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Benefit Plans - Information for the Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Thousands | Aug. 31, 2023 | Aug. 31, 2022
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Retirement Benefits [Abstract] |  |
Projected benefit obligation | $ 20,980 | $ 18,257
Accumulated benefit obligation | $ 20,908 | $ 18,257

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