SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Carrying Value and Fair Value of Debt) (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Thousands	Aug. 31, 2018		Aug. 31, 2017
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	$ 102,575		$ 106,297
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	$ 96,959	[1]	$ 102,911

[1] The Company has disclosed the fair value of long-term debt, including debt for which it has entered into cross-currency interest rate swaps, using the derivative obligation as of August 31, 2018 to estimate the fair value of long-term debt, which includes the effects that the cross-currency interest rate swaps have had on the fair value of long-term debt.