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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($)
 12 Months Ended
Aug. 31, 2024
Aug. 31, 2023
Aug. 31, 2022
Property, Plant and Equipment [Line Items]      
Depreciation $ 8,000,000.0 $ 7,100,000 $ 6,900,000
Cost of goods sold, depreciation 3,900,000 3,000,000.0 2,500,000
Impairment of goodwill 0 0 0
Impairment of long-lived assets 0 0 0
Total long-term borrowings 85,977,000 109,743,000  
Self-insurance reserves 0 0  
Shipping and handling costs 17,300,000 17,100,000 18,600,000
Advertising and sales promotion 33,911,000 28,807,000 27,343,000
Research and development expense 8,000,000.0 6,200,000 5,100,000
Foreign currency transactions (loss) gain, before tax (1,300,000) 500,000 (1,100,000)
Unrealized foreign currency gains (losses) $ (200,000) 1,702,000 (1,035,000)
Restricted Stock Units | Nonemployee directors      
Property, Plant and Equipment [Line Items]      
Vesting period 1 year    
Foreign Currency Forward Contracts      
Property, Plant and Equipment [Line Items]      
Foreign currency forward contracts outstanding $ 21,800,000    
Foreign currency forward contracts, maturity date Sep. 01, 2024    
Unrealized foreign currency gains (losses) $ 0 0  
Realized net losses 0 0  
Level 2 | Senior Notes      
Property, Plant and Equipment [Line Items]      
Fair value of senior notes 61,800,000    
Total long-term borrowings 66,800,000    
Level 2 | Recurring      
Property, Plant and Equipment [Line Items]      
Assets 0    
Liabilities 0    
Level 2 | Nonrecurring      
Property, Plant and Equipment [Line Items]      
Assets 0 0 0
Liabilities $ 0 $ 0 $ 0
Minimum      
Property, Plant and Equipment [Line Items]      
Service period of employee awards 1 year    
Minimum | Buildings and improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 10 years    
Minimum | Machinery And Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Vehicles      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | R&D Lab Equipment And Office Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Software and Computer Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Minimum | Internal-Use Software And Cloud Computing Arrangements      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 3 years    
Maximum      
Property, Plant and Equipment [Line Items]      
Service period of employee awards 3 years    
Maximum | Buildings and improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 40 years    
Maximum | Machinery And Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 15 years    
Maximum | Vehicles      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 5 years    
Maximum | Furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 10 years    
Maximum | R&D Lab Equipment And Office Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 7 years    
Maximum | Software and Computer Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 5 years    
Maximum | Internal-Use Software And Cloud Computing Arrangements      
Property, Plant and Equipment [Line Items]      
Property and equipment, useful life 5 years