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CREDIT ARRANGEMENTS (Long-term Debt, Including the Deferred Gain from the Termination of the Interest Rate Swaps) (Details) - USD ($) $ in Thousands | Nov. 30, 2020 | Aug. 31, 2020
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Debt Instrument [Line Items] |  |
Total debt | $ 1,093,754 | $ 1,092,266
Less debt issuance costs | 8,160 | 8,581
Total amounts outstanding | 1,085,594 | 1,083,685
Less current maturities of long-term debt | 20,701 | 18,149
Long-term debt | $ 1,064,893 | 1,065,536
2027 Notes |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 5.375% |
Total debt | $ 300,000 | 300,000
2026 Notes |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 5.75% |
Total debt | $ 350,000 | 350,000
2023 Notes |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 4.875% |
Total debt | $ 330,000 | 330,000
Poland Term Loan | Revolving credit facility |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 1.72% |
Total debt | $ 39,944 | 40,713
Other |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 5.10% |
Total debt | $ 21,329 | 21,329
Finance leases |  |
Debt Instrument [Line Items] |  |
Total debt | $ 52,481 | $ 50,224

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