POST EMPLOYMENT PLANS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Maximum contribution rate of annual eligible earnings to be matched under 401(k) plans	4.00%
U.S. Federal [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 2.6	$ 2.2	$ 2.1
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 3.0	$ 3.1	$ 3.0
Maximum [Member] | Non-Officer [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee contribution rate	2.00%