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PROPERTY AND EQUIPMENT (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Property, Plant and Equipment [Line Items]    
Accounts payable $ 388,791 $ 373,172
Other accrued expenses 39,736 37,731
Other long-term liabilities 10,930 12,182
Construction In Progress [Member]    
Property, Plant and Equipment [Line Items]    
Accounts payable 1,200 2,200
Other accrued expenses 2,300 7,300
Other long-term liabilities $ 0 $ 1,000
Minimum [Member] | Fixtures And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Useful life 3 years  
Minimum [Member] | Building And Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Useful life 10 years  
Maximum [Member] | Fixtures And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Useful life 15 years  
Maximum [Member] | Building And Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Useful life 40 years