SEGMENTS (Schedule of Segment Revenues, Operating Costs and Balance Sheet Items) (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Aug. 31, 2024
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,257,944	$ 1,166,475
Depreciation, property and equipment	20,862	19,494
Operating income	58,260	58,213
Net income	37,428	38,047
Long-lived assets (other than deferred tax assets)	1,117,142	1,074,056	$ 1,110,532
Goodwill	43,215	43,135	43,197
Total assets	2,087,682	2,029,279	2,022,694
Capital expenditures, net	28,372	37,082
Investment in unconsolidated affiliates			6,882
Operating Segments | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	9,618	10,009
Depreciation, property and equipment	1,768	1,324
Operating income	(1,540)	9,949
Net income	(6,245)	3,325
Long-lived assets (other than deferred tax assets)	71,614	72,359	72,727
Goodwill	8,981	8,981	8,981
Total assets	210,842	217,158	220,076
Capital expenditures, net	572	2,939
Investment in unconsolidated affiliates			0
Operating Segments | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	760,296	700,567
Depreciation, property and equipment	10,944	10,010
Operating income	59,715	56,902
Net income	50,921	48,533
Long-lived assets (other than deferred tax assets)	627,942	578,707	614,382
Goodwill	24,204	24,110	24,193
Total assets	1,103,690	1,067,842	1,065,493
Capital expenditures, net	15,445	21,340
Investment in unconsolidated affiliates			6,882
Operating Segments | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	345,382	326,967
Depreciation, property and equipment	5,005	4,821
Operating income	26,090	23,332
Net income	21,677	19,081
Long-lived assets (other than deferred tax assets)	230,920	214,936	224,019
Goodwill	10,030	10,044	10,023
Total assets	496,459	447,639	451,265
Capital expenditures, net	9,890	8,989
Investment in unconsolidated affiliates			0
Operating Segments | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	142,648	128,932
Depreciation, property and equipment	3,145	3,339
Operating income	4,425	3,617
Net income	1,505	2,695
Long-lived assets (other than deferred tax assets)	186,666	208,054	199,404
Goodwill	0	0	0
Total assets	276,691	296,640	285,860
Capital expenditures, net	2,465	3,814
Investment in unconsolidated affiliates			0
Intersegment revenues
Segment Reporting Information [Line Items]
Revenue from external customers	(527,778)	(454,854)
Intersegment revenues | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	515,594	446,337
Intersegment revenues | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	9,333	6,092
Intersegment revenues | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,825	1,400
Intersegment revenues | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,026	1,025
Reconciling Items
Segment Reporting Information [Line Items]
Revenue from external customers	0	0
Depreciation, property and equipment	0	0
Operating income	(30,430)	(35,587)
Net income	(30,430)	(35,587)
Long-lived assets (other than deferred tax assets)	0	0	0
Goodwill	0	0	0
Total assets	0	0	0
Capital expenditures, net	$ 0	$ 0
Investment in unconsolidated affiliates			$ 0