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DEBT (Summary of Changes in Long-Term Debt) (Details) - USD ($)
$ in Thousands
 6 Months Ended
Feb. 28, 2022
Feb. 28, 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 30,180 $ 3,000  
Regularly scheduled loan payments, Current portion of long-term debt (3,487)    
Regularly scheduled loan payments, Long-term debt (net of current portion) (5,735)    
Regularly scheduled loan payments total (9,222)    
Reclassification of long-term debt due in the next 12 months, Current portion of long-term debt 9,657    
Reclassification of long-term debt due in the next 12 months, Long-term debt (net of current portion) (9,657)    
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] (10)    
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] 112    
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar total [2] 102    
Current portion of long-term debt 28,761    
Long-term debt (net of current portion) 120,057    
Total [3] 148,818    
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    
Repayments of long-term debt, Current portion of long-term debt (377)    
Repayments of long-term debt total (377)    
Costa Rica Subsidiary [Member]      
Debt Instrument [Line Items]      
Repayments of long-term debt, Current portion of long-term debt (1,261)    
Repayments of long-term debt, Long-term debt (net of current portion) (109)    
Repayments of long-term debt total (1,370)    
Trinidad Subsidiary [Member]      
Debt Instrument [Line Items]      
Proceeds from long-term debt incurred during the period, Current portion of long-term debt 4,844    
Proceeds from long-term debt incurred during the period, Long-term debt (net of current portion) 21,132    
Proceeds from long-term debt incurred during the period 25,976    
Cash Asset [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Collateral amount 6,400   $ 7,000
NonCash Asset [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Collateral amount $ 166,800   $ 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 $6.4 million and $166.8 million, respectively.