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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
 9 Months Ended
May 31, 2025
Aug. 31, 2024
Aug. 31, 2022
Finite-Lived Intangible Assets [Line Items]      
Goodwill, accumulated impairment loss $ 0    
Gross carrying amount 39,897,000 $ 38,863,000  
Accumulated amortization 33,661,000 32,641,000  
Net carrying amount 2,356,000 6,222,000  
Intangible assets, impairment charge $ 0    
Spot Shot | Americas      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount   $ 13,700,000  
Useful life   17 years  
Accumulated amortization   $ 10,900,000  
Net carrying amount   2,800,000  
Carpet Fresh | Americas      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount     $ 2,800,000
Useful life     13 years
1001 Trade Name | EIMEA      
Finite-Lived Intangible Assets [Line Items]      
Gross carrying amount   $ 3,300,000  
Useful life   20 years  
Accumulated amortization   $ 2,200,000  
Net carrying amount   $ 1,100,000