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Summary of Significant Accounting Policies New Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Aug. 31, 2026
Aug. 31, 2025
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating Lease, Right-of-Use Asset $ 36,400 $ 35,400
Retained Earnings (Accumulated Deficit) [Abstract]    
Retained earnings $ 291,000 $ 284,100