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NEW MARKETS TAX CREDIT TRANSACTIONS (Details) $ in Millions | 12 Months Ended | 24 Months Ended
--- | --- | ---
Aug. 31, 2020 USD ($) | Dec. 31, 2017 numberOfTaxCreditTransactions
Income Tax Contingency [Line Items] |  |
Number of New Markets Tax Credit transactions | numberOfTaxCreditTransactions |  | 3
Fund 156 | Micro Mill |  |
Income Tax Contingency [Line Items] |  |
USBCDC Capital Contribution | $ 17.7 |
Commonwealth Loan | $ 35.3 |
Commonwealth Loan Rate (Percent) | 1.08% |
QEI to CDE | $ 51.5 |
Fund 156 | Micro Mill | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC |  |
Income Tax Contingency [Line Items] |  |
CDE Loan | 50.7 |
Fund 249 | Spooler Project |  |
Income Tax Contingency [Line Items] |  |
USBCDC Capital Contribution | 6.7 |
Commonwealth Loan | $ 14.0 |
Commonwealth Loan Rate (Percent) | 1.39% |
QEI to CDE | $ 20.0 |
Fund 249 | Spooler Project | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC |  |
Income Tax Contingency [Line Items] |  |
CDE Loan | $ 19.4 |
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 |
Fund 219 and Fund 222 | T-post Shop |  |
Income Tax Contingency [Line Items] |  |
USBCDC Capital Contribution | $ 5.0 |
Commonwealth Loan | $ 10.4 |
Commonwealth Loan Rate (Percent) | 1.16% |
QEI to CDE | $ 15.0 |
Fund 219 and Fund 222 | T-post Shop | Qualified Equity Investment Loans | CMC Steel Oklahoma, LLC |  |
Income Tax Contingency [Line Items] |  |
CDE Loan | $ 14.7 |
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 | Qualified Equity Investment Loans |  |
Income Tax Contingency [Line Items] |  |
CDE Loan | $ 2.1 |

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