REVENUE RECOGNITION (Disaggregated Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended
Nov. 30, 2018	Nov. 30, 2017
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 747,443	$ 745,401
Foods And Sundries [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	376,328	374,729
Fresh Foods [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	200,705	192,728
Hardlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	92,154	96,419
Softlines [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	40,481	38,691
Other Business [Member]
Disaggregation of Revenue [Line Items]
Net Merchandise Sales	$ 37,775	$ 42,834

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration