POST EMPLOYMENT PLANS (Summary of Other Post Employment Plans) (Details) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Accrued Salaries And Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Post Employment Plans		$ 438	$ 471
Other Long-term Liabilities [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Post Employment Plans		3,813	3,404
Restricted Cash Held [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Post Employment Plans	[1]	3,688	3,153
Operating Expense [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Post Employment Plans		$ 1,250	$ 1,259	$ 1,187

[1] With some locations, local statutes require the applicable Company subsidiary to deposit cash in its own name with designated fund managers. The funds earn interest which the Company recognizes as interest income.