DEBT (Summary of Changes in Long-Term Debt) (Details) - USD ($) $ in Thousands		9 Months Ended
		May 31, 2022	May 31, 2021	Aug. 31, 2021
Debt Instrument [Line Items]
Current portion of long-term debt		$ 19,395
Long-term debt (net of current portion)		110,110
Total	[1]	129,505
Proceeds from long-term debt incurred during the period, Current portion of long-term debt		4,924
Proceeds from long-term debt incurred during the period, Long-term debt (net of current portion)		25,709
Proceeds from long-term debt incurred during the period		30,633	$ 3,000
Repayments of long-term debt, Current portion of long-term debt		(7,398)
Repayments of long-term debt, Long-term debt (net of current portion)		(10,406)
Repayments of long-term debt total		(17,804)	$ (13,135)
Reclassification of long-term debt due in the next 12 months, Current portion of long-term debt		17,395
Reclassification of long-term debt due in the next 12 months, Long-term debt (net of current portion)		(17,395)
Reclassification of long-term debt due in the next 12 months total
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Current portion of long-term debt	[2]	(41)
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Long-term debt (net of current portion)	[2]	164
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar total	[2]	123
Current portion of long-term debt		34,275
Long-term debt (net of current portion)		108,182
Total	[3]	142,457
Guatemala Subsidiary [Member]
Debt Instrument [Line Items]
Proceeds from long-term debt incurred during the period, Long-term debt (net of current portion)		4,204
Proceeds from long-term debt incurred during the period		4,204
Trinidad Subsidiary [Member]
Debt Instrument [Line Items]
Proceeds from long-term debt incurred during the period, Current portion of long-term debt		4,924
Proceeds from long-term debt incurred during the period, Long-term debt (net of current portion)		21,505
Proceeds from long-term debt incurred during the period		26,429
Cash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount		5,900		$ 7,000
NonCash Asset [Member]
Debt Instrument [Line Items]
Debt Instrument, Collateral amount		$ 160,600		$ 153,500

[1] The carrying amount of cash and non-cash assets assigned as collateral for these loans was $7.0 million and $153.5 million, respectively.

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

[3] The carrying amount of cash and non-cash assets assigned as collateral for these loans was $5.9 million and $160.6 million, respectively.