ACQUISITION (Components of the Preliminary Purchase Price Allocation) (Details) - USD ($) $ in Thousands	May 31, 2018	Aug. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 51,351	$ 35,642
Aeropost, Inc [Member]
Business Acquisition [Line Items]
Current assets	4,196
Other non-current assets	746
Property, plant and equipment	2,059
Intangible assets	16,100
Goodwill	16,033
Total assets acquired	39,134
Current liabilities	(5,862)
Non-current liabilities	(7,607)
Noncontrolling interest	(562)
Net assets acquired	25,103
Income tax contingencies	$ 3,100