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Intangibles and Other Assets, Net - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Feb. 28, 2023
Feb. 28, 2022
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization expense $ 2.0 $ 2.3 $ 4.0 $ 5.4
Future amortization expense, 2023 8.3   8.3  
Future amortization expense, 2024 7.5   7.5  
Future amortization expense, 2025 6.5   6.5  
Future amortization expense, 2026 6.1   6.1  
Future amortization expense, 2027 $ 5.3   $ 5.3