ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification out of accumulated other comprehensive income (loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Unrealized gain (loss) on derivatives:
Income taxes	$ (496)	$ 949	$ 237
Net of income taxes	1,737	(1,758)	(1,268)
Foreign currency translation adjustments and other | SG&A expenses
Foreign currency translation adjustments and other:
Translation gain (loss) realized upon sale of investment in foreign entity	(12,597)	10,127	0
Unrealized gain (loss) on derivatives
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	2,233	(2,707)	(1,505)
Income taxes	(496)	949	237
Net of income taxes	1,737	(1,758)	(1,268)
Unrealized gain (loss) on derivatives | Commodity | Cost of goods sold
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	(493)	(665)	(160)
Unrealized gain (loss) on derivatives | Foreign exchange | Cost of goods sold
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	2,283	(2,774)	(1,698)
Unrealized gain (loss) on derivatives | Foreign exchange | Net sales
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	(380)	124	(232)
Unrealized gain (loss) on derivatives | Foreign exchange | SG&A expenses
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	291	76	53
Unrealized gain (loss) on derivatives | Interest rate | Interest expense
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	532	532	532
Defined benefit obligation
Defined benefit obligation:
Reclassification adjustments from AOCI, pension and other postretirement benefit plans, before tax	(68)	(63)	(1,315)
Income tax effect	22	21	165
Net of income taxes	(46)	(42)	(1,150)
Defined benefit obligation | SG&A expenses
Defined benefit obligation:
Amortization of net loss	(140)	(134)	(1,604)
Amortization of prior service credit	$ 72	$ 71	$ 289