INCOME TAXES (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Nov. 30, 2014	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Income Tax Contingency [Line Items]
Deferred tax liabilities arising from timing differences in certain subsidiaries		$ 1,800,000	$ 1,800,000
Provision for income taxes, percentage		32.60%	34.80%	30.80%
Effective income tax rate change		32.60%
Unfavorable tax impact		1.50%
Deferred tax assets, valuation allowance		$ 2,000,000
Deferred Tax Assets, Net, Foreign		8,900,000	$ 10,600,000
Operating loss carryforwards (NOLs), annual limitation amount		3,500,000
Undistributed foreign earnings		472,500,000	405,200,000
Unrecognized tax benefits		7,754,000	8,159,000	$ 8,786,000	$ 9,373,000
Deferred income taxes that could reduce unrecognized tax benefits		7,200,000
Unrecognized tax benefitt, net amount if recognized would favorably affect the effective tax rate		600,000
Expected change in unrecognized tax benefits reduction of taxes payable		129,000
Provisional assessments, includes taxes, penalties and interest related to withholding taxes	$ 2,500,000
Additional provisional assessment	$ 5,100,000
Deferred tax assets, net		1,900,000
Income taxes receivable		16,778,000	11,713,000
Income tax interest and/or penalties accrued		$ 370,000	619,000
Federal and State Jurisdicition [Member]
Income Tax Contingency [Line Items]
Effective income tax rate change		3.00%
Operating Loss Carryforwards		$ 7,400,000	$ 7,400,000
Unknown Country [Member]
Income Tax Contingency [Line Items]
Deferred tax assets, net		1,900,000
Income taxes receivable		$ 2,500,000