SEGMENTS (Schedule of Segment Revenues, Operating Costs and Balance Sheet Items) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2025	May 31, 2024	Aug. 31, 2024
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,317,289	$ 1,229,428	$ 3,939,119	$ 3,687,853
Depreciation, property and equipment	22,757	21,129	65,386	61,114
Operating income	56,230	49,909	179,760	171,740
Net income	35,158	32,489	116,346	109,807
Long-lived assets (other than deferred tax assets)	1,163,658	1,123,447	1,163,658	1,123,447	$ 1,110,532
Goodwill	43,231	43,182	43,231	43,182	43,197
Total assets	2,144,440	2,020,698	2,144,440	2,020,698	2,022,694
Capital expenditures, net	36,871	35,512	97,915	139,981
Investment in unconsolidated affiliates					6,882
Operating Segments | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	990	11,587	14,595	30,107
Depreciation, property and equipment	2,070	1,470	5,676	4,177
Operating income	(4,393)	1,636	(7,663)	19,481
Net income	(11,274)	(2,097)	(24,812)	4,320
Long-lived assets (other than deferred tax assets)	71,548	82,727	71,548	82,727	72,727
Goodwill	8,981	8,982	8,981	8,982	8,981
Total assets	237,412	222,690	237,412	222,690	220,076
Capital expenditures, net	3,236	5,515	5,868	9,162
Investment in unconsolidated affiliates					0
Operating Segments | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	801,341	744,626	2,385,508	2,225,507
Depreciation, property and equipment	11,514	11,036	33,570	31,734
Operating income	62,004	54,874	187,204	173,086
Net income	56,154	47,588	163,432	146,694
Long-lived assets (other than deferred tax assets)	652,921	605,453	652,921	605,453	614,382
Goodwill	24,240	24,159	24,240	24,159	24,193
Total assets	1,133,625	1,060,211	1,133,625	1,060,211	1,065,493
Capital expenditures, net	18,750	17,216	54,766	90,488
Investment in unconsolidated affiliates					6,882
Operating Segments | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	360,989	333,219	1,086,237	1,016,608
Depreciation, property and equipment	5,936	4,967	16,507	14,664
Operating income	24,650	22,915	78,929	72,965
Net income	18,807	18,707	63,205	58,807
Long-lived assets (other than deferred tax assets)	242,471	220,308	242,471	220,308	224,019
Goodwill	10,010	10,041	10,010	10,041	10,023
Total assets	493,315	438,578	493,315	438,578	451,265
Capital expenditures, net	13,534	10,270	30,466	29,597
Investment in unconsolidated affiliates					0
Operating Segments | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	153,969	139,996	452,779	415,631
Depreciation, property and equipment	3,237	3,656	9,633	10,539
Operating income	6,186	3,289	16,009	11,498
Net income	3,688	1,096	9,240	5,276
Long-lived assets (other than deferred tax assets)	196,718	214,959	196,718	214,959	199,404
Goodwill	0	0	0	0	0
Total assets	280,088	299,219	280,088	299,219	285,860
Capital expenditures, net	1,351	2,511	6,815	10,734
Investment in unconsolidated affiliates					0
Intersegment revenues
Segment Reporting Information [Line Items]
Revenue from external customers	(501,774)	(442,025)	(1,533,246)	(1,343,220)
Intersegment revenues | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	489,631	430,236	1,497,761	1,311,880
Intersegment revenues | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	8,155	8,777	25,176	23,331
Intersegment revenues | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	2,182	1,597	5,664	4,305
Intersegment revenues | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,806	1,415	4,645	3,704
Reconciling Items
Segment Reporting Information [Line Items]
Revenue from external customers	0	0	0	0
Depreciation, property and equipment	0	0	0	0
Operating income	(32,217)	(32,805)	(94,719)	(105,290)
Net income	(32,217)	(32,805)	(94,719)	(105,290)
Long-lived assets (other than deferred tax assets)	0	0	0	0	0
Goodwill	0	0	0	0	0
Total assets	0	0	0	0	0
Capital expenditures, net	$ 0	$ 0	$ 0	$ 0
Investment in unconsolidated affiliates					$ 0