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Intangibles and Other Assets, Net - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2025
Aug. 31, 2024
Aug. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense $ 6.3 $ 7.2 $ 8.0
Future amortization expense, 2026 6.1    
Future amortization expense, 2027 5.2    
Future amortization expense, 2028 4.2    
Future amortization expense, 2029 2.7    
Future amortization expense, 2030 $ 1.6    
Amortizable intangible assets, weighted-average remaining useful life 6 years 6 months