ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification out of accumulated other comprehensive income (loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Unrealized gain (loss) on derivatives:
Income taxes (expense) benefit	$ 949	$ 237	$ (128)
Net of income taxes	(1,758)	(1,268)	337
Foreign currency translation adjustments and other | SG&A expenses
Foreign currency translation adjustments and other:
Translation gain realized upon sale of investment in foreign entity	10,127	0	0
Unrealized gain (loss) on derivatives
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	(2,707)	(1,505)	465
Income taxes (expense) benefit	949	237	(128)
Net of income taxes	(1,758)	(1,268)	337
Unrealized gain (loss) on derivatives | Commodity | Cost of goods sold
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	(665)	(160)	(260)
Unrealized gain (loss) on derivatives | Foreign exchange | Cost of goods sold
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	(2,774)	(1,698)	0
Unrealized gain (loss) on derivatives | Foreign exchange | Net sales
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	124	(232)	60
Unrealized gain (loss) on derivatives | Foreign exchange | SG&A expenses
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	76	53	48
Unrealized gain (loss) on derivatives | Interest rate | Interest expense
Unrealized gain (loss) on derivatives:
Reclassification adjustments from AOCI on derivatives, before Tax	532	532	617
Defined benefit obligation
Defined benefit obligation:
Reclassification adjustments from AOCI, pension and other postretirement benefit plans, before tax	(63)	(1,315)	(44)
Income taxes (expense) benefit	21	165	7
Net of income taxes	(42)	(1,150)	(37)
Defined benefit obligation | SG&A expenses
Defined benefit obligation:
Amortization of net loss	(134)	(1,604)	(252)
Amortization of prior service credit	$ 71	$ 289	$ 208