SEGMENTS (Details) $ in Thousands		3 Months Ended
		Nov. 30, 2015 USD ($) Country		Nov. 30, 2014 USD ($)	Aug. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of Countries in which Entity Operates | Country		13
Segment Reporting Information
Revenue from external customers		$ 711,931		$ 656,021
Intersegment revenues		0		0
Depreciation and amortization		9,203		7,797
Operating income		37,295		36,285
Net income		23,672		20,647
Property, Plant and Equipment, Additions		19,347		29,620
Long-lived assets (other than deferred tax assets)		497,388		505,747	$ 484,003
Goodwill		35,846		36,162	35,871
Identifiable assets		1,047,594		1,037,132	991,692
United States Operations
Segment Reporting Information
Revenue from external customers		8,249		8,431
Intersegment revenues		314,621		338,328
Depreciation and amortization		930		542
Operating income		5,479		7,903
Net income		1,727		3,362
Property, Plant and Equipment, Additions	[1]	909
Property, Plant and Equipment, Additions net of exports				(2,773)
Long-lived assets (other than deferred tax assets)		15,380		13,261	15,391
Goodwill		0		0	0
Identifiable assets		71,467		69,240	89,167
Central American Operations
Segment Reporting Information
Revenue from external customers		423,560		383,164
Intersegment revenues		0		0
Depreciation and amortization		4,241		3,644
Operating income		33,709		31,132
Net income		26,202		24,328
Property, Plant and Equipment, Additions		11,181		14,806
Long-lived assets (other than deferred tax assets)		266,435		250,968	255,576
Goodwill		31,212		31,445	31,211
Identifiable assets		529,699		503,941	491,548
Caribbean Operations
Segment Reporting Information
Revenue from external customers		211,663		198,391
Intersegment revenues		1,438		1,383
Depreciation and amortization		2,408		2,288
Operating income		13,590		12,169
Net income		11,803		10,254
Property, Plant and Equipment, Additions		3,982		3,196
Long-lived assets (other than deferred tax assets)		109,455		109,905	107,746
Goodwill		4,634		4,717	4,660
Identifiable assets		278,149		249,220	239,311
Colombia Operations [Member]
Segment Reporting Information
Revenue from external customers		68,459		66,035
Intersegment revenues		0		0
Depreciation and amortization		1,624		1,323
Operating income		(334)		(937)
Net income		(911)		(3,315)
Property, Plant and Equipment, Additions		3,275		14,391
Long-lived assets (other than deferred tax assets)		106,118		131,613	105,290
Goodwill		0		0	0
Identifiable assets		168,279		214,731	171,666
Reconciling Items
Segment Reporting Information
Revenue from external customers				0
Intersegment revenues	[2]	(316,059)		(339,711)
Operating income		(15,149)	[2]	(13,982)
Net income		(15,149)	[2]	(13,982)
Long-lived assets (other than deferred tax assets)		0		0	0
Goodwill		0		0	0
Identifiable assets		$ 0		$ 0	$ 0

[1] (2) The decrease in capital expenditures is a result of the transfers of capital assets from this segment to other segments.

[2] (1) The reconciling items reflect the amount eliminated on consolidation of intersegment transactions