INCOME TAX (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016	Aug. 31, 2016
Operating Loss Carryforwards [Line Items]
Effective income tax rate from continuing operations	24.20%	23.30%	24.90%	25.50%
Statutory income tax rate			35.00%	35.00%
Net income tax payments			$ 28.2	$ 36.0
Unrecognized income tax benefits	$ 9.3		9.3		$ 9.5
Possible unrecognized income tax benefits decrease during the next twelve months	9.3		9.3
Unrecognized income tax benefits that would reduce provisions for income taxes	$ 9.3		$ 9.3
Poland
Operating Loss Carryforwards [Line Items]
Statutory income tax rate			19.00%