Accounting Policies - Stock-Based Compensation (Details) |
12 Months Ended |
|---|---|
Aug. 31, 2025 | |
| Employees [Member] | |
| Summary Of Significant Accounting Policies [Line Items] | |
| Share-based compensation arrangement by share-based payment award, award vesting period | 5 years |
| Share-based compensation arrangement by share-based payment number of years of service | 25 years |
| Non Employee Directors [Member] | |
| Summary Of Significant Accounting Policies [Line Items] | |
| Share-based compensation arrangement by share-based payment award, award vesting period | 3 years |