SALES OF ACCOUNTS RECEIVABLE (Narrative) (Details) $ in Thousands, zł in Millions	3 Months Ended		9 Months Ended
	May 31, 2018 USD ($)	May 31, 2017 USD ($)	May 31, 2018 PLN (zł) financial_institution	May 31, 2018 USD ($) financial_institution	May 31, 2017 USD ($)	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				$ 145,500	$ 246,000
Cash payments to the owners of accounts receivable				217,400	250,300
Discounts on sales of accounts receivable	$ 261	$ 230		715	639
Discounts on sales of accounts receivable, including discontinued operations		$ 200			$ 700
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	272,900			272,900		$ 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	59,600
Trade accounts receivable sold	79,300			79,300		79,500
Advance payment received on sale of trade account receivable	$ 18,100			$ 18,100		$ 0
Advances, maximum percentage of eligible receivables			90.00%	90.00%