DERIVATIVES AND RISK MANAGEMENT (Effective Portion of Derivatives Designated as Cash Flow Hedging Instruments Recognized in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	$ 14	$ 310	$ 25	$ 442
Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	0	118	0	217
Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss), net of income taxes, for cash flow hedges recognized in AOCI	$ 14	$ 192	$ 25	$ 225