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Concentration of Risk and Segment Data - Foreign Source Revenue (Details)
3 Months Ended 6 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Feb. 28, 2023
Feb. 28, 2022
Foreign source revenue | Net revenue | Foreign source revenue        
Concentration Risk [Line Items]        
Concentration risk 84.00% 83.50% 85.00% 84.20%