POST EMPLOYMENT PLANS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
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	$ 2.1	$ 2.0	$ 1.8
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 3.0	$ 2.9	$ 3.1
Maximum [Member] | Non-Officer [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee contribution rate	2.00%