percent)	1.08%
QEI to CDE	$ 51,500
Fund 156 | Micro Mill | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC
Income Tax Contingency [Line Items]
CDE Loan	50,700
Fund 249
Income Tax Contingency [Line Items]
Accrued expenses and other payables	6,700
Fund 249 | Spooler Project
Income Tax Contingency [Line Items]
USBCDC Capital Contribution	6,700
Commonwealth Loan	$ 14,000
Commonwealth Loan Rate (Percent)	1.39%
QEI to CDE	$ 20,000
Fund 249 | Spooler Project | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC
Income Tax Contingency [Line Items]
CDE Loan	$ 19,400
Fund 219
Income Tax Contingency [Line Items]
Period at end of which Company may be entitled or obligated to repurchase interest in the fund	8 years
Other Liabilities, Noncurrent	$ 2,800
Fund 219 and Fund 222 | T-post Shop
Income Tax Contingency [Line Items]
USBCDC Capital Contribution	5,000
Commonwealth Loan	$ 10,400
Commonwealth Loan Rate (Percent)	1.16%
QEI to CDE	$ 15,000
Fund 219 and Fund 222 | T-post Shop | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC
Income Tax Contingency [Line Items]
CDE Loan	$ 14,700
Fund 156 and Fund 249
Income Tax Contingency [Line Items]
Period at end of which Company may be entitled or obligated to repurchase interest in the fund	7 years
Fund 222
Income Tax Contingency [Line Items]
USBCDC Capital Contribution	$ 2,200
CDE Loan			$ 2,100

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