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Share-Based Compensation (Summary of Restricted Stock Unit Activity) (Details) - Restricted Stock Units [Member]
12 Months Ended
Aug. 31, 2022
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock units outstanding | shares 57,340
Granted, number of stock units | shares 26,190
Vested, number of stock units | shares (30,018)
Forfeited/ cancelled, number of stock units | shares (9,261)
Stock units outstanding | shares 44,251
Stock units, weighted-average grant-date fair value | $ / shares $ 102.60
Granted, weighted-average grant-date fair value | $ / shares 144.79
Vested, weighted-average grant-date fair value | $ / shares 108.18
Forfeited/ cancelled, weighted-average grant-date fair value | $ / shares 116.74
Stock units, weighted-average grant-date fair value | $ / shares $ 126.50