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DEBT (Summary of Changes in Long-Term Debt) (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
May 31, 2020 | Aug. 31, 2019
Debt Instrument [Line Items] |  |  |
Current portion of long-term debt |  | $ 25,875,000 |
Long-term debt (net of current portion) |  | 63,711,000 |
Total | [1] | 89,586,000 |
Proceeds from long-term debt incurred during the period total |  | 57,820,000 |
Regularly scheduled loan payments, Current |  | (1,539,000) |
Regularly scheduled loan payments, Noncurrent |  | (6,003,000) |
Regularly scheduled loan payments total |  | (7,542,000) |
Refinances of short-term debt, Current |  | (11,046,000) |
Refinances of short-term debt, Noncurrent |  | 11,046,000 |
Refinances of short-term debt total |  |  |
Reclassification of long-term debt, Current |  | 3,402,000 |
Reclassification of long-term debt, Noncurrent |  | (3,402,000) |
Reclassification of long-term debt total |  |  |
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Current | [2] | 92,000 |
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar, Noncurrent | [2] | (127,000) |
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar total | [2] | (35,000) |
Current portion of long-term debt |  | 22,784,000 |
Long-term debt (net of current portion) |  | 117,045,000 |
Total | [3] | 139,829,000 |
Colombia Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from long-term debt incurred during the period, Noncurrent |  | 25,000,000 |
Proceeds from long-term debt incurred during the period total |  | 25,000,000 |
Guatemala Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from long-term debt incurred during the period, Noncurrent |  | 20,820,000 |
Proceeds from long-term debt incurred during the period total |  | 20,820,000 |
Trinidad Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from long-term debt incurred during the period, Current |  | 6,000,000 |
Proceeds from long-term debt incurred during the period, Noncurrent |  | 6,000,000 |
Proceeds from long-term debt incurred during the period total |  | 12,000,000 |
Cash Asset [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Collateral amount |  | 0 | $ 0
NonCash Asset [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, Collateral amount |  | $ 166,200,000 | $ 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.
[3] | The carrying amount of non-cash assets assigned as collateral for these loans was $166.2 million. No cash assets were assigned as collateral for these loans.

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