DEBT (Summary of Changes in Long-Term Debt) (Details) - USD ($) $ in Thousands		3 Months Ended
		Nov. 30, 2017	Aug. 31, 2017
Debt Instrument [Line Items]
Current portion of long-term debt		$ 18,358
Long-term debt (net of current portion)		87,939
Total	[1]	106,297
Repayments of long-term debt, Noncurrent		(3,000)
Repayments of long-term debt total		(3,000)
Regularly scheduled loan payments, Current		(225)
Regularly scheduled loan payments, Noncurrent		(4,554)
Regularly scheduled loan payments total		(4,779)
Translation adjustments on foreign-currency debt of subsidiaries whose functional currency is not the U.S. dollar, Current	[2]	124
Translation adjustments on foreign-currency debt of subsidiaries whose functional currency is not the U.S. dollar, Noncurrent	[2]	(45)
Translation adjustments on foreign-currency debt of subsidiaries whose functional currency is not the U.S. dollar total	[2]	79
Current portion of long-term debt		18,257
Long-term debt (net of current portion)		80,340
Total	[3]	98,597
Cash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount		0	$ 0
NonCash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount		$ 121,000	$ 128,400

[1] The carrying amount of non-cash assets assigned as collateral for these loans was $128.4 million. No cash assets were assigned as collateral for these loans.

[2] These foreign currency translation adjustments are recorded within Other comprehensive income.

[3] The carrying amount of non-cash assets assigned as collateral for these loans was $121.0 million. No cash assets were assigned as collateral for these loans.