REVENUE RECOGNITION (Disaggregated Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 857,478	$ 768,368	$ 2,594,251	$ 2,418,822
Foods And Sundries [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	431,007	419,579	1,298,134	1,250,728
Fresh Foods [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	252,365	228,858	745,158	685,413
Hardlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	94,732	70,374	318,229	261,796
Softlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	43,468	25,597	130,732	115,860
Other Business [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 35,906	$ 23,960	$ 101,998	$ 105,025