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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($)
 12 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Aug. 31, 2021
Property, Plant and Equipment [Line Items]      
Depreciation $ 7,100,000 $ 6,900,000 $ 5,600,000
Cost of goods sold, depreciation 3,000,000 2,500,000 1,200,000
Impairment of goodwill 0 0 0
Impairment of long-lived assets 0 0 0
Total long-term borrowings 109,743,000 107,139,000  
Self-insurance reserves 0 0  
Shipping and handling costs 17,100,000 18,600,000 16,500,000
Advertising and sales promotion 28,807,000 27,343,000 27,956,000
Research and development expense 6,200,000 5,100,000 5,600,000
Foreign currency transactions gain (loss), before tax 500,000 (1,100,000) 0
Unrealized foreign currency transactions 1,702,000 (1,035,000) 511,000
Foreign Currency Forward Contracts      
Property, Plant and Equipment [Line Items]      
Foreign currency forward contracts outstanding $ 2,600,000    
Foreign currency forward contracts, maturity date Sep. 01, 2023    
Unrealized foreign currency transactions $ 0 0  
Realized net losses 0 0  
Level 2 | Senior Notes      
Property, Plant and Equipment [Line Items]      
Fair value of senior notes 60,100,000    
Total long-term borrowings 67,600,000    
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