SEGMENTS (Schedule of Segment Revenues, Operating Costs and Balance Sheet Items) (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Aug. 31, 2023
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,166,475	$ 1,054,806
Depreciation, property and equipment	19,494	17,184
Operating income	58,213	55,527
Net income	38,047	32,905
Long-lived assets (other than deferred tax assets)	1,074,056	964,034	$ 1,053,353
Goodwill	43,135	43,173	43,110
Total assets	2,029,279	1,887,920	2,005,608
Capital expenditures, net	37,082	25,419
Amortization, Intangibles		384
Investment in unconsolidated affiliates			10,479
Operating segments | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	10,009	10,458
Depreciation, property and equipment	1,324	1,378
Operating income	9,949	13,592
Net income	3,325	5,825
Long-lived assets (other than deferred tax assets)	72,359	73,083	71,919
Goodwill	8,981	8,981	8,981
Total assets	217,158	238,551	302,115
Capital expenditures, net	2,939	5,491
Amortization, Intangibles		384
Investment in unconsolidated affiliates			0
Operating segments | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	700,567	629,079
Depreciation, property and equipment	10,010	8,799
Operating income	56,902	50,130
Net income	48,533	42,006
Long-lived assets (other than deferred tax assets)	578,707	509,961	566,139
Goodwill	24,110	24,142	24,083
Total assets	1,067,842	924,049	995,881
Capital expenditures, net	21,340	12,244
Amortization, Intangibles		0
Investment in unconsolidated affiliates			10,479
Operating segments | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	326,967	307,525
Depreciation, property and equipment	4,821	4,631
Operating income	23,332	24,503
Net income	19,081	19,284
Long-lived assets (other than deferred tax assets)	214,936	213,963	210,000
Goodwill	10,044	10,050	10,046
Total assets	447,639	492,744	425,145
Capital expenditures, net	8,989	3,401
Amortization, Intangibles		0
Investment in unconsolidated affiliates			0
Operating segments | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	128,932	107,744
Depreciation, property and equipment	3,339	2,376
Operating income	3,617	4,868
Net income	2,695	3,356
Long-lived assets (other than deferred tax assets)	208,054	167,027	205,295
Goodwill	0	0	0
Total assets	296,640	232,576	282,467
Capital expenditures, net	3,814	4,283
Amortization, Intangibles		0
Investment in unconsolidated affiliates			0
Intersegment revenues
Segment Reporting Information [Line Items]
Revenue from external customers	(454,854)	(416,441)
Intersegment revenues | United ‎States ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	446,337	407,640
Intersegment revenues | Central ‎American ‎Operations
Segment Reporting Information [Line Items]
Revenue from external customers	6,092	6,582
Intersegment revenues | Caribbean Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,400	1,514
Intersegment revenues | Colombia Operations
Segment Reporting Information [Line Items]
Revenue from external customers	1,025	705
Reconciling Items
Segment Reporting Information [Line Items]
Revenue from external customers	0	0
Depreciation, property and equipment	0	0
Operating income	(35,587)	(37,566)
Net income	(35,587)	(37,566)
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
Amortization, Intangibles		$ 0
Investment in unconsolidated affiliates			$ 0