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Credit Arrangements (Schedule of Principal Payments Due on Long-Term Debt) (Details) - USD ($)
$ in Thousands
Aug. 31, 2023
Aug. 31, 2022
Debt Disclosure [Abstract]    
1 year $ 226  
2 years 230  
3 years 235  
4 years 19  
Thereafter 115,000  
Total debt $ 115,710 $ 115,931