SALES OF ACCOUNTS RECEIVABLE (Narrative) (Details) $ in Thousands, zł in Millions	3 Months Ended		6 Months Ended
	Feb. 28, 2018 USD ($)	Feb. 28, 2017 USD ($)	Feb. 28, 2018 PLN (zł) financial_institution	Feb. 28, 2018 USD ($) financial_institution	Feb. 28, 2017 USD ($)	Aug. 31, 2017 USD ($)
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Cash proceeds from sales of accounts receivable programs				$ 1,400	$ 178,800
Cash payments to the owners of accounts receivable				91,400	183,900
Discounts on sales of accounts receivable	$ 196	$ 201		454	409
Discounts on sales of accounts receivable, including discontinued operations		$ 200			$ 400
U.S.
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Current advance limit for accounts receivable sold				$ 200,000
Number of financial institutions | financial_institution			2	2
Maximum advance limit for accounts receivable sold				$ 300,000
Trade accounts receivable sold	246,700			246,700		$ 226,900
Advance payment received on sale of trade account receivable	0			0		90,000
Polish program
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Current advance limit for accounts receivable sold			zł 220.0	64,200
Trade accounts receivable sold	$ 91,300			$ 91,300		$ 79,500
Advances, maximum percentage of eligible receivables			90.00%	90.00%