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Accounts Receivables (Activity In Allowance For Doubtful Accounts) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Accounts Receivable [Abstract]      
Beginning balance $ 4,643 $ 4,159 $ 4,242
Charged to costs and expenses 306 1,553 2,023
Deductions (457) (1,069) (2,106)
Ending balance $ 4,492 $ 4,643 $ 4,159