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INCOME TAXES (Schedule of Reconciliation of Effective Tax Rate) (Details)
12 Months Ended
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2015
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]      
Federal tax provision at statutory rates 35.00% 35.00% 35.00%
State taxes, net of federal benefit 0.30% 0.20% 0.40%
Differences in foreign tax rates (5.20%) (5.60%) (4.20%)
Permanent items and other adjustments 1.50% 2.00% 2.30%
Increase in foreign valuation allowance 0.10% 1.00% 1.30%
Provision for income taxes 31.70% 32.60% 34.80%