DEBT (Summary of Changes in Long-Term Debt) (Details)	3 Months Ended
	Nov. 30, 2019 USD ($)
Debt Instrument [Line Items]
Current portion of long-term debt	$ 25,875,000
Long-term debt (net of current portion)	63,711,000
Total	89,586,000	[1]
Regularly scheduled loan payments, Current	(947,000)
Regularly scheduled loan payments, Noncurrent	(1,889,000)
Regularly scheduled loan payments total	(2,836,000)
Reclassification of long-term debt, Current	(11,253,000)
Reclassification of long-term debt, Noncurrent	11,253,000
Reclassification of long-term debt total	0
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Current	51,000	[2]
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Noncurrent	9,000	[2]
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar total	60,000	[2]
Current portion of long-term debt	13,726,000
Long-term debt (net of current portion)	98,084,000
Total	111,810,000	[1]
Colombia Subsidiary [Member]
Debt Instrument [Line Items]
Proceeds from long-term debt incurred during the period, Noncurrent	25,000,000
Total	25,000,000
Cash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount	0
NonCash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount	$ 111,300,000

[1] The carrying amount of non-cash assets assigned as collateral for these loans was $111.3 million. No cash assets were assigned as collateral for these loans.

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