DEBT (Schedule of Changes in Long-Term Debt) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Total
Current portion of long-term debt	$ 33,715	$ 19,395
Long-term debt (net of current portion)	103,556	110,110
Total	137,271	129,505
Proceeds from long-term debt received during the period:
Current portion of long-term debt	1,751	4,924
Long-term debt (net of current portion)	36,962	25,709
Total	38,713	30,633	$ 17,565
Repayments of long-term debt:
Current portion of long-term debt	(17,541)	(8,110)
Long-term debt (net of current portion)	(18,443)	(14,587)
Total	(35,984)	(22,697)	(19,993)
Reclassifications of long-term debt due in the next 12 months
Current portion of long-term debt	1,729	17,618
Long-term debt (net of current portion)	(1,729)	(17,618)
Total	0	0
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar
Current portion of long-term debt	539	(112)
Long-term debt (net of current portion)	(859)	(58)
Total	(320)	(170)
Current portion of long-term debt	20,193	33,715	19,395
Long-term debt (net of current portion)	119,487	103,556	110,110
Total	139,680	137,271	129,505
NonCash Asset
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar
Collateral amount	156,200	155,600	153,500
Cash Asset
Translation adjustments on foreign currency debt of subsidiaries whose functional currency is not the U.S. dollar
Collateral amount	3,500	5,300	$ 7,000
Guatemala subsidiary
Proceeds from long-term debt received during the period:
Current portion of long-term debt	0	0
Long-term debt (net of current portion)	12,454	4,204
Total	12,454	4,204
Trinidad subsidiary
Proceeds from long-term debt received during the period:
Current portion of long-term debt	750	4,924
Long-term debt (net of current portion)	4,250	21,505
Total	5,000	$ 26,429
Barbados subsidiary
Proceeds from long-term debt received during the period:
Current portion of long-term debt	0
Long-term debt (net of current portion)	7,460
Total	7,460
Honduras subsidiary
Proceeds from long-term debt received during the period:
Current portion of long-term debt	1,001
Long-term debt (net of current portion)	12,798
Total	$ 13,799