REVENUE RECOGNITION (Disaggregated Revenues) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 3,465,442	$ 3,191,762	$ 3,091,648
Foods And Sundries [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	1,736,509	1,656,682	1,563,162
Fresh Foods [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	1,003,694	912,325	847,496
Hardlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	409,644	345,051	358,276
Softlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	175,505	147,085	167,149
Other Business [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 140,090	$ 130,619	$ 155,565