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Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Loss) (Details) (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Accumulated Other Comprehensive Loss [Abstract]    
Defined benefit pension tax $ 620 $ 716
Foreign currency adjustment tax 3,868 4,875
Unrealized loss on marketable securities $ 23 $ 78