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Industry Segment Information (Narrative) (Details)
3 Months Ended
Nov. 30, 2023
Segment
Customer
Nov. 30, 2022
Segment Reporting Information [Line Items]    
Number of reportable segments 2  
Irrigation [Member]    
Segment Reporting Information [Line Items]    
Number of operating segments 1  
Infrastructure [Member]    
Segment Reporting Information [Line Items]    
Number of operating segments 1  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]    
Segment Reporting Information [Line Items]    
Number of major customers | Customer 0  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Minimum [Member]    
Segment Reporting Information [Line Items]    
Concentration risk, percentage 10.00% 10.00%