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Commitments and Contingencies (Summary of Undiscounted Environmental Remediation Liability Classifications) (Details) - USD ($) $ in Thousands | Nov. 30, 2022 | Aug. 31, 2022 | Nov. 30, 2021
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Commitments and Contingencies Disclosure [Abstract] |  |  |
Other current liabilities | $ 3,319 | $ 4,179 | $ 828
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Current | Other Liabilities, Current | Other Liabilities, Current
Other noncurrent liabilities | $ 10,255 | $ 10,967 | $ 15,181
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent
Total environmental remediation liabilities | $ 13,574 | $ 15,146 | $ 16,009

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